N
Nowhereman
Guest
Sure, most anything can happen but the above two are not issues on the BEOON with the two lenses I tried: from my testing, I had no diffraction with the DR-Summicorn at f/11 used on the BEOON macro setup; and the Focotar 2 doesn't have a diffraction issue at f/8 on the BEOON. As for focus shift, I didn't have it with the DR-Summicorn at f/8 and f/11, nor with the Focotar 2 at f/5.6–f/8. Actually there is extensive literature on the web about the Focotar 2 being a lens without any focus shift (when used as an enlarger lens). See post #143 on page 4 above....focus shift and diffraction upon stopping down...


