I have some VS100 4X5 sheets that are underexposed by about two stops. I've been trying to find a way in Silverfast scanning software to brighten it up. So far I'm kind of frustrated.
When I use T-max, it gives me a simple exposure slide that goes from -3 to +3. It works quite well. It even shows up when I use color negative film but as soon as I go to positive film, the box with the exposure slider goes away and I can't get it back.
Any suggestions?
Yeah. I'm familiar with Photoshop. It's the place I buy my film.
Regardless of the scanner or software used, it is always very difficult to reveal shadow detail on a transparency without considerable noise appearing in the resulting scan. Even if a "slider" were to be available, it is unlikely that two stops of under-exposure could be compensated for satisfactorily.
Your only chance is to do it with a drum scanner, but 2 stops could also be a problem!
MFG Armin
Why is a drum scanner more effective on this sort of thing?Originally Posted by Armin Seeholzer
Yeah. I'm familiar with Photoshop. It's the place I buy my film.
Far more sensitivity due to the use of a PMT (photo multiplier tube). It gets whatever you have on the neg.
Lenny
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Museum Quality Drum Scanning and Printing
Before you go the drum route --not that a drum isn't a good option-- try scanning the negative in full RGB mode. Under the GENERAL options, set your gamma to 3, and under the Frame setting set it to 48 bit HDR color.
That is how I pull the most shadow detail out of my transparencies.
A scanner profile helps. I made one for those settings with EZ Color.
You'll need to correct the white point and black point in PS later. But, I think you'll find you get more from what you have.
Download Vuescan from https://www.hamrick.com/.
It's a free trial and you have several useful setting to try and get what you can from your slide.
You can do a 'multi exposure' scan which will get what it can and you can try 'restore color' from the filter section.
I get good results from very thin negatives so it may help your slide.
Did you try Epson Scan and Ken Lee's tutorial for Epson Scan?
Wayne
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Very thin negs are a world apart from "underexposed" slide film - in fact the complete opposite... underexposed slides are have extremely high density. They are exactly what consumer flatbeds are worst at.
You are right. A PMT will see better into the black slide. My dyslexia gets worse and worse as I age. I went to Vancouver where I drove garbage truck for years. I know it better than any cab driver and I consistently went the wrong way. Hi ho.
The software is a free trial and it's probably worth a try. It does work well and the dual exposure feature does seem, with it's two exposures, to get most of what the scanner is capable of. Vuescan is very good at some things so it's worth a try. He does have the scanner already.
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