Vixen Geoma III ED 80mm Spotting Scope Angled With 20-60x Zoom

ED Lens Suppressing Chromatic Aberration

In optical instruments that gather light using lenses, color bleeding (chromatic aberration) occurs due to the difference in refractive index depending on the wavelength (color) of light. Since chromatic aberration cannot be corrected with a single lens, it is corrected using two or more lenses with different properties. The effectiveness of this correction also varies depending on the material of the lenses used.Therefore, in the objective lens of the GEOMA III ED80 ZOOM, which is composed of two lenses, an ED glass lens (Extra-low Dispersion glass) is adopted as one of the elements. Chromatic aberration is efficiently corrected by combining this ED lens with another lens that has compatible properties.This suppresses chromatic aberration to an extremely high level, achieving remarkably sharp depiction.

High-contrast and clear field of view with PFM5 coating.

PFM5 coating (Perfect Fully 5 Multilayered-Coated) is applied with 5 layers of anti-reflection multi-coating on all optical surfaces of the lenses. Compared to PFM coating (Fully Multi-Coated), which has 3 layers of multi-coating applied to all optical surfaces of the lenses, this results in less light loss. This achieves a brighter field of view and excellent contrast.

20-60x Zoom Lens (Parfocal Specification)

This is a zoom lens specification that allows for stepless magnification changes from 20x to 60x. Additionally, it features a parfocal design, meaning the focus position remains nearly the same even when changing magnification. Once focused, there is almost no need to refocus even when changing the magnification, allowing you to concentrate on observation.

Eyepiece Designed for Ease of Viewing

It features a long eye relief design (eye relief 20-18mm), that allows you to view the field of view comfortably without pressing the eyepiece strongly against your eye,. Furthermore, it utilizes a large diameter eyepiece of 24mm,and employs twist-up eyecups whose height can be changed by turning them with your finger. This design helps reduce eye fatigue even during extended observation. You can view a wide field of view whether you are using it naked-eyed or wearing eyeglasses.

Imaging with Smartphone

A smartphone camera adapter is supplied as standard. It is compatible with most models of commercially available smartphones and camera-equipped mobile phones, allowing you to easily enjoy photography.

Optical Tube Rotation Mechanism

The optical tube can be rotated left and right around the optical axis. This allows the eyepiece (the viewing part) to be moved to an easy-to-view position, and also makes image rotation for photography very smooth.