EXCERPT page containing first few paragraphs. 2021-12-02 19:27:36
UA_SEARCH_BOT_null @ 184.108.40.206
The Sigma 180mm f/2.8 APO Macro DG HSM goes to 1:1 natively, allowing enough working distance over shorter macro lenses that natural illumination is still feasible.
This series is at 1:1. The lens was racked to its minimum focusing distance, the moved into focus and a final very small focus adjustment made. The eyes of the doll were rotated so that the iris of each was cut through by the plane of focus.
Depth of field is extremely limited at high magnifications, so the right questions might be:
- How well does sharpness hold up with stopping down?
- How far should one stop down?
- Are chromatic errors well controlled?
At this range, maximum aperture (wide open) is f/5, as indicated by the Nikon D800E. This is a strong argument for an f/2.8 lens (as compared to an f/4 lens).
Article continues for subscribers...
Diglloyd Advanced DSLR is by yearly subscription. Subscribe now for about 16 cents a day ($60/year).
BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!
Diglloyd DAP is DSLR-oriented, but also contains workflow and other topics. Much of the focus is on Canon and Nikon but also Pentax and Pentax medium format.
Special emphasis is placed on lens evaluation, focusing on Canon and Nikon and Sigma lenses, but with a few others like Rokinon/Samyang.
- 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 some of the new Sigma Art lenses vs Nikon and Canon.
- Workflow discusses image organization, raw conversion and post processing. Many examples show processing parameters for direct insight into how the image was converted.
- 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.