Jump to content

NLCbanner2024.jpg.2478be509670e60c2d6efd04834b8b47.jpg

I want this!


Ags

Recommended Posts

Like this. Nice little gadget if you have a decent telephoto or zoom lens to go with it. A lot less pricey than the telephoto / scope hybrid that Kowa does. Though in fairness, costing in a good telephoto lens the Kowa probably works out about a third of the price, so this might actually be a good option for someone wanting a quality telephoto lens who doesn't need AF.

http://www.bestspottingscopereviews.com/KowaTelephotoLensScope-10.htm

 

Link to comment
Share on other sites

Unfortunately the eyepiece is not changeable and the orientation is 45-degree spotting scope, not 90-degree astronomical. I am toying with the idea of combining one of these:

http://www.teleskop-express.de/shop/product_info.php/info/p7835_TS-Optics-Optics-Adapter-for-Canon-EOS-Lenses-to-T2-for-CCD-cameras---with-1-4--photo-thread.html

With a barlow to get extra backfocus and a diagonal and my 9mm speer waler... The neat thing about the above TS adapter is it has a photographic mounting thread. But I'm not sure there would be enough backfocus.

Link to comment
Share on other sites

Still thinking about this. The eyepiece position is just wrong on the Kenko. Also its tripod foot is a bit flimsy according to reports.

 So I am thinking of building something. The focal point of a Canon camera lens is 55mm from the back of the lens. This adaptor takes 19mm of length and provides a metal photographic mounting foot and a T2 thread on the back:

http://www.teleskop-express.de/shop/product_info.php/info/p7835_TS-Optics-Optics-Adapter-for-Canon-EOS-Lenses-to-T2-for-CCD-cameras---with-1-4--photo-thread.html

This adaptor converts T2 to a 1.25 accessory tube:

http://www.teleskop-express.de/shop/product_info.php/info/p7881_TS-Optics-Optics-Adapter-T2-to-1-25----adapts-eyepieces-to-male-T-threads.html

This 2.6x path corrector for binoviewers would screw into the diagonal:

http://www.teleskop-express.de/shop/product_info.php/info/p5806_TS-Optics-Optics-2-6x-Glass-Path-Corrector-for-binoviewers---full-compensation.html

And I already have this cheapo diagonal:

http://www.teleskop-express.de/shop/product_info.php/info/p290_1-25--Star-Diagonal-Mirror---90-.html

I would have 36mm of optical path left after canon mounnt-T2 adaptor, so times 2.6 that gives 93mm for the diagonal etc, so i should be able to reach focus. If I have too much path I can just slide the path corrector back down the drawtube. If I still don't have enough backfocus I can remove the eyepiece holder from the diagonal and the eyepiece barrel from the eyepiece, and mount the eyepiece directly onto the diagonal.

Combining with a 32mm plossl with a 2.6x path corrector (barlow surely?), that would yield 12mm Kenko-equivalent. Assuming EF-S lenses could mount on the canon-T2 adaptor, that would give a scope with 7-20x zoom.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.