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See also: optics
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Glossary and further reading..

Digital Sensor Technology

Digital capture technology is discrete, and not the same as film..

Depth of Field

Controlling the zone of sharp detail..

Otus 85mm f/1.4 APO-Planar

Ultra high performance apochromatic medium telephoto, overview and technical..

Depth of Field

[ARCHIVE, see Making Sharp Images]. Exploring depth of field..

Photo Tips

Photography Hints and Tips..

Blog posts, reverse chronological


2024-03-11 Hasselblad X2D 100C: Step Size for its Focus Bracketing Feature


2023-05-12 Voigtlander M 35mm f/2 APO-Lanthar Aperture Series: Cosco Container (Leica M11 Monochrom)

2023-05-11 Voigtlander M 28mm f/2 Ultron Aperture Series: Cosco Container (Leica M11 Monochrom)


2021-03-15 Reader Comment: Fujifilm GFX100S/GFX100 Focus Stepping / Focus Stacking FOCUS BKT Algorithmic Error? Far Too Many Tightly-Focused Frames


2020-03-21 Voigtlander 50mm f/2 APO-Lanthar Aperture Series: Painting of Idyllic Ocean on Burned-Out Van Door (Sony A7R IV)


2017-10-06 Sigma 14mm f/1.8 DG HSM Art Aperture Series: Precocious Cluster of Yellow Aspen Leaves


2015-07-08 Reader Question: Diffraction


2013-07-26 Leica 35mm f/1.4 Summilux-M ASPH: Glacial Erratics and Focus Placement (Leica M Typ 240)


2008-11-11 Tip of the day: Depth of field


2006-10-15 How far to stop down for adequate depth of field?

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