matt_bevers Posted July 24, 2003 Share Posted July 24, 2003 I asked a while ago about good 400ASA color negative film for scanning. The consensus seemed to be in favor of Porta 400 UC or NC. I just got the first roll of UC back, and I'm having some trouble with colors - everything looks a little too blue-green for my taste. In vuescan's color settings I used portra 400VC for the film and white balance for the color balance settings. Anyone know of any options that might work better than this? If I get a chance, I'll upload a photo tomorrow when I get back to my other computer. Link to comment Share on other sites More sharing options...
mendel_leisk Posted July 24, 2003 Share Posted July 24, 2003 I've got zilch experience with color negative film and Vuescan, BUT, this is workflow I settled on with some unidentified color neg. film. Wouldn't hurt to try: ++++ Vuescan settings for color negs: Input|Media Type: Color Negative Input|Bits per pixel: 48 bit rgb Color|Color negative Vendor: Generic Color|Color negative Brand: Color Color|Color negative Type: Negative Color|Color Balance: None Color|Bright: 1.0 File|tiff file: 48 bit rgb (This should yield quite flat, dark image) Save 48 bit rgb tiff, open in photoshop, run levels with: autocolor (snap neutral midtones? Try with and without.) bp: .02% wp: .02% ++++ Link to comment Share on other sites More sharing options...
continuity Posted July 24, 2003 Share Posted July 24, 2003 I've found the Kodak Supra 100 or 400 profiles to work fairly well as a starting point. My theory is that since the technology in the UC is similar to the Supra technology, the profile should perform similarly. But, I could be wrong ;) I prefer to do any extra color correction in Photoshop. A slight cast isn't something too major to worry about in the first scan. A lab has to do slight color correction on all the prints from negs anyways, so scanning should be similar. Link to comment Share on other sites More sharing options...
r.t. dowling Posted July 24, 2003 Share Posted July 24, 2003 The Supra 400 profile or the Royal Gold 400 profile might be worth trying. Link to comment Share on other sites More sharing options...
dale_cotton Posted July 24, 2003 Share Posted July 24, 2003 To get exact colour from any colour neg film in Vuescan, follow Hamrick's instructions under Advanced Workflow on the Vuescan website. This involves scanning the leader to nail down the orange mask hue. From there I use white balance and typically a 25% blue reduction to compensate for what I assume is a light temperature differential. (Incidentally, I tried a roll of this Portra 400UC because of comments on this forum. It may be fine for portraiture but for landscapes I can hardly imagine anything worse. Great colour, horrible latitude, horrible acutance. Might as well use slide film as this stuff.) Link to comment Share on other sites More sharing options...
bill_tuthill Posted July 24, 2003 Share Posted July 24, 2003 Use Supra 400 or RG 400 (similar, one is slightly warmer) if you like low-contrast results, use Generic if you want high-contrast results. Always used Advanced Workflow. Dale, according to my exposure latitude test, a mixed sun/shade scene, Portra 400UC is among the leaders for wide exposure latitude at -3/+5. It scans much less grainy in shadows than Portra 160NC. I'll look again and try to see what you mean about acutance. Somebody on Usenet remarked that it performs poorly in overcast weather, but it seems OK so far (haven't had much of this lately). The only flaw I noticed was too-sudden red transitions in skin-tone shadows, which is perhaps why some pros prefer the other Portras. Link to comment Share on other sites More sharing options...
edward_c._nemergut Posted July 24, 2003 Share Posted July 24, 2003 I've had relatively good luck using the Kodak Portra 160VC profile... Link to comment Share on other sites More sharing options...
chi_confucious Posted July 24, 2003 Share Posted July 24, 2003 here's my settings using version 7.6.51. i just upgraded and i find the newest vuescan to have less noise and better color rendition than the previous verison 7.2.9 i've been using for awhile. color tab for me includes:<br> <br> color balance: white balance (may toggle between auto levels at times)<br> brightness 0.65 (prefer to brighten via level/curve in photoshop)<br> kodak<br> portra<br> 400vc<br> printer color space: sRGB<br> film color space: built-in<br> output color space: sRGB<br> monitor color space: sRGB<br> Link to comment Share on other sites More sharing options...
bill_tuthill Posted August 7, 2003 Share Posted August 7, 2003 Thanks Chi! I tried your settings but for the most part preferredthe following, which seems to be an improvement over Generic:<P>Most everything default, including Brightness 1<BR>Kodak / Royal / Gold 100 (Gen 2)<BR>Log (dark)<P>The log-dark setting seems key, because otherwise the scan is too bright. Results of these settings seem a bit better than Genericlog-medium due to lower contrast and more-glowing saturation.The Portra VC settings were too red-brown.<P>P.S. Just got back from Idaho where we had some rainy and overcastweather, and can report that 400UC excels under such conditions.I detected none of the murkiness so detested in 400VC and even seensometimes in Supra 400. Link to comment Share on other sites More sharing options...
bill_tuthill Posted October 22, 2003 Share Posted October 22, 2003 Log dark has been removed from newer versions of Vuescan, so tweak Brightness/Gamma instead. Link to comment Share on other sites More sharing options...
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