Hi,
I bought a Celestron Mak C90 spotting scope essentially for birds. Here are my first real world pictures. I forgot to shut down "Anti Shake" which may make sharpness a little worse. The images are shot on full frame and slightly cropped. Capture sharpening is rather strong.
The "lens" is hard to use, but a cheap way to have a very long lens (around 300 USD). Focal length is said to be 1250 mm but it seems more than that to me, more like 1500-1700.
The lens is also quite soft. On the positive side it can be used as a spotting scope. Weight is about 2.1 kg (assembled) size like my 400/4.5 APO (from Minolta) with 1.4x converter.
This type of lens is used for photography using a "photo adapter" screwed into the end of the optical tube and "T2" adapter between the camera and that tube. The original Celestron T2 adapter was a bad design I throw it away (after trying to fix it) and bought one from Soligor instead, that one is OK.
http://www.pbase.com/ekr/celestron_mak_c90Makers info:
http://www.celestron.com/c3/product.php?Ca...&ProdID=203The enclosed picture may give an impression of the resolution. Celestron to the left Minolta 400/4.5 APO + 1.4X extender to the right (3:1)
[attachment=13642:560_vs_Mak90.jpg]
Best regards
Erik