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  1. koshkin

    Rifle Scopes New for 2025, the Kahles K540i

    I am sure I mentioned it some point during one of the "explanations" videos, but I do not think I have ever done anything dedicated to that. I probably should, but the basic problem is that the whole eyebox business is kinda "non-linear". There are general guidelines/considerations, but they...
  2. koshkin

    Rifle Scopes New for 2025, the Kahles K540i

    Generally, wider AFOV eyepieces are a little bit harder to make with good eyebox. Narrower FOV makes it easier to achieve a good eyebox. Some of that can be mitigated by clever design (RG3 is a good example of that). Kahles’ wide angle eyepiece seems to have decent eyebox. Not exceptional...
  3. koshkin

    Rifle Scopes New for 2025, the Kahles K540i

    No that is not an optical fact. I have seen people make this argument before. It is usually some sort of a lazy derivation of the Rayleigh limit. That would apply if you are looking to resolve two very distant point sources (Rayleigh was an astronomer). When dealing with complex objects and...
  4. koshkin

    FOV issues and patents

    Leica is one of the three oldest optics/camera companies in the world. In the photo and video world, they are easily one of the most recognizable name out there. Same goes for their binoculars to a good degree. With riflescopes, they have never been big and that's a shame. With photo and...
  5. koshkin

    Rifle Scopes Meopta 2025. Big things comeing

    Meopta is on my SHOT schedule. They have new people in charge who I do not know. I am curious about their plans. ILya
  6. koshkin

    FOV issues and patents

    Leica Magnus was pulled from the US market because of slow sales. It had nothing to do with patents. After the European lawsuits, it seems like Leica and Swarovski decided that they have had enough lawsuits and Leica can sell anything they wan tin the US if they are so inclined. I was very...
  7. koshkin

    FOV issues and patents

    Where a scope is manufactured makes no difference. It only matters where it is sold. In Europe, Swaro's patent has been nullified. In the US, it has not been challenged. If anyone wants to sell a wide FOV FFP scope in the US, they do not need to challenge the patent. They can just go to...
  8. koshkin

    Rifle Scopes Question regarding NF beast 5-25

    BEAST was, in many ways, a very influential design. That scope itself did not a ton commercially, but it spawned off several very successful ideas. It was very innovative in its own right. MOA does ruin it a bit. ILya
  9. koshkin

    Tract Toric 1-8

    These are very well bult scopes along the lines of the rest of the Toric line. If you do not need day bright illumination, it is a very good option. For ARs, it has more eyerelief than I would prefer, which result in narrower FOV (relatively speaking), but beyond that I do not have anything...
  10. koshkin

    Steiner C35 Gen 2 - Initial range trips and first hunt - Updated 9/30 with third hunt

    Still at the machine shop.
  11. koshkin

    Question about member regarding optics reviews

    It is a very oddball German company. A couple that I have seen were decent, but unless you need a particular look, I would seek elsewhere. I think Charles from Darn Fine Shot brings them in. If you need a German 4x, they might be the only game in town these days. If you can live with a...
  12. koshkin

    Steiner C35 Gen 2 - Initial range trips and first hunt - Updated 9/30 with third hunt

    It is in manufacturing
  13. koshkin

    Rifle Scopes SWFA Teasing Announcement?

    Original 10x42 was always Kenko. 10x42hd was LOW. ILya
  14. koshkin

    SWFA ultra-light 2.5-10

    Don't be in too much of a rush to count the "fails". ILya
  15. koshkin

    Do you run a SunShade and why or why not.

    I've used black opaque optical paper for this when trying to figure out what sunshade length is optimal. It is not especially durable, but it works.
  16. koshkin

    LPVO + Dot question

    I have their 1.5-15x42. The 1-10x went back to March. ILya
  17. koshkin

    New Kahles K328i

    Did you learn that language in Sunday school? It was thoroughly enjoyable. ILya
  18. koshkin

    LPVO + Dot question

    .mil world seems to have really taken a liking to the 6ARC and I expect that to stick for a bit. Even with relatively short barrels there is a real drift and lethality advantage with it. That having been said, some of the interesting 5.5 developments I see with at least two manufacturers will...
  19. koshkin

    Mounts - Gray Ops vs Area 419

    I have not, so I do not have any strong opinions on them. I somewhat prefer how Area419 did the accessory mounts and the single long clamp bar on the Grey Ops is generally not ideal. People seem to like it aesthetically, but you can end up with some crosstalk between screws. No personal...
  20. koshkin

    Mounts - Gray Ops vs Area 419

    I have two of them and they work exceptionally well. There are some marks on the tube of the scope, but they seem to clean up with acetone. In terms of zero retention and tube contact, they are excellent. As good as or better than anything else I have seen. I'll be doing a livestream tonight...
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