Pentax SP 10x50 WP Binocular

Pentax 10x50 S-Series SP WP Binoculars

The Rugged, High-Magnification Porro-Prism Powerhouse

For outdoor enthusiasts who demand serious magnification without sacrificing low-light performance, the Pentax 10x50 S-Series SP WP binoculars deliver an incredibly bright, immersive viewing experience. Whether you are stargazing on a clear night, observing elusive wildlife across a sweeping valley, or tracking movement at dawn, this optic combines a powerful 10x magnification with massive 50mm objective lenses to pull distant subjects right into your lap while keeping the image impressively bright.

Built around a traditional, highly reliable Porro prism design, these binoculars offer a rich, three-dimensional depth of field that brings flat landscapes to life. Pentax has paired this classic optical path with a fully waterproof, nitrogen-purged housing and premium multi-coated glass, resulting in a heavy-duty observation tool that thrives in extreme weather and the challenging low-light conditions of twilight.

Why You'll Love These Binoculars

• Massive 50mm Objective Lenses: The large 50mm front lenses act as massive light-gathering buckets. Generating a bright 5.0mm exit pupil, this allows you to maintain contrast-rich images even when observing under heavy cloud cover, deep within a forest canopy, or during the twilight hours where smaller binoculars simply go dark.

• The Powerful 10x Advantage: Moving up to a 10x magnification provides significantly more reach than standard 8x binoculars. It allows you to uncover fine, intricate details on distant subjects, making it an exceptional choice for observing skittish wildlife or birds that simply cannot be approached closely.

• Fully Waterproof (WP) & Fogproof: The "WP" designation means these binoculars are built for the harshest environments. They are nitrogen-purged and O-ring sealed (JIS Class 6), meaning they are completely immune to internal fogging during rapid temperature changes and can survive being fully submerged in up to 1 meter (3.3 feet) of water.

• Immersive Porro Prisms: Utilizing the traditional, wide-set Porro prism (BAK4) configuration gives scenes a rich, "three-dimensional" depth of view for an immersive observation experience. It also provides a highly ergonomic, comfortable feel in the hands with plenty of surface area for a sure grip.

• Fully Multi-Coated Optics: Every optical surface within the binoculars is fully multi-coated to reduce glare and internal reflections. This ensures that the maximum amount of light reaches your eyes, providing stunningly bright, color-accurate views.

• Exceptional Comfort for Eyeglass Wearers: Featuring a highly generous 20mm of eye relief, these binoculars can be perfectly customized to your face. Whether you wear thick eyeglasses, sunglasses, or no glasses at all, you can comfortably see the entire field of view by folding down the soft rubber eyecups.

Technical Specifications

Things to Note

Because these binoculars utilize massive 50mm lenses inside a classic Porro-prism design, they are physically much wider and "chunkier" than modern roof-prism models. Weighing over 2.3 pounds (1060g), if you plan to hike with them rather than using a tripod, a specialized binocular chest harness is highly recommended to distribute the weight evenly across your back and prevent neck strain.

Secondly, 10x magnification sits right on the edge of what is comfortable to handhold for most people. While easier to hold steady than the 12x version, the natural micro-tremors of your hands will still be amplified. For extended observation sessions (like astronomy or overlooking a valley for hours), you may want to invest in a tripod adapter to mount these binoculars for a steady, fatigue-free view.

Finally, keep in mind that the minimum focusing distance is 18.0 feet. These binoculars are engineered specifically for distant observation; if a butterfly lands on a flower just outside your window, they will not be able to focus on it.

• Fast Shipping: We ship all orders within one business day.
• Expert Packaging: Your gear is packed professionally to ensure safe transit.
• Combined Shipping: Buying multiple items? We gladly combine shipping to save you money.
• We BUY Gear: We are always looking to purchase your used photographic equipment!  We pay TOP DOLLAR!!

Our team has over 35 years in the photo industry. They are fair and know their equipment. Larger camera stores can’t give you the value you deserve. All of our used equipment goes through a complete inspection. Camera Exchange can give you trusted advice. We have sold over 30,000 pieces of equipment since 2013. Camera Exchange supports the Photo Community.

At Camera Exchange, we made the trade-in process simple: Go to our site...Fill out our form...Get a quote in 24 hours...Get paid.