Forum: Photography


Subject: Grain aliasing with film scanners

Misha883 opened this issue on Nov 29, 2002 ยท 12 posts


Alpha posted Sat, 30 November 2002 at 1:12 PM

This image was shot with T-Max ISO 1600 pushed to 6400 (That is 2 full f-stops). It was hand processed in T-Max developer by yours truly, and scanned on a Nikon LS-2000 film scanner at 300 PPI. I ran a cropped portion of the scan through Grain Surgery again at the default settings. Once the filter had run, I reduced the image to 72 PPI for uploading and applied an Unsharp Mask with a threshold of 3, a 0.7 radius and a 150% sharpen setting on both the original and the filtered version. I did have to convert the photo to RGB in order for the filter to work and the speed at which the filter ran diminished exponentially with the high resolution scan.

For a first try with the filter, and having read nothing in the instructions, I am fairly impressed. I think most people would find the results of acceptable quality. I will test it some more over the next week or so and form a final opinion by then. The only thing I really wish would be that they didn't have a stupid screen over the image and would just have the demo time out instead. It would be a lot easier to see the results without a visual distraction.