Objective diameter: 70 mm
Exit pupil: 7 mm
Eye relief (acc. to spec): 16 mm
Usable eye relief (mesured from folded eyecup): 13mm
IPD: 56 – 72 mm
RFOV: 5.1 degrees = 89 m
AFOV: 51 degrees
Focus type: IF
Prism system: Porro I
Weight (measured, with eyepiece cover and strap): 1‘170 g
Made in: Japan
The red ring around the objective tubes is characteristic for Nikon’s top line of large handheld nature observation Porro binoculars, the “SP” line, consisting of a 7×50, a 10×70 and a 18×70 model. These have been on the market for many years, but due to their excellent performance, they are still the reference point for large Porro binos. One of the few premium binoculars still fully made in Japan.
See further remarks about the difference of Nikon’s “HP” and “SP” models under the separate post: “Nikon 10×70 IF HP WP”.
see also separate posts “Nikon 7×50 IF SP WP” and “Nikon 18×70 IF WP WF”