Constant vs variable aperture zooms

Started 7 months ago | Discussions thread
brightcolours Forum Pro • Posts: 14,447
Re: Nonsense.

petrochemist wrote:

brightcolours wrote:

Transmission is described in T-stops, not F-stops.

Optical Transmission is usually described as a percentage. It's a term used widely outside of photography, I believe it originates in spectroscopy.

T-stops correct for lens transmission, but are not actually giving the transmission itself, while f-stops ignore transmission all together.

thanks for correcting my faulty formulation.

F-stops are more useful in still photography where DOF is important, while T-stops are normally only used in motion where a change in brightness would be noticeable.

Even at my most pedantic I couldn't fault your other points!

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