Pentax UP 8-16x21 Zoom Porro Prism Binoculars Black

Pentax UP 8-16x21 Zoom Porro Prism Binoculars Black

Model Number: 61961
Web Code: 11793756
Sold and shipped by | 4.8 seller rating (149 reviews)

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PRODUCT FEATURESAspherical Lens ElementsBAK4 Porro PrismsFully Multicoated Optics8-16x Optical ZoomAngle of View Range: 5-3°Center FocusingSliding Eyecups1/4"-20 Tripod SocketOVERVIEWThe compact and lightweight black 8-16x21 UP Binocular combines aspherical optical elements and BAK4 Porro prisms to deliver edge-to-edge ima

Seller Return Policy

30 days to return or exchange

Condition: Open Box

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Aspherical Lens Elements

·BAK4 Porro Prisms

·Fully Multicoated Optics

·8-16x Optical Zoom

·Angle of View Range: 5-3°

·Center Focusing

·Sliding Eyecups

·1/4"-20 Tripod SocketOVERVIEW

The compact and lightweight black 8-16x21 UP Binocular combines aspherical optical elements and BAK4 Porro prisms to deliver edge-to-edge image sharpness with a wide angle of view. The optical elements are also fully multicoated to provide a high transmission of light. With an 8-16x range of magnification and 21mm objectives, you obtain a wide zooming range and a compact form factor. You can easily spot your targets with a 5° angular field of view at 8x magnification and quickly zoom in on them with the optical zoom. To reduce image jitter at high zoom factors or for prolonged observations, you can connect the binocular to a tripod via an integrated 1/4"-20 socket. In addition to observing distant scenes, birds and game, the minimum focus of 9.9' allows you to study in detail close objects like animal footprints, marks or landscape features. The binocular also features a 2.6-1.3mm exit pupil range, a 14-11mm eye relief range, an interpupillary and a diopter adjustments.

The binocular is very compact, lightweight, and features a single piece frame that houses objectives, which allows for a synchronized interpupillary adjustment. To accommodate eye glasses wearers, the binocular offers sliding rubber eyecups. Also included are a carrying case, a neck strap, and eyepiece covers.

Optical Performance

·Optical zoom range: 8-16x

·BAK4 Porro prisms

·Aspherical optical elements offer edge-to-edge image sharpness

·Fully multicoated optics

·Angular field of view range: 5-3°

·Interpupillary adjustment

·Diopter adjustment

Construction Details


Single piece objectives' frame allows for a synchronized interpupillary adjustment

·Contoured body provides a comfortable grip

·Centre focus knob offers an easy focusing

·Sliding rubber eyecups

·1/4"-20 tripod socket


Prism TypePorro


Objective Lens Diameter21 mm

Angle of View8x: 5° (actual)

16x: 3° (actual)

Field-of-View8x: 261' @ 1000 yd / 86.65 m @ 1000 m

16x: 156' @ 1000 yd / 51.79 m @ 1000 m

Minimum Focus Distance9.9' / 3.02 m

Exit Pupil Diameter8x: 2.6 mm

16x: 1.3 mm

Eye Relief8x: 14 mm

16x: 11 mm

Focus TypeCentre

Tripod MountYes

Dimensions4.37 x 4.37 x 2.1" / 11.10 x 11.10 x 5.33 cm

Weight10.9 oz / 309 g

Optic Type
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Processing Time
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CameraCanada Restocking Fees / Return Eligibility
Category Return Period Un-opened Opened
Headphones and Earphones (all types) 30 Days 0% Not Returnable
Camera & Camcorder Accessories 30 Days 0% 15%
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Drones 30 Days 0% 15%
Full-Frame Cameras 30 Days 0% 15%
Photo Film 30 Days 0% 15%
Printers 30 days 0% 15%
Batteries 30 Days 0% 15%
Printers 30 days 0% 15%
Sports & Recreation 30 Days 0% 15%

All returned products must include original packaging.

Return shipping costs will be paid by the seller for all cases where the product is defective, damaged or incorrect. For other cases (e.g. you changed your mind), you will be responsible for this cost.

To request a return

Please contact the seller directly from your Order details page, and provide the following information:

  • Web ID (8-digit number) & product description
  • Number of items to be returned
  • Date you recieved your product
  • Condition of product
  • Condition of packaging
  • Reason for return

All refunds will be processed within 4 Days