Omegon Argus 20×80

Specifications:

Objective diameter:  80 mm
Magnification:  20 x
Exit pupil: 4 mm
Eye relief (effective, measured from folded-down eyecups): 13.5mm
IPD:  56 – 70 mm
RFOV:  3.3  degrees = 58 m
AFOV (measured, rounded): 65 degrees
Focus type:  IF
Minimum focus distance (measured): 27 m
Range of diopter adjustment (estimate): +/- 5 dpt
Excess focus travel beyond infinity position (estimate): 5 dpt
Prism system:  Porro I
Waterproof: yes
Weight (measured, with eyepiece cover and objective caps): 2‘530 g
Made in: China

Remarks:

Before the APM 20×80 ED APO (see separate post, https://binocular.ch/apm-ms-20×80-ed/) and later 20x instruments featuring ED glass came out, the Omegon Argus was one of the best 20×80 binoculars on the market. Good central sharpness and brightness of the image contrast with mediocre edge sharpness, a smaller sweet spot than the APM, significant CA and a slightly warm color tone. But still a very nice tool on the nightsky!

Ratings:

Review:

see review section of APM MS 20×80 ED,

https://binocular.ch/apm-ms-20×80-ed/