RB 6x8 Back on RZ67 ProII

[nick mulder]

Out of interest how do/did you frame for 6x8 on a RB anyway ? - on the RZ you wont see any vignette until you develop or I guess put a GG on the film plane to see

[kauffman v36]

i have no idea, ive never own or used an RB with the 6x8 back. but there is an auction on ebay for it that says it comes with a focusing screen for the 6x8. i just dont know. and i wont know what the extra 1 cm will look like until i develop. ill get a hang for it after a couple rolls.

[europanorama]

Just a guess but what if the wide lenses don't cover ? (at infinity at least)

i have 6x8 motor-cassette data-sheet for rb67 pro-s(not rz of course)
there is a table about eff. image-sizes.
smaller side is always 56mm.
depending FL, fstop, distance and vertical or horizontal image-width vary from 70mm(500mm lens horizontal) to 74-76mm vertical for 50,65,90,127, 140 macro lenses. also data for other lenses are given.

[homeiss]

ok people, the g adapter has been modified and it is more than big enough to allow the clearence for the 6x8 back on my RZ. now im shooting a roll of HP5 to see what the final negative size will be and i will post when done. maybe even make a new thread about finally succeeding on fitting a 6x8 back on the rz cameras.

thanks everybody for the help

What was the result after filing the G adapter down. Were the negatives any larger?

Thanks,
Cory