I just got a RH-10 Back for my baby Crown, and have tried Velvia and Ilford Pan F. Film flatness is horrible with either, requiring f:32 to achieve sharpness over the entire negative (105mm Ektar). Is there any roll film, either B&W or color, that works best in this holder? Also, do Mamiya RB-67 holders fit a Graflock back, and how good are they for film flatness. TIA Mitch.

-- Bill Mitchell (bmitch@home.com), October 05, 2000

Answers

First of all, carefully check to be sure parts and pieces aren't slopping around; that's no uncommon. I have an otherwise-clean RH-10 that has wiggly guts, but after trying another non-wiggly RH-10 I concluded that it really wasn't worth fooling with.

RB backs should fit ok.

I use a Horseman 6x7 holder ($189 mint used from KEH) and it's working great.

-- John Hicks (jbh@magicnet.net), October 06, 2000.

RB-67 holders fit perfectly, hold the film flat, and seem to last forever. The RH Graflex holders did not have a long service life under heavy use. As a wedding photographer, I wore them out in 3 or 4 years before I discovered the better RB67 holders.

-- C. W. Dean (cwdean@erols.com), October 06, 2000.

I have not had much trouble with film flatness in my RH-10's using FP4+, HP5+ and Fuji/Agfa print films. I suspect it is more an issue of variability with the holders than the film.

-- John Lehman (al7jj@yahoo.com), October 06, 2000.