Adapted Nikkor 4/300 or APO telescope for birding?

Started Oct 27, 2012 | Discussions thread
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Tomx72
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Adapted Nikkor 4/300 or APO telescope for birding?
Oct 27, 2012

I am in the process of migrating from nikon D7k to m43. A key element of my DX gear is the AFS 4/300 which I use with a 1.7x extender for wildlife shots.

I see there are no serious telephotos for m43 and I thought about 3 alternatives:

1. Pana 100-300: I keep the AF & OIS, but loose some speed

2. I adapt my nikkor 4/300 (no AF and stabilization) - should be great optically and 2 stops faster than the panny

3. I buy a small apochromatic scope, like this one: http://www.teleskop-express.de/shop/product_info.php/language/en/info/p1838_TS-ED-APO-90-500mm-f-5-5---besonders-lichtstark---2-5--Auszug.html

Any thoughts/expreience, which would be the best solution optically?

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