Photography

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A place to politely discuss the tools, technique and culture of photography.

This is not a good place to simply share cool photos/videos or promote your own work and projects, but rather a place to discuss photography as an art and post things that would be of interest to other photographers.

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communick@viewfinder.pro

does full frame has benefits ob shutter speed on equivalent focal length and aperture? (alien.top)

submitted 11 months ago by Parking_Association4@alien.top to c/photography@viewfinder.pro

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it is said that full frame aperture equivalent of 2.8 to aps-c is 4.2. does it mean that shutter speed of aps-c is one stop slower that full frame on the same aperture? given the same focal length equivalent e.g. aps-c 23mm and ff 35mm.

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[–] oldlurker114@alien.top 1 points 10 months ago

Well, I simply wanted to clarify what you presented in a way which seemed to me to be causing more confustion to OP in this context than necessary.

Basically this was the problem for me:

don't forget that focal length also affects light transmission. A longer focal length gathers light from a smaller area of the scene and therefore less light than a shorter focal length.

In the context of format comparison, it can get confusing to the OP as in this context the focal lengths collect light from the same area of the scene, not different.

Thus, it answers OP's real question about why exposure isn't changing even when the entrance pupil diameter changes

We interpreted OP's question differently. Not saying either interpretion is better or worse.