I've always found grid screens most hopeful in regard to keeping the horizon and the verticals straight when desired. With a four grid screen, you get a center vertical. Paul -------------- Original message ---------------------- From: Adam Maas <[EMAIL PROTECTED]> > Igor Roshchin wrote: > > Hello everybody! > > > > What is the purpose of the LI-60 (LI-80 for the K10D) - > > "AF Scale Matte"? > > That is - what is the use of such scale and what is its origin? > > This is for Macro work, it allows one to measure the actual reproduction > ratio > of an item (with a little initial math and a known reproduction rate selected > on > the lens). > > > > > > Also, what would be the rationale for the 4x4 grid on LL-80? > > I understand 3x3 (golden rule), but 4x4? > > That's an odd one, 3x3 would indeed make more sense. > > > > > Links for the screens information: > > http://www.cameramentor.com/images/Pentax_DSLR_Focusing_Screen.pdf > > http://ok1000.blogspot.com/2006/11/new-pentax-accesories-pentax-ccd.html > > > > Igor > > > > > > -Adam > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net
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