Pages: [1]   Go Down

Author Topic: zeiss 21mm for Sony A7  (Read 2275 times)

kengai

  • Newbie
  • *
  • Offline Offline
  • Posts: 24
zeiss 21mm for Sony A7
« on: July 07, 2014, 06:10:59 am »

Distagon or Biogon: which is the best choice?
Logged

ErikKaffehr

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 11311
    • Echophoto
Re: zeiss 21mm for Sony A7
« Reply #1 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

Distagon or Biogon: which is the best choice?
Logged
Erik Kaffehr
 

Telecaster

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 3686
Re: zeiss 21mm for Sony A7
« Reply #2 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-
Logged

ErikKaffehr

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 11311
    • Echophoto
Re: zeiss 21mm for Sony A7
« Reply #3 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
Logged
Erik Kaffehr
 
Pages: [1]   Go Up