Photographers often talk about exposure. It is one of the most familiar concepts in photography. But there is another important idea that hides just behind the curtain: the total amount of light that lands on your sensor during an exposure. Understanding the difference between exposure and total light can clarify a lot of confusion about… [Read More]
Diffraction and the Airy disk diameter
The Airy disk is the central bright region of the diffraction pattern produced when a point source of light passes through a circular aperture, such as a camera lens or a telescope objective. It represents the fundamental limit of resolution imposed by diffraction in an optical system with a circular pupil. When light passes through… [Read More]
A Modest Proposal
It is a melancholy object to the informed photographer, when traversing forums, YouTube comment sections, and even certain articles in the photographic press, to behold the frequent complaints of confusion arising from the concept of photographic equivalence. These complaints, sincere and repeated, inform us that equivalence is too complicated for the modern mind, too abstract… [Read More]
Do Raw Developers Use the Embedded JPEG as a Color Reference?
In a recent thread on DPReview, someone made an interesting claim: that some raw developers use the embedded JPEG in raw files as a reference for color. The idea seems to be that the raw converter might read this in-camera-rendered preview to guide or inform its own color processing. That assertion caught my attention, and… [Read More]
Price and Performance: Hasselblad X vs. Fujifilm GFX
In the medium format mirrorless market, Hasselblad’s X system and Fujifilm’s GFX system stand apart as the two primary players. Both offer cameras built around Sony’s 44×33 mm sensors, but with notably different philosophies in design, pricing, and performance. For photographers evaluating where to invest, the question often comes down to this: How do price and… [Read More]
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