Zeiss Terra 8×25 ED

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Objective diameter:  25 mm
Magnification:  8 x
Exit pupil: 3.13 mm
Eye relief (acc. to spec): 16 mm
Usable eye relief (measured from rim of eyecup): 15 mm
IPD: 56  – 72 mm
RFOV:  6.8  degrees = 119 m (acc. to spec)
AFOV (according to spoec.):  52 degrees
Minimum focus distance (measured): 1.35 m
Focus type:  CF (direction of rotation from close to infinity: > clockwise)
Degrees of rotation of focus wheel from 3m to infinity (measured): 200 degrees
Extra travel of focus wheel beyond infinity: ca. 6.5 dpt (measured)
Diopter adjustment range: +/- 3 dpt (acc. to spec.), +/- 3.5 dpt (measured)
Diopter adjustment range available after fully using up extra travel of focus wheel: +/- 3.5 dpt
Prism system:  Schmidt-Pechan
Waterproof: yes
Weight (measured, with eyepiece cover and strap): 333 g
Made in: Japan **



The pocket Terra caused quite a surprise when it came out a few years ago. Traditionally, the “Terra” series of binoculars used to be Zeiss’ entry level line of instruments (see separate posts regarding the 8×42 and 8×32 models), but the 8×25 changed that. Priced distinctly above the cheap competitors and about in the middle between budget binos and premium competitors, it provides a bright, well corrected image with excellent central sharpness. There were initially some complaints about mechanical issues (focusing too stiff, hinge too loose, etc.), but that had more to do with Zeiss’ quality control than with anything else. Of course, you wouldn’t expect a performance at the level of the Zeiss Victory 8×25 (see separate post, https://binocular.ch/zeiss-victory-pocket-8×25/), since the Terra is listed at less than half the price of the Victory. Still, Binoculars Today prefers the smallest Terra over some of its more expensive competitors. Originally, the 8×25 was produced in Japan**, unlike the larger Terra models.

see also separate posts
“Zeiss Terra 8×32 ED”, https://binocular.ch/zeiss-terra-8×32-ed/
“Zeiss Terra 8×42 ED”, https://binocular.ch/zeiss-terra-ed-8×42/

** from 2020, production has been shifted to China, in line with all other Terra models.


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