William Robb wrote:
> ----- Original Message ----- 
> From: "J and K Messervy"
> Subject: Re: Pentax medium formats
> 
> 
>> Am I right in assuming the 645 frame is 6cm x 4.5 cm while the 67 is 6 
>> cm x
>> 7 cm?  That makes the 645 nearly square.  Is the 645 inferior due to 
>> its
>> size?  I'm mainly thinking of landscape shots.
> 
> 6x7 is closer to square than 645.
> When proofing, we printed 6x7 to a 4x5 inch print with little cropping, 
> 6x4.5 is a 2:3 aspect, and so prints to a more familiar 4x6.
> Other than my own prediliction about negative orientation in the 
> enlarger, no, 645 is fine. I expect that with modern films and 
> reasonable print size expectations, the two formats will be pretty close 
> to indistinguishable in print.
> 
> William Robb 
> 
>

Last I checked, 645 was 4:3 aspect, it's halfframe 6x9, which is 2:3.

-Adam


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