T-STOP VS F-STOP: WHAT DIFFERENCE?
One of the first things you come across in photography is F-stop (from focal length “focal length”). It, as a measurement of the lens, is an important part of the exposure, like the T-stop (from the English transmission – “transmission”). We suggest you familiarize yourself with the article by professional photographer Gabor Holtzer, in which he explains on the fingers the differences between T-stop and F-stop.
T-stop vs F-stop: what’s the difference?
What does F-stop mean?
Each lens has an entrance pupil. The entrance pupil is that part of the lens where the diaphragm is located (and not the front of the lens). Its diameter is usually slightly less than the diameter of the front glass element. Continue reading