Pentax SP 8x40 WP Binoculars
Large objective lens elements provide maximum light gathering capabilities and are perfect for use in low light conditions. Premium multi-layer coatings assure the maximum light transmission through the binocular. The result is bright, crisp, true-to-life images in the widest range of viewing conditions. Specialized protective coating repels dust, water and grease to keep your optics clean and your image quality at its peak. (SD Models Only) Rigid body construction makes these binoculars extremely rugged to maintain optical alignment. This ensures comfortable viewing throughout the life of the product. Waterproof and nitrogen-filled (JIS Class 6) to handle the most extreme weather conditions (submersible to 1m). Description Superior quality full sized binoculars that are ideal for the widest range of lighting and weather conditions. Exceptional quality meets high-end expectations. Large objective lenses incorporated in the design allow for contrast-rich, bright viewing under all light conditions.
Large objective lens elements provide maximum light gathering capabilities and are perfect for use in low light conditions. Premium multi-layer coatings assure the maximum light transmission through the binocular. The result is bright, crisp, true-to-life images in the widest range of viewing conditions. Specialized protective coating repels dust, water and grease to keep your optics clean and your image quality at its peak. (SD Models Only) Rigid body construction makes these binoculars extremely rugged to maintain optical alignment. This ensures comfortable viewing throughout the life of the product. Waterproof and nitrogen-filled (JIS Class 6) to handle the most extreme weather conditions (submersible to 1m). Description Superior quality full sized binoculars that are ideal for the widest range of lighting and weather conditions. Exceptional quality meets high-end expectations. Large objective lenses incorporated in the design allow for contrast-rich, bright viewing under all light conditions.
Large objective lens elements provide maximum light gathering capabilities and are perfect for use in low light conditions. Premium multi-layer coatings assure the maximum light transmission through the binocular. The result is bright, crisp, true-to-life images in the widest range of viewing conditions. Specialized protective coating repels dust, water and grease to keep your optics clean and your image quality at its peak. (SD Models Only) Rigid body construction makes these binoculars extremely rugged to maintain optical alignment. This ensures comfortable viewing throughout the life of the product. Waterproof and nitrogen-filled (JIS Class 6) to handle the most extreme weather conditions (submersible to 1m). Description Superior quality full sized binoculars that are ideal for the widest range of lighting and weather conditions. Exceptional quality meets high-end expectations. Large objective lenses incorporated in the design allow for contrast-rich, bright viewing under all light conditions.
Large objective lens elements provide maximum light gathering capabilities and are perfect for use in low light conditions. Premium multi-layer coatings assure the maximum light transmission through the binocular. The result is bright, crisp, true-to-life images in the widest range of viewing conditions. Specialized protective coating repels dust, water and grease to keep your optics clean and your image quality at its peak. (SD Models Only) Rigid body construction makes these binoculars extremely rugged to maintain optical alignment. This ensures comfortable viewing throughout the life of the product. Waterproof and nitrogen-filled (JIS Class 6) to handle the most extreme weather conditions (submersible to 1m). Description Superior quality full sized binoculars that are ideal for the widest range of lighting and weather conditions. Exceptional quality meets high-end expectations. Large objective lenses incorporated in the design allow for contrast-rich, bright viewing under all light conditions.
in 27 offers
The lowest price for Pentax SP 8x40 WP Binoculars right now is $149.00 at Amazon.com.au, compared across 24 retailers.
The all-time low was $135.59 on 25 May 2026 — today's price is 10% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 10 June 2026.
Last updated at 10/06/2026 02:39:55
Pentax 65871 8X40 Porro Prism Waterproof Binocular
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Pentax 65871 8X40 Porro Prism Waterproof Binocular
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Pentax SP 8X40 WP Binoculars - Pentax Binoculars Best Mid-Size Binocular
Free delivery between Thu – Fri
Pentax SP 8x40 WP Binoculars
Delivery $12.50
Pentax 8x40 S-Series SP WP Binoculars
Delivery $15
Pentax SP 8x40 WP Binoculars
Delivery between 11–22 June $10
Pentax 8X40 SP Waterproof Binoculars
Free delivery
Pentax SP 8x40 Waterproof Binoculars
Free delivery between 12–19 June
Pentax 8x40 S-Series SP WP Binoculars
Pentax SP 8x40 Waterproof Binoculars
Free delivery
originally posted on adorama.com
This is the 4th pair of the exact binoculars I've bought. The first was for our boat, the next 2 for my son-in-laws and this last pair for our home! Everyone that uses them loves them! It's a fantastic product with a great price!!
originally posted on adorama.com
These are great for bird watching, and any other relevant purpose. The close focus is great for viewing at my yard feeders, that are too close for many binoculars. The long eye point helps with eyeglasses. They are lightweight and waterproof, and have excellent optics with accurate color transmission. My previous binoculars, by another maker, didn't transmit reds well, so cardinals looked brown. A lot of product for the money.
originally posted on adorama.com
Great product, easy to use, worth the money, fantastic for bird watching, better than nikon, when it dirty i just put it under the shower and it clean in 30 sec.
| Magnification | 8 x |
| Objective Lens Diameter | 40 mm |
| Prism System | Porro |
| Prism Material | BAK4 |
| Exit Pupil | 5 mm |
Pentax 65871 8X40 Porro Prism Waterproof Binocular
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Pentax 65871 8X40 Porro Prism Waterproof Binocular
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Pentax SP 8X40 WP Binoculars - Pentax Binoculars Best Mid-Size Binocular
Free delivery between Thu – Fri
Pentax SP 8x40 WP Binoculars
Delivery $12.50
Pentax 8x40 S-Series SP WP Binoculars
Delivery $15
This is the 4th pair of the exact binoculars I've bought. The first was for our boat, the next 2 for my son-in-laws and this last pair for our home! Everyone that uses them loves them! It's a fantastic product with a great price!!
These are great for bird watching, and any other relevant purpose. The close focus is great for viewing at my yard feeders, that are too close for many binoculars. The long eye point helps with eyeglasses. They are lightweight and waterproof, and have excellent optics with accurate color transmission. My previous binoculars, by another maker, didn't transmit reds well, so cardinals looked brown. A lot of product for the money.
Great product, easy to use, worth the money, fantastic for bird watching, better than nikon, when it dirty i just put it under the shower and it clean in 30 sec.
They are sharp and well collimated, easy to focus and very comfortable to use. I wear spectacles and I find the eye relief ample. The choice of 8x magnification works well with the 40mm objectives and the view is very bright. Everything from birds in the tree tops to stars in the sky are pinpoint sharp with great contrast and natural colour. The design is a well considered balance of everything you need in a general purpose binocular with a minimum of compromise and a great price. The internal focus works well and is likely to make the weather sealing effective. Everything about it is solid and easy to use. It's heavy at 900 grams and bulkier than a roof prism design, but for the price they are simply brilliant. The only thing not to like are the worse than useless ... MoreThey are sharp and well collimated, easy to focus and very comfortable to use. I wear spectacles and I find the eye relief ample. The choice of 8x magnification works well with the 40mm objectives and the view is very bright. Everything from birds in the tree tops to stars in the sky are pinpoint sharp with great contrast and natural colour. The design is a well considered balance of everything you need in a general purpose binocular with a minimum of compromise and a great price. The internal focus works well and is likely to make the weather sealing effective. Everything about it is solid and easy to use. It's heavy at 900 grams and bulkier than a roof prism design, but for the price they are simply brilliant. The only thing not to like are the worse than useless lens covers - they simply won't stay on. They should be considered part of the packaging not part of the product. With reasonable care and an occasional clean the lenses will survive just fine even without the lens caps. I chose these over the Nikon 7x35 and 8x40 action extreme due to the Pentaxes better eye relief and internal focus. All in all I'm very happy and will likely get myself a pair of 20x60 Pentaxes to mount on a tripod for stargazing given my experience with these.
These are excellent binoculars. I use them for handheld binocular astronomy. They inspire confidence: Fully multi-coated, waterproof, solid mechanics, comfortable in the hand. Most importantly, they see well: Stars are pinpoints. The Orion Nebula, the Beehive Cluster, and the Double Cluster in Perseus all appeared clear and beautiful. For 8x I expected it to split the double star Kuma (or Nu Draconis) in Draco, and it did. It also showed 2 of Jupiter's moons on a not-so-clear night as clear points (the other two moons were too close to the planet and so appeared as one). The 6 FOV is adequate. Daytime views are neutral, not tinted. I am not comparing them to 7x50, 10x50, or IS binoculars, as each of these display the skies differently, each having its own unique ... MoreThese are excellent binoculars. I use them for handheld binocular astronomy. They inspire confidence: Fully multi-coated, waterproof, solid mechanics, comfortable in the hand. Most importantly, they see well: Stars are pinpoints. The Orion Nebula, the Beehive Cluster, and the Double Cluster in Perseus all appeared clear and beautiful. For 8x I expected it to split the double star Kuma (or Nu Draconis) in Draco, and it did. It also showed 2 of Jupiter's moons on a not-so-clear night as clear points (the other two moons were too close to the planet and so appeared as one). The 6 FOV is adequate. Daytime views are neutral, not tinted. I am not comparing them to 7x50, 10x50, or IS binoculars, as each of these display the skies differently, each having its own unique advantage over the others. But as 8x40s go, these are superb. Easy to grab and go, no need to mount, comfortable to use, with clear and pleasing views.
Great binocular's! Work great, love 'em!
Excellent quality, very clear, so impressed with an earlier pair, this ones for my wife.
Rugged, well designed, great optics binoculars, excellent value, very good eye relief for glasses wearers.
The most comfortable binoculars in hand I ever held. Solid as a rock. Feels like military equipment. My wife, who could care less about cameras or optical devices, loves them. Razor sharp with great color, matching my Zeiss Victories and Kahles Austrian made glass. I don't think they are best for birding because the focus has a long throw that doesn't snap in like the Kahles. Also the objective lenses are closer together than most porros so the 3D punch is not quite as dramatic as for example my Swift 8.5x43s.....more like what you get from roofs. But I can't believe what you are getting for the money. They are my current favorites.
| Magnification | 8 x |
| Objective Lens Diameter | 40 mm |
| Prism System | Porro |
| Prism Material | BAK4 |
| Exit Pupil | 5 mm |
