EXCERPT page containing first few paragraphs. 2023-02-08 04:52:15
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This aperture series compares the results with image stabilization (IS) versus without across a range of apertures and thus across shutter speed as well.
Shot as follows:
- Lens foot was the Really Right Stuff LCF-53 clamped into an Arca Swiss Cube tripod head with RRS B2 Pro II clamp atop a sturdy RRS TVC-34L tripod.
- Lens and camera positioned near large SUV to further reduce any possibility of air movement (e.g., to block any wind, which was slight, if any).
- Canon Live View Mode II for vibration free shutter release; Canon remote release used; Live View monitored at 10X to watch image go entirely stable before pressing release, but of course there is a “human delay” and there can be no actual knowledge or guarantee that a jiggle did not occur from a slight air movement.
- Each series autofocused at f/4 in 10X Live View; camera set to focus only with the AF-ON button hence only focused once for the 4/5.6/8/11 series.
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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.
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- 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.