Topic: T-Stops

[Offertonhatter]

I have noticed that the Bronica lenses I have can be switched to T-stop as opposed to F-Stops.
Now I know that T-Stops are preferred in cinematography due to more accurate transmission of the light. But in Stills?

Has anyone who has got a Bronica, or any other camera that can do T-stops, used it instead of F-stops, and if so, what difference did you get?

I am intrigued

[sapata]

I must admit I've never heard about this so I'll be keeping my eyes on this thread...

[LT]

Are you talking about a slider switch that's underneath the lens? If so, that controls the shutter giving a T (for timed) option it enables the shutter to be fixed open for long exposures, and nothing to do with f-stop apertures.

If you are talking about something different, then I have no idea. It's not something that's available on my PS lenses, and isn't mentioned in my Sqai manual.

Confused of Canterbury.

[LT]

Info on t-stops here - http://thephotoletariat.com/f-stops-vs-t-stops-explained/

Now I've read that, I'm convinced you are talking about the T shutter switch. I've never seen a stills camera lens with the option to switch between a standard f-stop scale and a corrected transmission scale.

I suppose you could adjust your self it you know the amount of light absorbed by the lens, but it seems the difference I. Shutter speed required would be smaller than the steps available.

The whole thing can be avoided by effective film speed/ development tests anyway - another good reason to avoid exposing at manufacturers ratings and sending film off to a lab for a generic development time.

[jojonas~]

you mean that lever with the screw? that should be the timed exposure mode leon is talking about.

there's a manual here if you do not have one: http://www.butkus.org/chinon/bronica/bronica_etrs/bronica_etrs.htm

[Francois]

Well, now I know I can go to bed a bit smarter...