Product Description

Pentax 8x25 UP WP Compact Binocular - 61931 employs an innovative unibody design that locks the objective lenses into the body with the eyepieces set on a synchronized dual-axis mechanism that ensures they stay symmetrical in relation to the centre axis of the optic when adjusting the interpupillary distance. The 25mm objective lenses are fully multicoated to reduce reflection and maximize light transmission to produce the brightest images possible. Aspherical lens elements virtually eliminate distortion, especially around the edges, and corrects for lens astigmatism which can prevent sharp focusing.

Designed for easy carrying and stowing, the binocular features a lightweight fibreglass-reinforced polycarbonate housing that is corrosion and impact resistant. The housing material is also temperature-resistant allowing for its use in extreme climates while reducing expansion and contraction wide temperature variations can cause, which can make the optical components move out of collimation over time.

Its optical tubes are nitrogen-filled and O-ring sealed so they can are submersible to 3.3', as well as fogproof in all weather conditions.


Key Features of the Pentax 8x25 UP WP Compact Binocular - 61931

Optical Performance

  • 8x magnification
  • 25mm objective lenses
  • BAK4 Porro-prism optical design.
  • Aspherical lens elements reduce distortion at the edges and correct for lens astigmatism which can prevent sharp focusing.
  • Anti-reflection fully multi-coated optics.
  • 325.5' field of view at 1000 yards.
  • 50° angle of view

Use and Handling

  • Dual-axis synchronized eyepiece adjustment ensures symmetrical placement when changing interpupillary distances.
  • Knurled centre focus wheel.
  • Twist-up eyecups for use with or without eyewear.
  • 15mm eye relief, 3.1mm exit pupil
  • Standard 1/4"-20 tripod mount

Construction Details

  • Lightweight fibreglass-reinforced polycarbonate housing.
  • Housing is corrosion, temperature and impact-resistant.
  • Nitrogen-filled for fogproof performance, submersible to 3.3' (1m).
  • Rubberized armouring protects against impacts and provides a slip-resistant grip.
  • Inner focusing mechanism provides smooth focus while preserving waterproof seals.

  • MPN - 61931
  • GTIN - 8809298885182
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SAMYANG 50mm T1.5 VDSLR II - Canon EOS Full Frame

Shipped by: digiDirect
SKU
119556
digiDirect Price
$859.00
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$859.00
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Product Overview

  • EF Mount Lens/Full Frame Format
  • Aperture Range: T1.5 - T22
  • One Aspherical, One Hybrid Asph. Element
  • Manual Focus and Aperture
  • Geared Focus and Aperture Control Rings
  • De-Clicked Aperture Control Ring
  • UMC Lens Multi-Coating
  • Minimum Focus Distance of 1.5'
  • Lateral Aperture and Distance Markings
+ Read more

Pentax 8x25 UP WP Compact Binocular - 61931 employs an innovative unibody design that locks the objective lenses into the body with the eyepieces set on a synchronized dual-axis mechanism that ensures they stay symmetrical in relation to the centre axis of the optic when adjusting the interpupillary distance. The 25mm objective lenses are fully multicoated to reduce reflection and maximize light transmission to produce the brightest images possible. Aspherical lens elements virtually eliminate distortion, especially around the edges, and corrects for lens astigmatism which can prevent sharp focusing.

Designed for easy carrying and stowing, the binocular features a lightweight fibreglass-reinforced polycarbonate housing that is corrosion and impact resistant. The housing material is also temperature-resistant allowing for its use in extreme climates while reducing expansion and contraction wide temperature variations can cause, which can make the optical components move out of collimation over time.

Its optical tubes are nitrogen-filled and O-ring sealed so they can are submersible to 3.3', as well as fogproof in all weather conditions.


Key Features of the Pentax 8x25 UP WP Compact Binocular - 61931

Optical Performance

  • 8x magnification
  • 25mm objective lenses
  • BAK4 Porro-prism optical design.
  • Aspherical lens elements reduce distortion at the edges and correct for lens astigmatism which can prevent sharp focusing.
  • Anti-reflection fully multi-coated optics.
  • 325.5' field of view at 1000 yards.
  • 50° angle of view

Use and Handling

  • Dual-axis synchronized eyepiece adjustment ensures symmetrical placement when changing interpupillary distances.
  • Knurled centre focus wheel.
  • Twist-up eyecups for use with or without eyewear.
  • 15mm eye relief, 3.1mm exit pupil
  • Standard 1/4"-20 tripod mount

Construction Details

  • Lightweight fibreglass-reinforced polycarbonate housing.
  • Housing is corrosion, temperature and impact-resistant.
  • Nitrogen-filled for fogproof performance, submersible to 3.3' (1m).
  • Rubberized armouring protects against impacts and provides a slip-resistant grip.
  • Inner focusing mechanism provides smooth focus while preserving waterproof seals.

  • MPN - 61931
  • GTIN - 8809298885182
+ Read more
Brand Samyang
Focal Length 50 mm
Aperture Range T1.5 - T22
Camera Mount Canon EF
Lens Format Full Frame
Minimum Focusing Distance 1.5’ / 0.45 m
Angle Of View Full Frame: 46.2
Groups 6
Diaphragm Blades 8
Elements 9
Dimensions (DxL) 3.2 x 3.2“ / 81.3 x 81.3 mm
Weight 575
Gear MOD & Pitch Focus: 0.8 MOD / 32 Pitch
Iris: 0.8 MOD / 32 Pitch
Iris Blades 8
Minimum Focus Distance from Image Plane 0.45 m
Format Full Frame
Optical Construction 9 Elements in 6 Groups
Lens Mount Canon EF
Angle of view Diagonal: Full Frame 46.2
Dimensions (max) 81.3 x 81.3 mm
Filter size 77 mm
Weight 575.0 g
Maximum T-Stop T1.5
Minimum T-Stop T22
Length 74.7 mm
Focal length 50 mm
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What’s In The Box
  • Samyang 50mm T1.5 VDSLR Canon EOS Full Frame
  • Samyang 50mm T1.5 VDSLR Canon EOS Full Frame x 1
  • Front Lens Cap x 1
  • Rear Lens Cap x 1
  • Removable Petal-Style Lens Hood x 1
  • Soft Case x 1
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