![]() ![]() (3) In SilverFast Ai, Frame Tab, Select the Scan Type as 64-bit HDRi (Figure 2). (2) In SilverFast Ai, General Tab, configure the job as a Negative Transparency scan, (Figure 1). (1) Find a frame-size piece of unexposed, but developed, negative film of the same stock used for the photographs you will scanning. Stage One: Getting the L*a*b* Value of the Orange Mask Stage Three: Process the image into a positive in Photoshop. Stage One: Isolate the L*a*b* value of the orange mask. The first is a three-stage procedure, which uses SilverFast Ai Studio and SilverFast HDR for the first two stages. ![]() In the scanning context, “raw” only means that the scan is moved through the scanning software with no image editing done to it there. All RGB colour scans are, whether negative or positive. Digital camera raw images are not three channel pixel-based images. If you noticed that the word “raw” always appears in quotation marks here, it is because there really is no such thing as a raw scan in the same sense that digital cameras can give us access to raw image data. They work independently of negative profiling in the scanning software and reproduce the scanner data unaltered in the original scan. I revert to it for comparison at the end of this article.Īlternative “raw” techniques are presented here. That’s the easy way and it works very well, but it’s not “raw”, as it does substantial image processing in the scanning software. Then scan the images in 16-bit per channel mode using the Negafix profile. In SilverFast, the default option is to use Negafix, select the closest Negafix profile for the film one is scanning, tweak it a bit as necessary and save that new profile as a Preset for future scanning of the same film stock. These issues need to be corrected somewhere. The two big issues doing without the negative profiles in the scanning software are that the film has an “orange” mask (or some other hue) that must be neutralized and scans of negatives tend to come out of the “raw” process rather flat and lifeless. Stated advantages of this workflow are that no data gets altered or destroyed on the way to Photoshop and there is no need to bother about selecting and possibly re-configuring conversion profiles in the scanning software appropriate for the brand of negative film one is scanning. Some think the optimal way of scanning colour negatives is to minimize editing intervention at the scan stage by scanning exactly what the scanner produces unaltered, then opening the image in Photoshop, converting it to a positive and making other adjustments as needed. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |