RE: [Leica] color heliar + 75 vf = paralax?

[Greg.Chappell@bankofamerica.com]

Since the 50 and 90 frames are parallax corrected on the IIIg, You should be
able to check the parallax easier than with any other screwmount by simply
framing your shot through the 75 viewfinder, then go back to the camera's
viewfinder & make sure you're centered. I would think the view for 75 would
be pretty easy to imagine between the 50 & 90 framelines on the IIIG. 

- -----Original Message-----
From: Guy Bennett [mailto:guybnt@idt.net]
Sent: Tuesday, March 07, 2000 12:43 PM
To: leica-users@mejac.palo-alto.ca.us
Subject: [Leica] color heliar + 75 vf = paralax?


>I used the Voigtländer 75mm viewfinder on my IIIG for the portrait shots of
my
>grandaughter;  the image on the negative had a decided bias to the left
>(vertical)
>side.  Next time I am going to move the central image in the viewfinder
>slightly to
>the right.  Ed K.


ed,

could this be a simple paralax problem?

some of my portrait shots taken with the summarit showed a similar top/left
bias - i was simply too close when i shot them and forgot to compensate for
paralax.

is there an 'official rule' for paralax compensation? i seem to recall
having read somewhere that you need to compensate if you're closer than 2
meters (about 6'8") to your subject. i realize that this basically means
moving your subject 'down and to the right' when shooting close with a sm
leica. is there any way to determine how far down and to the right?

guy