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Nikon Action EX 10x50 CF

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  • Binoculars Nikon Action EX 10x50 CF
  • Binoculars Nikon Action EX 10x50 CF
  • Binoculars Nikon Action EX 10x50 CF
  • Binoculars Nikon Action EX 10x50 CF
Manufacturer data

Manufacturer:

Nikon
web site

Distribution / Sales:

Nikon Polska
web site
Specifications
Manufacturer Nikon
Model Action EX 10x50 CF
Lens diameter [mm] 50
Magnification [x] 10
Angular field of view [deg] 6.5
Linear field of view [m/m] 114/1000
Exit pupil [mm] 5
Eye relief [mm] 17.2
Min. focusing dist. [m] 7
Twilight factor 22.36
Brightness 25
Prisms BaK-4/Porro
Dimensions [mm] 193x184x65
Weight [g] 1020
Waterproof Yes
Nitogen filling Yes
Argon filling No
Image stabilization No
Tripod exit Yes
Focusing central
Warranty [years] 10
Accesories
Price 599
Additional information
Average rating (2 owners reviews)
Build quality
Optical quality
Accesories and usage
Value for money

Overall

3.38 Average
Owners reviews (2)
  1. Peter Tang
    Peter Tang 11 February 2011, 01:08
    Build quality
    Optical quality
    Accesories and usage
    Value for money

    Overall

    IP 81.157.x.x
    Owner since: 2 years
    Price: 150 GPB
    User profile: Amateur

    Cons: Image gets blurred quite soon when going to the edge, yellow image (when comparing to my Vortex viper), rain guard is a bit stiff.

    Pros: Wide FOV with long eye relief, well designed multi-click stop eyecups, comfortable to hold, quality padded case (it doesn't come with a case strap, but I don't mind.)

    Summary: Unlike Mr Telensky above, I use this bino mainly for stargazing. For stargazing you only need to focus the bino once at the beginning (assume you are not going to share the bino with other people), so the slow focus drawback is not really a problem for me. Blurring at the edge is annoying, but it is compensated by the wide FOV. The wider the FOV, the easier to find your way round in the night sky, and having a wider FOV (plus long eye relief - I wear glasses!) is surely more comfortable than narrower ones. This bino is also very easy to be mounted on a tripod - a very useful feature for stargazing. I haven't compared it with other porro 10x50s yet, so I better not comment too much about its optical quality. But having it mounted on a tripod (in my backyard with some light pollution), it can clearly split the double star Albireo, detect M81, M82 galxies, and even M1 the Crab Nebula (well, just...)

  2. Tomas Telensky
    Tomas Telensky 18 December 2010, 11:20
    Build quality
    Optical quality
    Accesories and usage
    Value for money

    Overall

    IP 89.176.x.x
    Owner since: 6 months
    Price: cca 5000 C
    User profile: Semipro

    Cons: The worst is the focus wheel. It is very smooth, but the smoothness is the consequence of the focus being too slow - cca 510 degrees from close focus to infinity! I have to move it 5-6 times to do it! Before you focus, the bird flies away. The chromatic aberation and blur starts quite soon when going from the centre to the edge. It was little irritating while watching low soaring vultures against the sky - there was a chromatic aberation clearly seen at the edge of their wings even if it was quite near to the centre of the FOV.

    Pros: wide FOV (114m/1000m) - even more than high-end binoculars like Swarovski! optics seems to be quite sharp at the centre (for the price) Porro design makes this comfortable in hand (more than many roof prism designs). Eyepiece caps bound to the coord - great thing.

    Summary: Unfortunatelly, the focus wheel renders this binoculars unsuitable for birdwatching. However, the optics quality is good for the price. Especially the FOV is excellent - better than many high-end binoculars; I don't see why they are not making wider FOV - it is better to have an extra peripheral view in compromise quality than not having it at all!! It gives you an overview of the scene and also locating objects is much easier. And finally the wide FOV gives you good feeling of not being in the "tunnel" :-) So I appreciate this.

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