this post was submitted on 26 Oct 2023
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Photography

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does full frame has benefits ob shutter speed on equivalent focal length and aperture? (alien.top)
submitted 1 year 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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[โ€“] Parking_Association4@alien.top 1 points 1 year ago (1 children)

what confuses me is aperture diameter in aps-c 23mm f/1.4 is 16 while 35 in f/1.4 is 25. we all know that the bigger the aperture diameter, the more light comes inside the sensor, the more light, means faster shutter speed.

[โ€“] JayEll1969@alien.top 1 points 1 year ago

For the same lens?

The f stop is the relationship to the apparent aperture opening (as looked at through the front of the lens) and the focal length of the lens. This doesn't matter if it is on a crop sensor, full frame sensor, medium format sensor or just sitting on your desk not connected to a camera as looking through the front will always give you the same size for the same fstop.