Yes, "infrared clean" in VueScan is dust and scratch removal: it uses the infrared scanning capability of scanners so equipped to detect dust and scratches.
I scan with only one idea in mind: capture all the usable data. I leave all additional processing for after the scanning is completed. So I usually don't crop in the scanning at all, I keep an eye on the histogram to be sure that I'm "windowing" the actual data completely, and my out-of-scanner files look like crap … But they have all the data I need to work with. My edits are usually very easy and quick as a result, unless it's a particularly screwed up negative. As example, here's a Minox 8x11mm negative I scanned with a copy camera approach yesterday: before:: https://live.staticflickr.com/65535/49870862427_abe274ff1d_o.png As you can see, the capture window was wider than the negative tonally, which means that ALL the data was captured across the board. And I always like to get a bit of the rebate all around the image area in order that I have a reference for what the "blackest" part of the image might be, and for ease of positioning in scanning as well as flexibility in cropping. The follow-on screen capture ... after:: https://live.staticflickr.com/65535/49870022788_9bef929f79_o.png … shows a quick process of the image to positive tonalities. The tonal curve and settings are not a complete picture: there are two gradient filter layers for top and bottom in this image that I have no way to screen capture. All of the processing, happened with the controls in the Tone Curve and Basic panels and those two gradient filters. I deem this as good enough to output to a 16bit TIFF for finish rendering (spotting, dust removal, localized edits, etc.). That took about 20 seconds on one frame. I copied those settings to the set of negs which I can then go into later and make small adjustments on each one Fun stuff… And amazing how much information a teensy scrap of film only 8 x 11 mm in size can hold! :-) G — No matter where you go, there you are. > On May 7, 2020, at 12:42 PM, Eric Weir <eew...@bellsouth.net> wrote: > > Thanks to everyone who responded—Ralf, John in Brisbane, and especially > Godfrey and Larry about spot removal in light room. > > A progress report: I’m proceeding slowly. I did four slides yesterday and > four today. Just getting familiar with the mechanics, e.g., defining the crop > in the preview for the scan. I tried color correction on a couple slides > turned out well on one, horrible on the other. > > Am I correct in taking it that “Infrared clean” in VueScan is dust and > scratch removal? Since John suggested doing sharpening before dust and > scratch removal, I think I’ll try sharpening in the scan and save dust and > removal for LR. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
