They came with the large felt lined Nikon case and front caps.
I believe they are approximately 15 years old.
I cannot understate the optical and build quality of these binoculars.
â€˜Almostâ€™ sharp to the edge, a primarily flat field, no obvious CA and stars are a fine pin point on axis. There are no obvious internal reflections or flaring even on bright objects. The image is bright and displays excellent resolution, contrast and color fidelity.
With very critical day time observation very minor pin cushioning and field curvature is observed.
There is no obvious roller ball effect when panning.
To clarify the edge sharpness and internal reflections more critically with the Nikonâ€™s I can detect mild deterioration from approx 85-90 % out and even then the image is still useable. This is superior to the 35 + odd medium to high end binoculars I have. [I am aware this is a â€˜generalisationâ€™ but it is indicative of there optical clarity].
The only one equal in edge performance would be my Japanese Swift 7x50 WP 7.1 degree â€˜Sea Kingsâ€™.
The Nikons 10x70â€™s are also superior to my Oberwerk F.M.C. Ultra 10x50 and Nikon F.M.C 10x56 Monarch phase coated roof binoculars when minimising internal reflections on bright objects.
Aberrations really are at a minimum with these Nikonâ€™s - as to be expected in Hi-quality 5.1 degree 10x70 binoculars.
They are comfortable to use. They are â€˜relativelyâ€™ easy to hold at 1.9 Kgs [68 oz]. The lens has a deep blue. They are Multi coated on all lens and prisms. They are Bak- 4 prisms and â€˜Oâ€™ ring sealed with nitrogen. The F.O.V. is 5.1 degrees.
The Afov is a non wide 51 degrees but this never felt restricted as the F.O.V. was primarily all usable
There is no obvious prism cut off. They are no white reflections looking down the objectives. The IPD is 56-72mm. The E.R. is a â€˜mediumâ€™ 15mm. The â€˜HPâ€™ refers to â€˜High-eye pointâ€™ design.
The close focusing distance is 50 mtrs. / 160 ft. These are not birding binoculars.
The I.F. is firm and precise. Once the I.F. is â€˜setâ€™ I did not need to adjust them for astronomical or terrestrial viewing.
The depth of field is excellent.
They feel solid and robust. The build quality is excellent.
They look like classic large black porro prism design astronomical binoculars.
They came with the large Nikon winged eyecups but I exchanged them for some shorter soft rubber versions which give me a more comfortable full field of view image.
In fact if there is one criticism of these binoculars it is that the Nikon winged eye cups vignette the view significantly and they are not particularly comfortable.
The exit pupil is 7 mm which can be an issue - however in New Zealand we do get very dark pollution free skies.
My dark sky pupils measure 6.5 mm. [Via metric Allen wrench set test at night].
Scanning the area around Scorpion and Sagittitarius reveals a wealth of detail with the bright star fields.
Other spectacular southern binocular sights include â€“ the Smaller and Larger Megellanic clouds - both companion galaxies to ours, 47 Tucane - a spectacular globular star cluster near the SMC, and the â€˜Jewel Boxâ€™ near the Crux [Southern Cross] - a star cluster with many contrasting colors.
Even when using in semi suburban skies I never noticed any obvious â€˜washed outâ€™ effect or any major deterioration in contrast.
In mag. 4.5 -5.0 skies I resolved slightly more stars in M6 and M7 with the 10x70 Nikonâ€™s then with my Oberwerk 10x50 Ultras which have a more â€˜appropriateâ€™ 5mm exit pupil for those seeing conditions.
This is a brief review as there is actually not a lot to fault with these Nikon 10x70 IF HP WP binoculars in fact they are a joy to use.
There was no buyerâ€™s remorse with these binoculars.
They have that heirloom quality to them.
The Nikon 10x70 IF HP WP is obviously a highly recommended hand hold able astronomical binocular especially if you have the advantage of young eyes or dark skies and you are looking for high quality life long astronomical binocular.
Keep looking â€“ affordable gems like these do turn up.
Chris from New Zealand