Tamron SP 70-200mm f/2.8 Di Usd Zoom Lens For Sony, Mount A Mount, Full Frame ES Telephoto Focus Autofocus, Constant
This is a wide-aperture telephoto zoom lens compatible with full-size SLR cameras, equipped with Tamron's proprietary Vibration Compensation (Vc) image stabilization*2 and Ultrasonic Silent Drive (Usd) motor that ensures a speedy, silent autofocus. Using the Extra Low Dispersion (Xld) glass and Low Dispersion (Ld) elements, this lens offers a new level of correction for chromatic aberrations, while the new advanced optical design delivers higher performance with excellent contrast and resolution. Packed in a compact body that's smallest in its class, this lens boasts high image quality and F/ 2.8 brightness across the zoom range. In addition, use of a rounded diaphragm*3 has enabled this lens to achieve spectacular blur effects. For landscapes, sports, fashion, or journalism, the 70-200mm will expand the possibilities of photographic expression.
This is a wide-aperture telephoto zoom lens compatible with full-size SLR cameras, equipped with Tamron's proprietary Vibration Compensation (Vc) image stabilization*2 and Ultrasonic Silent Drive (Usd) motor that ensures a speedy, silent autofocus. Using the Extra Low Dispersion (Xld) glass and Low Dispersion (Ld) elements, this lens offers a new level of correction for chromatic aberrations, while the new advanced optical design delivers higher performance with excellent contrast and resolution. Packed in a compact body that's smallest in its class, this lens boasts high image quality and F/ 2.8 brightness across the zoom range. In addition, use of a rounded diaphragm*3 has enabled this lens to achieve spectacular blur effects. For landscapes, sports, fashion, or journalism, the 70-200mm will expand the possibilities of photographic expression.
This is a wide-aperture telephoto zoom lens compatible with full-size SLR cameras, equipped with Tamron's proprietary Vibration Compensation (Vc) image stabilization*2 and Ultrasonic Silent Drive (Usd) motor that ensures a speedy, silent autofocus. Using the Extra Low Dispersion (Xld) glass and Low Dispersion (Ld) elements, this lens offers a new level of correction for chromatic aberrations, while the new advanced optical design delivers higher performance with excellent contrast and resolution. Packed in a compact body that's smallest in its class, this lens boasts high image quality and F/ 2.8 brightness across the zoom range. In addition, use of a rounded diaphragm*3 has enabled this lens to achieve spectacular blur effects. For landscapes, sports, fashion, or journalism, the 70-200mm will expand the possibilities of photographic expression.
This is a wide-aperture telephoto zoom lens compatible with full-size SLR cameras, equipped with Tamron's proprietary Vibration Compensation (Vc) image stabilization*2 and Ultrasonic Silent Drive (Usd) motor that ensures a speedy, silent autofocus. Using the Extra Low Dispersion (Xld) glass and Low Dispersion (Ld) elements, this lens offers a new level of correction for chromatic aberrations, while the new advanced optical design delivers higher performance with excellent contrast and resolution. Packed in a compact body that's smallest in its class, this lens boasts high image quality and F/ 2.8 brightness across the zoom range. In addition, use of a rounded diaphragm*3 has enabled this lens to achieve spectacular blur effects. For landscapes, sports, fashion, or journalism, the 70-200mm will expand the possibilities of photographic expression.
in 13 offers
The lowest price for Tamron SP 70-200mm f/2.8 Di Usd Zoom Lens For Sony, Mount A Mount, Full Frame ES Telephoto Focus Autofocus, Constant right now is $699.00 at Cash Converters, compared across 6 retailers.
The all-time low was $699.00 on 1 Aug 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 1 Aug 2026.
Last updated at 01/08/2026 20:31:53
Tamron Usd 077 Di Zoom Nikon Black Camera Lens
Delivery $28.20
Used Tamron SP 70-200mm f/2.8 Di VC for Nikon F - Good
Delivery $42.76
Used Tamron 70-200mm F2.8 AF SP Di VC USD Lens For Nikon F - Excellent
Delivery $35.63
Used Tamron SP 70-200mm f/2.8 Di VC USD Lens for Canon EF - Excellent
Delivery $42.76
Used Tamron SP 70-200mm f/2.8 Di VC USD Lens for Canon EF - Excellent
Delivery $35.63
Tamron 70-200mm f2.8 SP VC DI USD (A009)
Delivery between 7–14 Aug $59
Tamron Sp f2.8 70-200mm Di VC USD for Minolta Sony A-Mount
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[top Mint] Tamron Sp 70-200mm F/2.8 Di Vc Usd A009 Lens For Canon Ef
Free delivery
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[top Mint] Tamron Sp 70-200mm F/2.8 Di Vc Usd A009 Lens For Canon Ef
Free delivery
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Tamron Sp 70-200mm F/2.8 Di Sp Usd For Canon Ef
Delivery $14.95
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originally posted on bhphotovideo.com
I rented the Nikon 70-200 2.8E FL before pre-ordering the Tamron. Body and handling In this latest generation of 70-200 workhorses, both brands flipped the position of the focus and zoom rings, with the focus ring closer to the body. This means my grip is indeed a bit farther out to stay in reach of the more often used zoom ring, placing the heel of my palm partially on the focus ring. Even in A/M mode on the Nikon (which is supposed to reduce focus ring sensitivity to avoid accidentally nudging the focus), I did experience some slight shifting of focus from my palm.While it was pretty rare, the slight movement in the ring gave me just enough doubt, that I'd overuse my focus just to be safe (when back-button focusing). I have not experienced this with the Tamron at ... MoreI rented the Nikon 70-200 2.8E FL before pre-ordering the Tamron. Body and handling In this latest generation of 70-200 workhorses, both brands flipped the position of the focus and zoom rings, with the focus ring closer to the body. This means my grip is indeed a bit farther out to stay in reach of the more often used zoom ring, placing the heel of my palm partially on the focus ring. Even in A/M mode on the Nikon (which is supposed to reduce focus ring sensitivity to avoid accidentally nudging the focus), I did experience some slight shifting of focus from my palm.While it was pretty rare, the slight movement in the ring gave me just enough doubt, that I'd overuse my focus just to be safe (when back-button focusing). I have not experienced this with the Tamron at all. I believe this is partially due to the focus ring being significantly narrower than the Nikon's, and a bit stiffer, though not quite as smooth.It's a small thing, but the confidence is crucial to keeping my mind on the shoot and not the lens. The Nikon has AF buttons that are pretty useful in certain situations, and also help prevent accidentally nudging focus by keeping your hand farther out. Otherwise, the Nikon body is familiar and sturdy. It looks and feels the same as other high quality Nikkor glass. The Tamron body has a significantly higher end feel than other Tamron lenses, including other SP line lenses like the 24-70 and 90mm Macro. The Tamron metal seems to show scuffs easier. Just hanging on my side, the frequent rubbing against my clothes seems to have left some light superficial marks on the surface. Nothing damaging, not scratches, more like polishing lines which are only visible under certain light. It's not a big deal considering this is a workhorse of a lens, and it is certainly sturdy enough for professional use, but it's a bit discouraging to see my new lens marked up after one weekend. Speaking of hanging to my side, the Tamron switches protrude a bit more than the Nikons and were constantly being flipped while I walked. If running around, each time I raised the lens, the AF or VC would be off again and I'd have to double check. This caused me to miss a couple shots in quick draw scenarios at a sporting event when AF was flipped to MF accidentally. The Arca Swiss foot on the Tamron is great! However, since I prefer to mount my strap to the foot to relieve strain on the lens mount, I still have to add a plate. So while I greatly appreciate the thought (all my tripods and mounts are Arca-Swiss compatible), it unfortunately probably won't get much use in the field. Small thing, but the Nikon hood clicks on with a switch to release and feels very secure. The Tamron uses the standard friction point. In case you were wondering, the G2 will not mount to the Nikon TC-14E II 1.4x teleconverter, not even a modified one to fit older lenses. So if you're looking to get a little extra range, expect to dish out another $400 for the Tamron teleconverter. Performance I didn't experience any noticeable difference in autofocus speed or accuracy. The Tamron is very fast and accurate and does not hunt, even in low light. It even handles backlit situations with light coming into the lens very well and is still able to grab focus very quickly and with confidence. The Tamron VC seems to work better than the Nikon's VR. I have no trouble getting crisp shots at 1/20 at 200mm, handheld. The Tamron focuses about 6 closer which is too close for headshots, but it does throw the background out nicely for close-ups. Image quality The Nikon produces images with a little more contrast, particularly in the details. Though the Tamron images are a bit flatter, the colors feel more natural and a bit more saturated. With two perfectly in focus samples side-by-side, the Nikon may be very slightly sharper wide open, but this could be only the extra microcontrast on the Nikon. Overall, this is a fantastic lens and a bargain. (Attached photo is a SOOC RAW processed with no adjustments, and an example of light coming directly into the lens, which had no trouble grabbing focus)
originally posted on ebay.com
It is an amazing optical instrument - its sharpness rivals even the Canon's latest L series lens - check out independent lab results. But what is most interesting for Sony cameras, is that it functions perfectly on either native A-mount or on E-mount using either of the Sony adopters. It works particularly well with the AE3 on the latest e-mount cameras, taking advantage of the advanced focusing system. I've tried it on A7Rii - and it works great, but I suspect that the lens will work even quicker on the iii generation of cameras. There is no focus limiter nor focus hold button, but the lens' focusing is so quick and the manual - always on assist work so well that neither of those buttons are necessary. The only thing that is missing thus far, is the eye focus ... MoreIt is an amazing optical instrument - its sharpness rivals even the Canon's latest L series lens - check out independent lab results. But what is most interesting for Sony cameras, is that it functions perfectly on either native A-mount or on E-mount using either of the Sony adopters. It works particularly well with the AE3 on the latest e-mount cameras, taking advantage of the advanced focusing system. I've tried it on A7Rii - and it works great, but I suspect that the lens will work even quicker on the iii generation of cameras. There is no focus limiter nor focus hold button, but the lens' focusing is so quick and the manual - always on assist work so well that neither of those buttons are necessary. The only thing that is missing thus far, is the eye focus tracking, which is only available with the Sony's G2 lenses - costing 3 to 4x the Tamron. Very highly recommended.
originally posted on ebay.com
This lens is the companion to the 70-200 f/2.8 lens I have from Tamron. The quality of the lenses is sound, but not perfect as there is some "slop" in the fitment; which I believe might be the reason for some playback issues if held a certain way which may be resulting in loose contacts with my Canon 7D. As far as the resulting photos - they're crisp; especially when shooting action in moderately lit arenas. While this lens may not be quite the same level as the equivalent Canon, it more than suits my needs - and my abilities. For the price, this purchase was a great buy. I would recommend this lens for the advanced beginner, and maybe even beyond.
Tamron Usd 077 Di Zoom Nikon Black Camera Lens
Delivery $28.20
Used Tamron SP 70-200mm f/2.8 Di VC for Nikon F - Good
Delivery $42.76
Used Tamron 70-200mm F2.8 AF SP Di VC USD Lens For Nikon F - Excellent
Delivery $35.63
Used Tamron SP 70-200mm f/2.8 Di VC USD Lens for Canon EF - Excellent
Delivery $42.76
Used Tamron SP 70-200mm f/2.8 Di VC USD Lens for Canon EF - Excellent
Delivery $35.63
I rented the Nikon 70-200 2.8E FL before pre-ordering the Tamron. Body and handling In this latest generation of 70-200 workhorses, both brands flipped the position of the focus and zoom rings, with the focus ring closer to the body. This means my grip is indeed a bit farther out to stay in reach of the more often used zoom ring, placing the heel of my palm partially on the focus ring. Even in A/M mode on the Nikon (which is supposed to reduce focus ring sensitivity to avoid accidentally nudging the focus), I did experience some slight shifting of focus from my palm.While it was pretty rare, the slight movement in the ring gave me just enough doubt, that I'd overuse my focus just to be safe (when back-button focusing). I have not experienced this with the Tamron at ... MoreI rented the Nikon 70-200 2.8E FL before pre-ordering the Tamron. Body and handling In this latest generation of 70-200 workhorses, both brands flipped the position of the focus and zoom rings, with the focus ring closer to the body. This means my grip is indeed a bit farther out to stay in reach of the more often used zoom ring, placing the heel of my palm partially on the focus ring. Even in A/M mode on the Nikon (which is supposed to reduce focus ring sensitivity to avoid accidentally nudging the focus), I did experience some slight shifting of focus from my palm.While it was pretty rare, the slight movement in the ring gave me just enough doubt, that I'd overuse my focus just to be safe (when back-button focusing). I have not experienced this with the Tamron at all. I believe this is partially due to the focus ring being significantly narrower than the Nikon's, and a bit stiffer, though not quite as smooth.It's a small thing, but the confidence is crucial to keeping my mind on the shoot and not the lens. The Nikon has AF buttons that are pretty useful in certain situations, and also help prevent accidentally nudging focus by keeping your hand farther out. Otherwise, the Nikon body is familiar and sturdy. It looks and feels the same as other high quality Nikkor glass. The Tamron body has a significantly higher end feel than other Tamron lenses, including other SP line lenses like the 24-70 and 90mm Macro. The Tamron metal seems to show scuffs easier. Just hanging on my side, the frequent rubbing against my clothes seems to have left some light superficial marks on the surface. Nothing damaging, not scratches, more like polishing lines which are only visible under certain light. It's not a big deal considering this is a workhorse of a lens, and it is certainly sturdy enough for professional use, but it's a bit discouraging to see my new lens marked up after one weekend. Speaking of hanging to my side, the Tamron switches protrude a bit more than the Nikons and were constantly being flipped while I walked. If running around, each time I raised the lens, the AF or VC would be off again and I'd have to double check. This caused me to miss a couple shots in quick draw scenarios at a sporting event when AF was flipped to MF accidentally. The Arca Swiss foot on the Tamron is great! However, since I prefer to mount my strap to the foot to relieve strain on the lens mount, I still have to add a plate. So while I greatly appreciate the thought (all my tripods and mounts are Arca-Swiss compatible), it unfortunately probably won't get much use in the field. Small thing, but the Nikon hood clicks on with a switch to release and feels very secure. The Tamron uses the standard friction point. In case you were wondering, the G2 will not mount to the Nikon TC-14E II 1.4x teleconverter, not even a modified one to fit older lenses. So if you're looking to get a little extra range, expect to dish out another $400 for the Tamron teleconverter. Performance I didn't experience any noticeable difference in autofocus speed or accuracy. The Tamron is very fast and accurate and does not hunt, even in low light. It even handles backlit situations with light coming into the lens very well and is still able to grab focus very quickly and with confidence. The Tamron VC seems to work better than the Nikon's VR. I have no trouble getting crisp shots at 1/20 at 200mm, handheld. The Tamron focuses about 6 closer which is too close for headshots, but it does throw the background out nicely for close-ups. Image quality The Nikon produces images with a little more contrast, particularly in the details. Though the Tamron images are a bit flatter, the colors feel more natural and a bit more saturated. With two perfectly in focus samples side-by-side, the Nikon may be very slightly sharper wide open, but this could be only the extra microcontrast on the Nikon. Overall, this is a fantastic lens and a bargain. (Attached photo is a SOOC RAW processed with no adjustments, and an example of light coming directly into the lens, which had no trouble grabbing focus)
It is an amazing optical instrument - its sharpness rivals even the Canon's latest L series lens - check out independent lab results. But what is most interesting for Sony cameras, is that it functions perfectly on either native A-mount or on E-mount using either of the Sony adopters. It works particularly well with the AE3 on the latest e-mount cameras, taking advantage of the advanced focusing system. I've tried it on A7Rii - and it works great, but I suspect that the lens will work even quicker on the iii generation of cameras. There is no focus limiter nor focus hold button, but the lens' focusing is so quick and the manual - always on assist work so well that neither of those buttons are necessary. The only thing that is missing thus far, is the eye focus ... MoreIt is an amazing optical instrument - its sharpness rivals even the Canon's latest L series lens - check out independent lab results. But what is most interesting for Sony cameras, is that it functions perfectly on either native A-mount or on E-mount using either of the Sony adopters. It works particularly well with the AE3 on the latest e-mount cameras, taking advantage of the advanced focusing system. I've tried it on A7Rii - and it works great, but I suspect that the lens will work even quicker on the iii generation of cameras. There is no focus limiter nor focus hold button, but the lens' focusing is so quick and the manual - always on assist work so well that neither of those buttons are necessary. The only thing that is missing thus far, is the eye focus tracking, which is only available with the Sony's G2 lenses - costing 3 to 4x the Tamron. Very highly recommended.
This lens is the companion to the 70-200 f/2.8 lens I have from Tamron. The quality of the lenses is sound, but not perfect as there is some "slop" in the fitment; which I believe might be the reason for some playback issues if held a certain way which may be resulting in loose contacts with my Canon 7D. As far as the resulting photos - they're crisp; especially when shooting action in moderately lit arenas. While this lens may not be quite the same level as the equivalent Canon, it more than suits my needs - and my abilities. For the price, this purchase was a great buy. I would recommend this lens for the advanced beginner, and maybe even beyond.
I'm relatively new to DSLR photography. However, I've taken a few photography courses and have spoken with many photographers. After doing a lot of on-line research, YouTube reviews, and talking with photographers, the suggestions I received most was to get a 70-200 zoom lens. I am using an entry level Canon Rebel T7i, so the choice boiled down to the Canon lens ($1,700) and the Tamron lens ($730). Not wanting to spend the extra $1,000, I opted for the Tamron and could not be happier. Although the lens is much heavier than I expected, it is still a fantastic lens. The focus is quick and the anti vibration setting makes a huge difference when hand held shooting. What I like about the lens is the larger aperture setting, AND, the aperture remains throughout the zoom. ... MoreI'm relatively new to DSLR photography. However, I've taken a few photography courses and have spoken with many photographers. After doing a lot of on-line research, YouTube reviews, and talking with photographers, the suggestions I received most was to get a 70-200 zoom lens. I am using an entry level Canon Rebel T7i, so the choice boiled down to the Canon lens ($1,700) and the Tamron lens ($730). Not wanting to spend the extra $1,000, I opted for the Tamron and could not be happier. Although the lens is much heavier than I expected, it is still a fantastic lens. The focus is quick and the anti vibration setting makes a huge difference when hand held shooting. What I like about the lens is the larger aperture setting, AND, the aperture remains throughout the zoom. This makes a positive impact on action photography, which is why I purchased this lens. I've been using the lens to take photographs of birds and it's doing a fantastic job. I'm not sure how much of a difference the Tamron is compared to the Canon, but for my money and level of experience, it certainly is a fantastic lens which will get a lot of use.
TL;DR: I settled on this lens because you get a fantastic IQ for the price. I would recommend it to others.Some background. My friend let me borrow the Nikon 70-200 f/4 for testing purposes. I was very impressed by the lightning-fast focus, sharpness, lightweight body, and OS. That was an excellent lens! However, I also enjoy taking portraits and low light nature pictures and craving more light and shallower DOF.My experience with the Tamron is from a Nikon d780 shooting hummingbirds, portraits, and a few landscapes during hikes in dry climates/cities. For these purposes, I have no complaints and would easily compare it to the Nikon 70-200 f4. The focus is fast/accurate, and the main reason for blurry shots is that I lose track of small subjects or some other ... MoreTL;DR: I settled on this lens because you get a fantastic IQ for the price. I would recommend it to others.Some background. My friend let me borrow the Nikon 70-200 f/4 for testing purposes. I was very impressed by the lightning-fast focus, sharpness, lightweight body, and OS. That was an excellent lens! However, I also enjoy taking portraits and low light nature pictures and craving more light and shallower DOF.My experience with the Tamron is from a Nikon d780 shooting hummingbirds, portraits, and a few landscapes during hikes in dry climates/cities. For these purposes, I have no complaints and would easily compare it to the Nikon 70-200 f4. The focus is fast/accurate, and the main reason for blurry shots is that I lose track of small subjects or some other user error. Note that my copy came with a free Tap-in console, so it would have been easy to correct any focusing issues from the factory.The biggest drawback of this lens is that it is somewhat heavy (~1.5kg) to carry around your neck. The weight comes mostly from of the wide aperture in this zoom range and solid construction. I rarely use a tripod/monopod because I'm always moving around and was worried that the weight would be an issue. However, after using this lens as a walking-around lens, I was happy to find that this is not a big issue. Note that all f/2.8 lenses in this focus range have a similar weight. Thus, if this is an essential factor, you might want to consider an f/4 lens (~0.9kg) or smaller.Enjoy.
I used it for the first time to shoot a soccer game last week using a Nikon D5300. It produced spectacular images, but with inconsistent focusing results. It could have been my technique, so I'm going to try again. The zoom ring is distal to the manual focusing ring. So it's possible I may have touched or moved the focusing ring while trying to zoom, or while holding the lens. I have not tried to adjust it with the Tap-in console. The lens includes a tripod foot for a reason, it's really heavy. That said, the foot can be removed for hand-holding, unlike the Sigma 50-100 mm f1.8 which is fixed and a pain. I'll update this review after further practice with the lens.
Lens arrived 2 (free!) days early in near new condition. Popped it on my Z7 and went out to play! At first focus was soft, I recalibrated for mild front focus and got shots sharper than my Nikon z series 24-70 s f4! Big shocker was the vibration control. Shooting at 1/20th with 70 year old hands and getting shots very sharp indeed! I surprised myself and bought the thing….Before retirement I used to help Retail and Service companies improve their customer experience functions. Lens Rental could serve as an example of excellence in this area.
I enjoyed using this lens that offered excellent quality. the color the clarity is superb, I would say it is on par with Nikon version of it. just slightly slower to focus, but for portraiture it is not a big deal.but I would like to warn anyone who would potentially consider using Payboo card affiliated with BH Photos. read my lips: Do NOT use it, it is a predatory business. they charged me $171 interest for the remaining $53 balance. no email, no text, no call, no paper bill, nothing ..It is crystal clear to me that Comenity Capital Bank is willing to stoop to reprehensible depths to extract unwarranted amounts from unsuspecting customers. B&H Photo, a reputable business, should seriously reconsider its association with an institution that seems to value profit ... MoreI enjoyed using this lens that offered excellent quality. the color the clarity is superb, I would say it is on par with Nikon version of it. just slightly slower to focus, but for portraiture it is not a big deal.but I would like to warn anyone who would potentially consider using Payboo card affiliated with BH Photos. read my lips: Do NOT use it, it is a predatory business. they charged me $171 interest for the remaining $53 balance. no email, no text, no call, no paper bill, nothing ..It is crystal clear to me that Comenity Capital Bank is willing to stoop to reprehensible depths to extract unwarranted amounts from unsuspecting customers. B&H Photo, a reputable business, should seriously reconsider its association with an institution that seems to value profit over integrity. I would advise B&H to re-evaluate its association to avoid being tainted by such blatant dishonesty.
Very sharp and fast focus, even in extremely low light. Truly silent, which is great for shooting movies and not disturbing wildlife, or any subject in general, and also providing great bokeh and true separation of subject and background. Great sharpness even wide open in centre and edges and at all apertures. The lens is heavy, which is expected of a f2.8 zoom lens with this TOP quality in optics. I use it on native A- mount, but most of the time on a LA-AE3 Sony lens adapter on a A7III camera. What a great combination! The focusing speed is only a little bit slower than the native FE 70-200 f4 G lens, but only by a bit which I hope will be even better once I update the firmware of the camera. But the sharpness of the Tamron is better, which makes sense since this ... MoreVery sharp and fast focus, even in extremely low light. Truly silent, which is great for shooting movies and not disturbing wildlife, or any subject in general, and also providing great bokeh and true separation of subject and background. Great sharpness even wide open in centre and edges and at all apertures. The lens is heavy, which is expected of a f2.8 zoom lens with this TOP quality in optics. I use it on native A- mount, but most of the time on a LA-AE3 Sony lens adapter on a A7III camera. What a great combination! The focusing speed is only a little bit slower than the native FE 70-200 f4 G lens, but only by a bit which I hope will be even better once I update the firmware of the camera. But the sharpness of the Tamron is better, which makes sense since this lens was supposed to compete against the _twice the price_ Sony *GM* f2.8 A- mount, not the G F4. This Tamron is a great lens over all, even if my lower back disagrees! ;-) That would be my only complaint.
Tried two copies of this lens and had to send both back. The mounts were so loose by design that it allowed a great degree of rotational play between camera and lens: a problem that would compromise the weather sealing and cause blurred shots. I could not see any loose screws or other problems with the Tamron mount that could be repaired, so back they went. Please note; when I mount any of my other lenses, there is no rotational play. Before packing up the second copy, I put it on a heavy tripod with VC off to see what the handling and optics were like, and the lens failed on both counts. The zoom ring was so stiff that each time it was turned in either direction, the entire lens rotated and slammed into the camera mount. When zooming in and out and when focusing, I ... MoreTried two copies of this lens and had to send both back. The mounts were so loose by design that it allowed a great degree of rotational play between camera and lens: a problem that would compromise the weather sealing and cause blurred shots. I could not see any loose screws or other problems with the Tamron mount that could be repaired, so back they went. Please note; when I mount any of my other lenses, there is no rotational play. Before packing up the second copy, I put it on a heavy tripod with VC off to see what the handling and optics were like, and the lens failed on both counts. The zoom ring was so stiff that each time it was turned in either direction, the entire lens rotated and slammed into the camera mount. When zooming in and out and when focusing, I could plainly hear and feel the elements shifting in the barrel - alarming in itself and rendering the lens useless for videotaping. When I tried to shoot a test target from fifteen feet that was mounted where the light was only moderately bright, the lens struggled to attain focus (I picked up my Olympus PEN F with a 150mm equivalent lens and shot handheld from the same position, and the camera repeatedly locked focus instantly). Examining the test target results, it was clear that elements went out of alignment as the lens was zoomed in and out. At 200mm and f/2.8, where I am most likely to shoot with a 70-200mm lens, the top and left side of the target were clearly blurred, while the center, bottom and right were sharp. I repeated these tests five times with the same results. This is my fourth Tamron lens, and the only one with problems. To have two copies of a high-end model fail, and fail so badly, shakes my confidence in the company.