Is filmic RGB perhaps a bad choice for something which is starting out as an image on film already? I also tried using the Velvia module which I’ve always liked and I think does help (I’ve used it on other slides) but I know it’s a bit of a ‘no no’ for the scene referred workflow so I undid that and made all of the colour adjustments in filmic and colour zones before making this post.Īm I using the right modules for the job? I’m pretty certain that I have not reproduced the way that the slide looks on the light box but it’s now less far away. To me the grass still looked too blue, so I went to the hue tab and shifted some blue to green. Widening the peak more into the yellows has a much more noticeable effect… not a problem on this image but on images with strong yellows it can be problematic because Kodachrome has no issue with subdued yellows. It has some effect but on its own it is pretty limited. Using this to push up the green saturation is something I’ve tried on several slides now. Increasing the saturation to 15.65 in filmic rgb boosted the greeens a little but I could not push this any further without the other colours becoming a problem. The challenge then seems to be to get the grass to look like the slide without making the reds and blues looking ridiculous.Ī screen grab showing the original in Darktable… The reds on the other hand are coming through pretty strongly even in the unmodified raw file. This can be an issue with Kodachrome sometimes but not in this case - the grass is quite ‘in your face’ when looking at the slide on a light box. My initial reaction is that the digitised greens look very dull. The mount is dated 1980 so I think this one has fewer concerns over age related colour shift than some of the others… although it’s still 41 years old. Kodak in Hemel Hempstead also seem to have slightly ‘missed’ with the mounting. I’ve no idea who the people are, where it was taken nor why but it does have plenty of primary colours to play with. The photo (from my late uncle) definitely won’t be in the ‘final cut’ - it has a serious focus issue which I think is a camera fault. Yesterday I found what I think is a suitable test slide for colour adjustment. In terms of illumination source I started out using a slide projector (3300K ish) and have now bought a 4700K Solux halogen lamp which seems to be recommended in other people’s writings on this subject. This seems a non trivial topic even for newly shot raws on a modern DSLR but digitising slides introduces a whole bunch more variables… the white balance of the light source, the light when the photo was taken vs the balance of K64 slide film, the inherent colour response of the film and finally any colour shifts that have occurred due to ageing. Getting the colours ‘right’ is something that I’m going to need to figure out how to do. I’ve been experimenting more with a few test slides and my Canon EOS 70D and bellows setup. Warning… long and somewhat rambling post… sorry!
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