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Why our reviews don't measure transittance or T stop ?
#13
Some manufacturers are cheating more than others when it comes to the aperture and there may be minor differences in the kind and amount of coating.
The focal length is also not the same as the one that is printed on the lens. Neither is the ISO rating on the camera.
But then ... who cares? Is that really something that you think about when shooting? I, for one, don't. Life's too short for that.
Chief Editor - opticallimits.com

Doing all things Canon, MFT, Sony and Fuji
  


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RE: Why our reviews don't measure transittance or T stop ? - by Klaus - 02-14-2020, 09:15 PM

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