F90x doesn't have a 100% finder, nor do any Pentax SLR's. So you can't check for vignetting that way (As the fresnel on the focusing screen reduces apparent vignetting). I've only found 100% finders to show anything approaching an accurate display of vignetting (found that out the hard way with a 24mm and a Nikon hood which came with it, the hood was for a 35mm but not apparent on the F90x I had at the time).
-Adam David J Brooks wrote: > Jaume > > I shot several shots with a F90X and my Sigma 10-20 for dslr. > > I saw no vignetting in the finder, but quite noticable on the contact sheet. > > Dave > > Quoting Jaume Lahuerta <[EMAIL PROTECTED]>: > >> Godfrey, >> >> Do you have a film camera available to check if you can see any >> vignetting? (at least in the viewfinder). >> I've heard that the DA40 doesn't show any... >> >> Thanks, >> Jaume >> >> ----- Mensaje original ---- >> De: Godfrey DiGiorgi <[EMAIL PROTECTED]> >> Para: PDML List <[email protected]>; DUG <[EMAIL PROTECTED]> >> Enviado: martes, 16 de enero, 2007 22:26:29 >> Asunto: Pentax DA70 lens has arrived ... >> >> As mentioned the other day, I sold the FA77 lens and made way for the >> new DA70. It just arrived a half hour ago. >> >> A tidy, compact lens, a little smaller/lighter than the FA77. It >> comes with a collapsible metal lens hood and the usual (for Limiteds) >> slip-off lens cap. Ugh, I hate those things ... slide out hoods and >> slip-off caps drive me nutty. Happily, I didn't sell the B+W 49mm >> screw-in metal, telephoto lens hood I used with the FA77. It's a >> little deeper than the stock lens hood: I did a few vignetting tests >> and found none, so that's what I'll use on this one too. I have a few >> cheap plastic, clip-on 49mm lens caps too. The Pentax bits will just >> stay in the box with the pouch. >> >> The Quickshift focusing mount is wonderful. I like the slightly >> shorter focal length .. it's more useful to me. The lighter weight, >> smaller size and Quickshift mount compensates for that 0.7 stop >> decrease in lens speed. I noticed in my vignetting tests that there's >> a little falloff at the corners of the frame wide open, cleans up >> nicely when stopped down a bit. The finish is on par with the FA77, >> FA31 and DA21 Limiteds. >> >> A very nice lens indeed. Now to go take some photographs. >> >> Godfrey >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> >> >> >> >> >> >> ______________________________________________ >> LLama Gratis a cualquier PC del Mundo. >> Llamadas a fijos y móviles desde 1 céntimo por minuto. >> http://es.voice.yahoo.com >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> > > > > Equine Photography in York Region > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net

