Why Cinema Lenses Are Measured With T-Stops And What's the Difference With An F-Stop?
Cinema glass has always been way more expensive than still camera lenses. Combined with the cinema camera sensors these high end lenses provide an image that's far superior to DSLRs capable of recording video. But yet, there are decent films created with DSLRs with still camera lenses. I'm not going to compare the glass quality here. I'm about to talk only about this peculiar T-stop measure on the cinema lenses while still camera lenses have an f-stop. Why should they differ?