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T-Stops
Mar 28, 2021 17:22:22   #
Rongnongno Loc: FL
 
While doing research I stumbled onto this term, and it seems to be more of a video issue than camera.

F-Stop = Focal length Stop (Theoretical value)
T-Stop =Tested stop (tested value}

In what I was reading the difference the two is small and not worth testing for still cameras, but it is for video cameras. Since I assume, perhaps wrongly, that you use your still camera body option to shoot videos, are you using this "T-Stop"?

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Mar 31, 2021 16:30:24   #
Bobspez Loc: Southern NJ, USA
 
I believe cine lenses have t-stops rather than f-stops. In a professional shoot it could matter because you want to be able to achieve the same exposure with different lenses. If you are just using one lens, it shouldn't matter.

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Mar 31, 2021 16:37:57   #
Rongnongno Loc: FL
 
Thank you.

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Apr 7, 2021 03:16:09   #
GreenReaper
 
Rongnongno wrote:
While doing research I stumbled onto this term, and it seems to be more of a video issue than camera.

F-Stop = Focal length Stop (Theoretical value)
T-Stop =Tested stop (tested value}

In what I was reading the difference the two is small and not worth testing for still cameras, but it is for video cameras. Since I assume, perhaps wrongly, that you use your still camera body option to shoot videos, are you using this "T-Stop"?

Wow! Haven’t seen a T-stop lens since I was in the Air Force! We had them for our mopic cameras and that was WAY BACK in the late 60’s!

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Video for DSLR and Point and Shoot Cameras
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