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.
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.
100iso on full frame does not equal 100iso on aps-c. The numbers are the same but the actual amplification on iso is not transferable across cameras.
You can see this by looking at noise of the same ISO number on different size sensors, there would be more noise on smaller sensors.
https://photographylife.com/equivalence-also-includes-aperture-and-iso#iso-and-equivalence