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Opticron 8x20 Gallery Scope Macro-Focus Monocular

BH #OP8X20GSM • MFR #30176
5 reviews
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Opticron 8x20 Gallery Scope Macro-Focus Monocular
Key Features
  • Compact and Lightweight
  • BK7 Roof Prism
  • Anti-Reflection Fully Multicoated
  • 12" Macro Focus Capability
Designed with the fine art student in mind, the Opticron 8x20 Gallery Scope Macro-Focus Monocular is an excellent tool for the close-up study of paintings, the macro study of wildlife, and as an easy-to-use field monocular that fits comfortably into your pocket or backpack.
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Opticron Gallery Overview

From Manufacturer

Designed with the fine art student in mind, the Opticron 8x20 Gallery Scope Macro-Focus Monocular is an excellent tool for the close-up study of paintings, the macro study of wildlife, and as an easy-to-use field monocular that fits comfortably into your pocket or backpack.

Optical Performance
  • 8x magnification brings subjects in close for detailed observation
  • 20mm objective lens ensures a compact form factor for easier packing and handling
  • BK7 roof prism light path ensures thin optical tubes to help maintain a slim form factor
  • Anti-reflection fully multicoated optics reduce glare and improves contrast & color rendition
  • Field of view approaches wide angle to produce an immersive observational experience
Macro Focusing
  • Wind out focusing mechanism fully produces a close focus of just 12" (30cm)
  • Exceptional short focus is perfect for detailed inspection of all kinds of flora and fauna
  • Convert the monocular to a 24x microscope using the optional 30259 LED Microstand
Use and Handling
  • Low-profile ridged focus collar
  • Etched graduated focus scale allows easy repeatability
  • Fold-down rubber eyecup for comfortable use with or without eyewear
  • 11mm eye relief
  • 2.5mm exit pupil
Construction Details
  • Made in Japan
  • Lightweight and durable aluminum alloy chassis
  • Gloss black anodized finish
  • Measures just 3.7" long
  • Weighs just 2.5 ounces

Opticron Gallery Specs

Key Specs
Prism Type
Roof (BK7)
Magnification
8x
Objective Lens Diameter
20 mm
Angle of View
7° (Actual)
Field of View
366' @ 1000 yd / 121.5 m @ 1000 m
Exit Pupil Diameter
2.5 mm
Prism Type
Roof (BK7)
Performance
Magnification
8x
Objective Lens Diameter
20 mm
Angle of View
7° (Actual)
Field of View
366' @ 1000 yd / 121.5 m @ 1000 m
Minimum Focus Distance
12" / 30.5 cm
Exit Pupil Diameter
2.5 mm
Eye Relief
11 mm
Diopter Adjustment
Yes
Features
Fogproof
No
General
Dimensions
3.7 x 1.3 x 1.2" / 94 x 33 x 30.5 mm
Weight
2.5 oz / 71 g
Packaging Info
Package Weight
0.255 lb
Box Dimensions (LxWxH)
5.1 x 2.3 x 2.2"

Opticron Gallery Reviews

Unique product, tiny but with great optics

By Anton
Rated 5 out of 5
Date: 2026-01-30

As a frequent hiker and traveler, I like to have a way to spot distant subjects, but am always looking to minimize weight and bulk. I already have a monocular, but found myself often leaving it behind to save precious ounces and space in my backpack. I took a chance on this Opticron ("Made in Japan" was definitely an incentive) and it turned out to be nearly perfect. It produces a very crisp image edge to edge with a fairly wide angle of view. It is sharp both at distance and close up. I was worried it would be more optimized for closer distances, but that is not the case with my copy. Because it has a metal body, it has a nice quality feel and focuses easily and smoothly even in cold weather while wearing gloves. The close up capabilities are rather fascinating, and this will be very useful when traveling to tourist attractions or museums where I often have trouble reading the interpretive signs. I like that it has little caps to protect the ends, as well as a provided case. The reason it's not perfect is there is no weather sealing, and I will not be using this in rain or wind-driven snow. As such, I keep it in a Ziploc bag at all times. However, I was aware of this limitation before making the purchase, and understand the intended use of the product is not for all sorts of outdoor conditions, hence the perfect rating. The most important factor is that this monocular has not left my backpack since I received it, so I consider that a successful purchase in my case. I am glad B&H offers these rather unique niche products.

Sweet little monocular for taking everywhere

By Laurel
Rated 5 out of 5
Date: 2024-05-01

I thought this might be a frivolous purchase, but I've found it to be incredibly handy. It is light and small and easily fits into my pack pocket. Great for seeing details on birds and for looking at textures up close. The optics are super clear. I'm afraid I will lose the lens caps, but otherwise, this is a great tool for anyone who likes to travel light. Love it.

See any errors on this page?

Is there a diopter adjustment for personalizing ...

Is there a diopter adjustment for personalizing the focus?
Asked by: Martin
Yes the Opticron 8x20 Gallery Scope Macro-Focus Monocular has a diopter adjustment.
Answered by: Dan W
Date published: 2025-08-14
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