I am just getting around to working with my 12 inch Velostigmat Series II 4.5 lens with the diffusion ring. In trying to find the proper use of the ring I find conflicting results. An old Wollensak catalog says to set the diffusion then focus. I recall reading perhaps in this forum to focus , then set diffusion. I have found that setting diffusion then focusing removes the effect. So I have been focusing, then setting the ring. This is done after the appropriate appeture is set.
Can someone confiirm the proper method? Perhaps I am missing something in my tests and searches.
I love the peachy smoooth results from this lens. I see some people advise to remove the stop screw and go beyond the 5 setting. I have not done this and wonder what the benefits are beyond just more softness?
Thanks
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