I just started camera scanning a few days ago and I can’t seem to get sharp scans without strange colour casts and there is little detail in the shadows.
My setup is a GFX 50r, EFH, iPad Pro 11’ (first gen) as a light source, a Pentax 645 120mm f 4.0, and I inverted my tripod.
I can’t figure out what is going wrong, I align the camera and film holder using a mirror, I have the camera set to the electronic shutter, and I am using the 10-second delay. So there shouldn’t be any movement.
For the focusing I am using high blue peaking, opening the aperture all the way, focusing, and then closing it to f 8.0. I am using manual exposure, with a shutter speed of around 4 seconds, ISO of 100, and auto white balance (I am shooting RAW)
And then for the iPad, I am using the Negative Supply app, which gives you a (supposedly) colour-balanced white screen. I am shooting at night in almost complete darkness, and I put a lens hood around the film frame to really prevent any glares.
Here is a link to the raw scans, and some of the converted scans that I tried to get looking how I want: https://drive.google.com/drive/folders/1cRXF9HSE4MekzM-tjV2OxPmxLV_K4PHF?usp=share_link
The only things I can think of that could be possibly causing issues are the iPad is not bright enough, the focus shift when opening and closing the aperture, and the camera is not getting the right white balance, which shouldn’t be an issue because I am shooting in RAW).
The film negatives themselves are sharp and were properly exposed and developed. I know because I had already scanned some of these negatives using an Epson V6000 and those scans seemed sharper and had better colours than the camera scans.
I am wanting to get the scans so they look as close to neutral as possible in terms of colour and exposure using NLP. So I can then edit the copies to the colours and tones I want using LR.
I would greatly appreciate any advice or tips! As I am getting a bit frustrated!