www.astrocafe.hk

若想找專科拍星野的鏡頭，可以留意一下這枝了

"The best 50mm lens ever made?"

http://www.hutech.com/file/skynews.pdf

https://digiborg.wordpress.com/2015/02/ ... -art-lens/

I paid attention to this lens sometimes ago. It is on my wish list already.
See how it is compared with Zeiss Otus 1.4/55
http://www.dpreview.com/reviews/lens-co ... 50&av2=1.4

good info.

this may be a good lens to work with cooled CCD cameras also.