Phase One could make the Copal shutters / Aperture Only units more enjoyable to use in the field (and elsewhere) by adding fields for -
• Focal Length
• Shift X value
• Shift Y value
• Tilt Value
They have aperture, so why focal length was left off makes zero sense to me... PO support replies have been, "yeah, alot of people have asked for that..."
Regarding aperture-only (AO) units, when it comes to black frames, the lens has to be manually covered. I use some pretty large filters, so that's not so easy to do. It's a clumsy solution where it's pretty easy to inadvertently move the tripod and undo my efforts in leveling it, truing up the camera, etc. I prefer to closing the Copal shutter to do the black frames vs manually covering the lens. That just my preference.