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LCC plate question...

Medium Format Systems and Digital Backs - The GetDPI Photography Forums - www.getdpi.com
Hi all,

I haven't posted in a while, so happy new year to everyone!

A quick (or maybe not) question about LCC plates / cards for use with a technical camera.

A while back I dropped my official Mamiya Leaf LCC plate into a river while on a job and have since been using a piece of white / opal plastic that is between 2mm and 3mm thick. After about a year of use I haven't noticed any difference in outcome of using a different plate, at least until until now...

Yesterday I shot a multi shot landscape (A 360 degree panorama, intending for each shot to be kept as an independant image,) panning the camera and keeping exactly the same focus and movements and exposure settings, then shot one LCC to apply to all. The scene was relatively dark in the foreground and with bright overcast sky in the top third of the frame. Some frames had more or less shadows in the foreground / sky at the top. After I applied the LCC file to all, on shots with more sky I noticed some of them had a quite pronounced colour cast in the top of the frame (It was an overcast day.) Toggling LCC colour cast correction on and off, it seemed on those shots (and maybe the other shots too,) the LCC-uncorrected images looked better; the green of the plant life was more vibrant and, more obviously, the sky was more neutral. This got me thinking...

I'm wondering if the LCC plate I've been using is too thin / transmits too much of the scene through it? When analysing the LCC shot in C1, upping the saturation to +100 etc, I can't see any trace of the "image", but maybe I'm missing something?

Anyone else able to chime in with experience here?

PS: I'm using a Credo 60 back and the lens I was using was an RS 55mm APO-SD.

Thanks!
Date: Jan 10, 2018   


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