Fujinon 16×70 FMT-SX2


Objective diameter:  70 mm
Magnification:  16 x
Exit pupil: 4.4 mm
Eye relief (acc. to spec): 16 mm
Usable eye relief (mesured from rim of eyecup): 10 mm
IPD:  56 – 74 mm
RFOV:  4.0  degrees = 70 m
AFOV (measured, rounded):   62 degrees
Focus type:  IF
Minimum focus distance (measured): 26.5 m
Range of diopter adjustment (estimate): +/- 6 dpt
Prism system:  Porro I
Waterproof: yes
Weight (measured, with eyepiece cover and strap): 2‘118 g
Made in: Japan



Almost as famous among hobby astronomers as the Fujinon 10×50 FMT-SX2, the 16×70 was for many years the large binocular of choice, unless you wanted even better and could afford the Nikon 18×70 (see separate post, https://binocular.ch/nikon-18×70-if-wp-wf/. In recent years, more models of size 16×70 or 16×80 have come onto the market, almost all made in China. The best ones now feature ED (extra low dispersion) glass and, while cheaper, outperform the Fujinon 16×70 in terms of CA correction; the Fujinon, which does not feature ED glass,  does show a bit of color fringes, but is otherwise still a wonderful instrument in the hands of an amateur astronomer or for long range daytime observations.

See the smaller 7×50 and 10×50 models, as well as the 10×70 model, in separate posts https://binocular.ch/fujinon-10×50-fmt-sx2/ and  https://binocular.ch/fujinon-7×50-fmt-sx2/ and https://binocular.ch/fujinon-10×70-fmt-sx2/ .



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