EXCERPT page containing first few paragraphs. 2024-05-11 04:00:19
UA_SEARCH_BOT_compatible_botmozilla/5.0 applewebkit/537.36 (khtml, like gecko; compatible; claudebot/1.0; +claudebot@anthropic.com) @ 52.14.87.152
For full access, subscribe here. Or click title to login.
Examples: Zeiss 25/2.8 Biogon (Forest, NEX-7)
The 25/2.8 Biogon has ray angle of 37.3°, which means it is very likely to see degradation of color and sharpness towards the edges and corners of the frame on the Sony NEX-7. My interest in taking these photos was to assess whether the 25/2.8 Biogon is a viable choice on the Sony NEX-7.
Future sensor designs might make the 25/2.8 Biogon a terrific performer; it’s mainly about the sensor cover glass.
Technical
RAW processing was done in Adobe Camera RAW. Except as noted, minimal processing was done: exposure compensation and white balance to taste.
The notation ~ means “best guess from memory”, e.g., ~f/4; the NEX-7 cannot know or record the actual aperture used.
Article continues for subscribers...
Diglloyd Guide to Leica is by yearly subscription. Subscribe now for about 25 cents a day ($90/year).
BEST DEAL: get full access to ALL 8 PUBLICATIONS for about 75 cents a day!
Diglloyd Guide to LEICA contains in-depth coverage of Leica M system cameras and lenses, with additional coverage of Leica M Monochrom, Leica Q.
Special emphasis is placed on Leica M lenses and certain Zeiss ZM lenses.
- Make better images by learning how to get the best results right away.
- Save money by choosing the right lens for your needs the first time, particularly the Summilux/Summicron/Elmarit choice and/or Zeiss ZM.
- Make better images, a sort of “cheat sheet” saving yourself months or years of ad-hoc learning. Processing parameters are discussed and shown.
- Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to full camera resolution, plus large crops [past 2 years or so].
- Real world examples with insights found nowhere else. Make sharper images just by understanding lens behavior you won’t read about elsewhere.
- Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
- Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.
Want a preview? Click on any page below to see an excerpt as well as extensive blog coverage, for example on Leica.