MR-Telyt 500 f/8

[gdb]

Advertisement (gone after registration)

I just ran across a mirror TELYT in absolutely perfect condition, with box, leather case and filters. Obviously a lens that did not go out of its box very often. For 700 €, I took the risk to keep it.

 

I noticed that it is difficult to make good exposures on the R9/DMR, except by guess and try method by changing the speed in "manual", since the aperture is fixed. So my question is: would it be useful to have this lens "ROM-ed" and is it technically possible?

 

Thanks for the information

 

Gérard

[spydrxx]

My understanding of the "ROM" process is that it would do nothing to facilitate your exposure issue, merely provide info for flash purposes. I've used 500mm mirror catadioptric lenses for years without problems. Most have lower contrast than their glass lens equivalents, there is the fixed aperture, and then the issue of "donut" shaped highlights. When used on many SLRs & DSLRs you can use the Aperture Preferred metering method or Manual (or independently hand meter). I mention the last, because many serious users find that the stated aperture isn't always accurate...sometimes off by as much as 1.5 f stops. So, you may want to test that out. I had a Canon one which was really about f11, but a Tamron which was sharp, contrasty and right on the button at f8. It has been my experience that no matter what the manufacturer says, in order to get decent pictures you need a tripod. Lastly, the donut highlights can be minimized by judicious lighting decisions and composition.