Is the Optar 135mm f/4.7 cut out for Velvia?

[E. von Hoegh]

... not to mention tripod jitter and/or heartbeats, caffeine jitter, or other types of nervous tremors (if hand-holding).

Then there's the alien fuzz-ray, and sometimes a zombie jostles me.

[Ivan J. Eberle]

The Wollensak Optars are identical to Raptars. They're single magnesium-fluoride hard- coated Tessars not particularly prone to flare. Like most Tessars they'e wicked sharp and contrasty by f/16 and equal to just about anything at f/22. Handheld at f/8 they were adequate for newsprint--millions of images in print attest to this.
That 50+ year old Wolly shutter may not be accurate to the stated speeds but if CLA'd it will likely be consistent to 1/3 stop or even better. If gunked-up you may have a box of over-exposed Velvia. You could do a test of one or several sheets and pull-process the remainder...

[Robert Ellis]

Thanks for all the replies, everyone! I look forward to shooting some more with this lens soon.

[Lynn Jones]

To the best of my recolection, the Optar was made similarly to be the equivalent of the the Ektar and the Raptar. I believe that they were made by Wollensak with the Graflex name on it.

Lynn