Luminous Landscape Forum

Equipment & Techniques => Cameras, Lenses and Shooting gear => Topic started by: kengai on July 07, 2014, 06:10:59 am

Title: zeiss 21mm for Sony A7
Post by: kengai on July 07, 2014, 06:10:59 am

Distagon or Biogon: which is the best choice?

Title: Re: zeiss 21mm for Sony A7
Post by: ErikKaffehr on July 07, 2014, 07:01:39 am

Distagon is good choice, Biogon is bad choice. While? Biogon has large beam angle.

Best regards
Erik

Quote from: kengai on July 07, 2014, 06:10:59 am

Distagon or Biogon: which is the best choice?

Title: Re: zeiss 21mm for Sony A7
Post by: Telecaster on July 08, 2014, 12:44:44 am

What Erik said. The M-mount Biogon (I own one) is a lovely lens on an M camera but pretty dreadful on a Sony A7(r). Smeared corners, magenta color cast near the frame edges...yuck! You can clean up some of this with tools like CornerFix, but IMO it's better to just use a more suitable lens.

-Dave-

Title: Re: zeiss 21mm for Sony A7
Post by: ErikKaffehr on July 08, 2014, 01:39:49 am

Hi,

Here is some good info from lens rentals, a bit technical but interesting nevertheless.

http://www.lensrentals.com/blog/2014/07/sensor-stack-thickness-part-iii-the-summary

Best regards
Erik