The logistics of obtaining transmission curves for lenses

[JMC]

Apologies if this has been covered previously, but I did have a quick search and couldn't find what I was looking for. Does anyone have information on the logistics of how to actually test lenses for how much much light they let through as a function of wavelength? I have access to a UV-Vis spectrometer, but is it simply a matter of putting the lens where the cuvette would normally go and seeing how much light gets through during a scan, or is there a dedicated piece of equipment for lens testing? Does the focal length of the lens impact the results (so does it need specialised setting up for different focal lengths)? Etc etc. Looking for guidance really, and ideally some literature on the subject, as a scientist I'd like to test a number of lenses I have access to and see how they compare.

[JCDowdy]

A perennial topic on this forum, my primary contributions may be found here and here.

[JMC]

Brilliant, thank you John.