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Relative Sharpness and Cones of Light

John Neel

Depth of field is a way to assure a selection of the subjects in an image appears sharp. Depth of field is a cause of aperture function. It has to do with the opening created by the lens iris relative to the subjects in a scene. It has to do with light cones. Light cones are the gathered rays of...

Focus and Aperture Movements with Older Lenses

John Neel

Focus and Aperture Movements with Older Lenses   Mirrorless cameras have become popular partially due to their relatively short distance from the lens mount to the imaging plane. This shortened distance has allowed for the use of a variety of vintage lenses. The distance that was reduced was made...

New Sony Alpha 1 50.1-megapixel

John Neel

New Sony Alpha 1     SONY A1 As released by Sony     New 50.1-megapixel (approx., effective) full-frame stacked Exmor RS CMOS image sensor in combination with an upgraded BIONZ XR imaging processing engine with eight times more processing power Blackout- free continuous shooting at up to 30...

Worldwide Pinhole Photography Day 2021 Poster

John Neel

Worldwide Pinhole Photography Day 2021 Poster Each year for nearly two decades, thousands of people from around the planet have participated in the annual WPPD event. The event is meant to be fun and creative. It brings people together from nearly every nation around the globe. I see it as a tool...

In Frame Out of Frame

John Neel

TeePee – © John Neel         This article is a repost from 2013.   The photographic image captures a segment of what is in front of the camera, but the viewer senses that what is shown is simply a crop of a much larger scenario. The framing of an image is a border of sorts. To a degree, it defines...

Sony Introduces Alpha 7C Camera, World’s Smallest and Lightest Full-frame Camera System

John Neel

As Announced by Sony Please Read – Disclosure Statement   Sony Introduces Alpha 7C Camera, World’s Smallest and Lightest Full-frame Camera System   SAN DIEGO, CA – September 14, 2020 – Today, Sony Electronics Inc. announced several additions to an already impressive imaging lineup — the Alpha 7C...