kshapero
South Florida Man
Anybody have any experience saving a Vuescan to RAW? I can not figure it out? I use version 8.4.7.0.
Vuescan and RAW
- Thread starter kshapero
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kaiyen
local man of mystery
The question is - what do you want to do with the raw file?
Saving to raw is easy - under output, just check the box for raw, and then save it somewhere. it'll save as a tiff.
the key is to realize that this is not a RAW file, as in a Nikon NEF from a camera. This is a raw file just for Vuescan. You can then re-output that raw file over and over from Vuescan.
allan
Saving to raw is easy - under output, just check the box for raw, and then save it somewhere. it'll save as a tiff.
the key is to realize that this is not a RAW file, as in a Nikon NEF from a camera. This is a raw file just for Vuescan. You can then re-output that raw file over and over from Vuescan.
allan
clintock
Galleryless Gearhead
Note you have to have the pro version or whatever the more expensive registration is called in VueScan for the RAW to be enabled. I like using it, because it means I can scan the film only once, then mess around with the rubic's cube of countless adjustments later, using the raw file as the source. Who know how long the light bulb in the scanner will last?
Also, since the RAW file is written to disc during the scan, the whole process is faster, well that step anyway, since the VueScan does not pause to process the RAW file into a JPEG or TIFF, it just moves to the next frame.
Also, since the RAW file is written to disc during the scan, the whole process is faster, well that step anyway, since the VueScan does not pause to process the RAW file into a JPEG or TIFF, it just moves to the next frame.
kshapero
South Florida Man
Nice, can you process the raw file with photoshop?
clintock
Galleryless Gearhead
I've tried messing with the vuescan raw file with GraphicConverter, as I don't have photoshop (gasp!)- the levels are pretty far all crushed to one end of the histogram, so for me anyway it's been faster to make a .ini file (thus saving all the adjustments)for each film type in vuescan and 'get it close' with vuescan acting on the raw and outputting a tiff. Then do final tweaks on that tiff.
Photoshop is more powerful, and may deal with the vuescan raw just fine, but it was a bit much for GC to correct. Photoshop will at least open it for sure, since it's just a tiff.
Photoshop is more powerful, and may deal with the vuescan raw just fine, but it was a bit much for GC to correct. Photoshop will at least open it for sure, since it's just a tiff.
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kaiyen
local man of mystery
Doesn't matter if it's photoshop or whatever - the levels are all smushed to one side so you can't do much about it. It makes you realize that there is something still going on between what the sensor is seeing (the raw file) and what is being outputted. There is still _some_ interpretation to take a histogram all the way to one side and spreading it out evening.
allan
allan
lex
Established
the problem i have had with scanning negatives in RAW is that the outputted DNG file is a negative. i want the advantages of working with a RAW file in adobe camera raw but i can not invert the negative DNG.
how are people mainatining the latitude of RAW with vuescan but work witht he positive image? with tiff?
how are people mainatining the latitude of RAW with vuescan but work witht he positive image? with tiff?
kaiyen
local man of mystery
Vuescan can output raw as a DNG file? I didn't even know that.
They are not RAW files. Not that I am purposely using "RAW" vs raw. The Vuescan files are raw in the sense that they are unmodified, almost pure data from the sensor. They are not meant to be interpreted by anything other than Vuescan, however.
allan
They are not RAW files. Not that I am purposely using "RAW" vs raw. The Vuescan files are raw in the sense that they are unmodified, almost pure data from the sensor. They are not meant to be interpreted by anything other than Vuescan, however.
allan
clintock
Galleryless Gearhead
The so-called raw files coming out of vuescan are tiff files, so I think one could invert using anything that will do it, save as tiff then open in Adobe Camera Raw or what have you. Adobe Lightroom is what the vuescan web page recommends for opening the 'raw' file from vuescan.
I wish I knew how to get a DNG file from vuescan, then I could dupe GraphicConverter into pulling up the RAW menu.
I wish I knew how to get a DNG file from vuescan, then I could dupe GraphicConverter into pulling up the RAW menu.
vicmortelmans
Well-known
kaiyen said:
This discussion has been held before, but my question remains: why not?
Because the RAW created by Vuescan has nothing Vuescan-specific in it, it can be post-processed by any other postprocessing tool. You can use PS if you want, and the curves will allow to do inverting, black and white point and gamma in one go. Or you can program your own postprocessing if you want.
The only risk is that different scanners have different sensors and may have different characteristic output values when scanning the same negative.
There is however another constraints, but it is not related to Vuescan: don't use 8-bit raw for postprocessing (or import a 16-bit raw into a tool that can only handle 8 bit, like the GIMP). Because the raw histogram is quite narrow (that's because of your negative's dynamic range), reducing to 8 bit will loose a lot of information. I'm quite sure most scanners use 12 or 16 bit for internal post-processing, so if you can't postprocess 16 bit by yourself, let the scanner software (Vuescan or other) do it!
Groeten,
Vic
lex
Established
thanks for the info!
