things to consider when using 6x4.5 back on RB67

[BylineBuddha]

hi there follks

when i bought my RB67 i got it with another back, the 6X4.5 one and also the mask for using it.

honesly i havnt got to use it yet.

now im considering to run a test but was wondering,

is there any difference in lens view?

i mean - i only use the 127mm lens which gives me roughly 58mm.

so is there any 'cost' by using a 6x4.5 format ?

thanks in regard

 

[Overrank]

hi there follks

when i bought my RB67 i got it with another back, the 6X4.5 one and also the mask for using it.

honesly i havnt got to use it yet.

now im considering to run a test but was wondering,

is there any difference in lens view?

i mean - i only use the 127mm lens which gives me roughly 58mm.

so is there any 'cost' by using a 6x4.5 format ?

thanks in regard

I’ve used an A16 back on a Hasselblad V series and it pretty much did as you would expect - you got a smaller negative, but 16 of them rather than 12. I didn’t have the mask on the viewfinder so I was guessing the framing. Apart from getting more frames on a roll I don’t really see any advantages, you’ve still got a very big camera to make a 645 negative (and a RB67 would be bigger still).

 

[Mike B USA]

The entire reason for lugging around such a beast of a camera as the RB67 is the big, glorius negative it shoots. There isn't much reason to use a 6x4.5 back on it, except for the dubious benefit of getting more exposures per roll of film. If that's the goal, go back to 35mm or smaller formats.

 

[Autonerd]

The entire reason for lugging around such a beast of a camera as the RB67 is the big, glorius negative it shoots.

I would agree. I have a friend's RB67 on long-term loan, and it's a pain in the butt to use -- but man, those negatives! You do get more shots per roll but still have the difficulty of setting up the RB67 for a photo, which can take a while.

If you're interested in the smaller negative size (and if it isn't cost prohibitive), a Mamiya 645 is a much better solution -- it's a smaller camera and much easier to carry and use. I have (or have access to) a Mamiya RB67, C330 and 645 1000s, and the 645 is my favorite.

Aaron

 

[Horiz Opposed]

hi there follks

when i bought my RB67 i got it with another back, the 6X4.5 one and also the mask for using it.

honesly i havnt got to use it yet.

now im considering to run a test but was wondering,

is there any difference in lens view?

i mean - i only use the 127mm lens which gives me roughly 58mm.

so is there any 'cost' by using a 6x4.5 format ?

thanks in regard

You are precropping. The lens is the lens.

DOF and image magnification will be identical, but the frame will be tighter. Like comparing a FF DSLR to an APS-C.