EXCERPT page containing first few paragraphs. 2019-01-22 10:00:10
UA_SEARCH_BOT_null @ 220.127.116.11
This pair of aperture series looks at performance from f/1.2 through f/5.6. My expectation is for at least two things in a 45mm f/1.2 lens for M4/3 (or any format):
- Symmetric sharpness across the field; the lens will almost certainly be sharpest in the central area and less sharp in peripheral areas, but I expect to see similar sharpness in the outer zones on left and right.
- For a high performance lens, peak performance (or very nearly so), 3 stops down, e.g., f/3.2 for the 45/1.2. But performance should be very strong by 2 stops down e.g., f/2.4. If the lens requires f/4 or f/5.6, this is unacceptable.
Includes up to full-resolution images from f/1.2 through f/5.6.
Kolob Canyons Cliffs
Adobe Camera Raw 10.2.0 (894). View ACR settings. Process=Adobe Version 4.
Article continues for subscribers...
Diglloyd Guide to Mirrorless is by yearly subscription. Subscribe now for about 25 cents a day ($90/year).
BEST DEAL: get full access to ALL 7 PUBLICATIONS for only 68 cents a day ($249.95)!
Diglloyd Guide to Mirrorless offers comprehensive integrated coverage of most APS-C and full frame mirrorless cameras and lenses.
Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.
- Make better images by learning how to get the best results right away. For example, the best way to set up your Sony camera.
- Save money by choosing the right lens for your needs the first time, particularly with the numerous lenses available for Sony.
- Make better images, a sort of “cheat sheet” saving yourself months or years of ad-hoc learning—best practices and how-to and processing parameters are discussed and shown.
- Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to 28 megapixels filling up to 5K display, plus large crops.
- 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 Sony.