Correction lens on rifle rear sight

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JiriK
Posts: 157
Joined: Tue Dec 27, 2011 10:17 pm
Location: Turku, Finland

Correction lens on rifle rear sight

Post by JiriK »

I read the new ISSF rules. Using single correcting lens mounted on the rear sight of a rifle is allowed.

So I started drawing mounting attachments so I could mount the lens and it´s holder (Knobloch) to my rifles.
Plan is to make 3D models of the mounting rings and let my friend 3D print them.

Correction I use is approx. +3 (Don´t remember exact values)
Does it matter, how far from aperture the lens is mounted?
Pheyden
Posts: 143
Joined: Wed Dec 17, 2014 4:26 am

Re: Correction lens on rifle rear sight

Post by Pheyden »

I would place the lens 40-70 mm from the iris orifice. The eye should then be 15-20mm from the other side of the lens.
Martin Catley
Posts: 170
Joined: Wed Dec 22, 2004 4:19 am
Location: New Zealand
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Re: Correction lens on rifle rear sight

Post by Martin Catley »

Have you looked at the Anschutz one, very simple and you can adjust the distance from the Peep? May not take your Knoblock lense though, would need cutting to size.
JiriK
Posts: 157
Joined: Tue Dec 27, 2011 10:17 pm
Location: Turku, Finland

Re: Correction lens on rifle rear sight

Post by JiriK »

Thanks, I have seen that Anschutz (or something similar) being used here. I have something similar to that in mind, if the 3D print doesn´t work.
Attachments
lens2.jpg
Lens1.jpg
Pheyden
Posts: 143
Joined: Wed Dec 17, 2014 4:26 am

Re: Correction lens on rifle rear sight

Post by Pheyden »

MEC glas Monocle

This is what I am using. I simply transferred the lens from my glasses, as it was the same diameter. In fact I could have simply used the holder as well, only having to re-index the actual lens.
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