EXCERPT page containing first few paragraphs. 2019-03-24 15:26:22
UA_SEARCH_BOT_null @ 22.214.171.124
To its credit, the 645D provides focus confirmation in the viewfinder with any lens (“focus assist”).
Yet with all the lenses I’ve tried, focusing by eye is usually more accurate.
The example shown here is typical (definitely not single case!), showing that autofocus assist is not really very usable except as a feel good feature Perhaps with AF fine focus adjust, behavior can be made useful (not yet tested).
Click to view the actual pixels crop, which shows that focus is at least 30 feet in front of the tree. Stopping down to f/8 would not save this image (if the intent were a sharp tree). I tried many other subjects, some in the sun, some in the shade, etc. Front-focus is a consistent problem.
Article continues for subscribers...
Diglloyd Medium Format is by yearly subscription. Subscribe now for about 27 cents a day ($100/year).
BEST DEAL: get full access to ALL 7 PUBLICATIONS for only 68 cents a day ($249.95)!
These systems are hugely expensive, so make the right choice for your own needs (full frame vs medium format).
- In-depth lens evaluations covering behaviors not likely to be found anywhere else, based on real-world field shooting.
- How to configure menus and buttons and best operating practices, gotchas and how-to.
- Real world examples with insights found nowhere else. Make sharper images just by understanding lens and camera behaviors.
- Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to 28 megapixels filling up to 5K display, plus large crops.
- 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.