Here are some buns NLP conversions. for alot of them they come out super duper purple, especially if a photo is somewhat underexposed . ive even taken the photos on my canon r6m2 at bracketed expoures, under, middle and over exposure and each conversion is bad. i have an ideal setup with a cinestill light table, essential film holder, diy copy stand, tripod head leveler, and a canon EF 100m F2.8L. I shoot at 1/25 F8 Iso 100. Ive shoot other rolls at middle and 1 stop over exposure and the same weird color results. on my light table im on the correct WB, my camera is on auto wb.
I saw a post saying to significantly crop in to get a better calculation after setting the WB in LRC, and still nothing. ive moved my crop to different parts of the image and then converted the negative but it doesnt take out the big purple color cast. The negative itself looks good, i know it was not left in my car or exposed to heat. And no I am not converting the negative with the border.
I am genuinley so confused and frustrated because of how much time and effort ive invested for bad results. Yes i do know how to color grade these miscalculations out but I shouldnt have to be so good at colorgrading to undo this mess. wt am i doing wrong!!!
also yes my color profile is at negative lab v2.3 - frontier after conversion
It would help if you posted a shot of the negs. Also, are you sure your Cinestill light is set to the right setting?
You mentioned having the camera set to auto wb. Trying locking that to daylight. It doesn’t affect the RAW file, but it may send some confusing metadata.
Also try either a manual conversion in PS or download a free app like NegPy or the Filmomat trial and compare the result.
Please share the unedited camera scans. They can help us try things that might improve your situation. Use a cloud service if you have any or use wetransfer or any other file sharing service.
How old are the original films?
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Try using a Custom White Balance on the light source itself, before copying your negatives to raw files. This will expose the orange mask at the correct values.
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Use the eyedropper tool in LrC to set the white balance of the film, using a clear area between frames. This will get rid of the orange mask, leaving the correct rendering of the image in negative form.
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Only after steps 1 and 2 should you crop the image slightly within the 35mm frame. Set a border buffer of around 5%.
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Convert your images and evaluate…
Is the Cinestill light table properly masked off so that no stray light illuminates the surrounding area? Are you working in a very dimly lit room? The point is to eliminate all stray light sources from entering the lens.
It sounds like the light source is very dim. I’m using exposures around 1/125 at f5.6 at ISO 200 (on Micro 4/3). My source is a Viltrox L-116t video light panel under the diffusion panel of the Essential Film Holder.