... or can I turn the ISO up and save time?
IIRC both the LCC and the image need to be at the same ISO, otherwise the software wont be able to match them.
I took a series of LCC shots at F11, all my commonly used shifts (20mm L, 20mm R, 20mm V etc etc), and brought them into Capture One to build a library of LCCs.
However I shot the LCC at 50 and my images were normally at ISO25, and Capture One would not apply the LCC to the image.
This was with Leaf MOS files and Capture One 6, it may have changed in V7.
If you have time to make the LCC during the shoot then that's great, I do a lot of stitching so want to move quickly, especially in changing light. My normal process (after composing and metering etc) with a left+right stitch is:
- Shoot left side
- Shift, shoot right side
- Increase 2-3 stops (shutter only - must leave aperture fixed), slide in LCC plate, shoot LCC right side
- shift, shoot LCC left side
It gets a bit more fun with 6 or 9 shots in the stitch, difficult to work out which LCC applies to which image sometimes!
YMMV with night shots and longer exposures, an increase of 2-3 stops for the LCC may leave you waiting a while - but the whole idea I believe is to keep the aperture (and ISO) constant.
Hope that helps
TMH