EXCERPT page containing first few paragraphs. 2018-05-23 21:30:07
UA_SEARCH_BOT_null @ 22.214.171.124
This series assesses the Fujifilm GF 63mm f/2.8 at relatively close range on a subject whose key details are in the central half of the frame.
Prelude with regards to optimal focus:
The precision of a measurement system, related to reproducibility and repeatability, is the degree to which repeated measurements under unchanged conditions show the same results. A measurement system can be accurate but not precise, precise but not accurate, neither, or both. High precision is what matters for digital cameras—very low variability—since that allows for focus adjustments.
Focusing protocol = refocusing for each aperture as per my focusing protocol discussion.
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.