Hi,
I'm not sure this is the correct section for this question but I'll ask anyway. If it needs to be moved, please do so.
I'm just starting with large format having built a 4x5 last December and just finishing refurbishing a 9A Century Studio 8x10. I've acquired a couple meniscus lenses and Packard shutters and want to use them on an upcoming shoot. I'll be using ISO400 B&W film so I want to use my DSLR for test shots to ensure the (reasonably) correct f-stop etc. I'll be using the instantaneous exposure mode of the Packard so I'm at 1/25th for shutter speed. I plan to use ND filters to get the f-stop I'd like for soft focus. This will also be my 1st time with ND filters.
If I really understand everything fairly well I should be able to use manual mode on the DSLR, set the same f-stop and shutter speed and ISO and use the same ND filter and get the same result when looking at the chimp screen, Right???
Ie, is f2.8 the same % opening on a 105mm lens in DSLR (full frame) and my 285mm meniscus lens on the 4x5?
I know its not same area.
If my theory isn't correct how can I do some test shots to get the correct f-stops and ND filter? I'd really not have to use film for test shots since the scene will be set up the day of the shoot.
Thanks,
Ray.
Bookmarks