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Binocular eyepiece magnifier - Where can I purchase one? (1 Viewer)

Tvc15_2000

Well-known member
I have read many times how some people are using an eye piece magnifier on their binoculars to get a better idea of the resolution.

Where can I purchase one of these?

Thanks in advance

TVC
 
Kind of expensive, you can use other binoculars as well. Riflescope can be used. I assume you are usiing charts.
http://www.cameralandny.com/optics/vortex.pl?page=vortex2xdoubler

You are correct! I am using this chart
http://www.edmundoptics.com/onlinecatalog/displayproduct.cfm?productid=1852

It’s a coincidence the eyepiece is made by Vortex!

I am evaluating the Vortex Viper 10x28 and Viper 10X32! Trying to find a $350 binocular that performs like a $2000 binocular!

Doubler looks perfect.
http://www.youtube.com/watch?v=igzpaSI-FYY&feature=player_embedded#!

Thanks
T
 
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Hi John, A quick measure of it [misplaced my caliper] is 43 mm inside diameter. I know it fit the Nikon 10x42SE tight enough I didn't worry that much taking the picture post #4.
 
Hi John, A quick measure of it [misplaced my caliper] is 43 mm inside diameter. I know it fit the Nikon 10x42SE tight enough I didn't worry that much taking the picture post #4.

Thanks, Steve. Both my SLCs and FLs have 42 mm eyecups so it should fit.
Better a little too large than too small.

John
 
I have read many times how some people are using an eye piece magnifier on their binoculars to get a better idea of the resolution.

"Eyepiece magnifiers" are just small low power telescopes. The Zeiss Tripler, for instance, is simply the standard Zeiss 3x12 monocular with an adapter. If measuring resolution is your main interest 2X is not enough. Most of the time I use a second small binocular (usually 6-8x), tripod mounted behind the one to be measured.

Edit: I just noticed that the binoculars you are measuring are 10X with small apertures. Depending on your eyesight acuity 20x might be enough for measuring their resolution, which is likely to be around 5 arc seconds at best.
 
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"Eyepiece magnifiers" are just small low power telescopes. The Zeiss Tripler, for instance, is simply the standard Zeiss 3x12 monocular with an adapter. If measuring resolution is your main interest 2X is not enough. Most of the time I use a second small binocular (usually 6-8x), tripod mounted behind the one to be measured.

Edit: I just noticed that the binoculars you are measuring are 10X with small apertures. Depending on your eyesight acuity 20x might be enough for measuring their resolution, which is likely to be around 5 arc seconds at best.

Henry,
Thanks for the tips. If I can get the desired results with another binocular that is all the better and the most cost effective solution. I will give it a try.

T
 
Hi John, I have a Time & Optics catalog from 2006-2007 and they have the Eagle Optics 2 1/2 extender in there, it says will fit up to 44mm diameter so sounds like that one would work for the full size SLC.

Thanks, Steve. Both my SLCs and FLs have 42 mm eyecups so it should fit.
Better a little too large than too small.

John
 
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