Lightroom 4.1: Slow spot removal with 53MB 8 bit grayscale TIF files

  • 1
  • Problem
  • Updated 6 years ago
  • (Edited)
Using Lightroom 4.1, I've been working on 35mm B&W images scanned at 6400ppi 8 bit grayscale TIF. The files are about 53MB. The spot removal tool is extremely slow—for any more than one dust spot, it's quicker to do the work in Photoshop. When returning to Lightroom 4.1 from Photoshop the previous crop and rotation need to be redone.
Photo of Eric Johnson

Eric Johnson

  • 10 Posts
  • 0 Reply Likes

Posted 6 years ago

  • 1
Photo of Rikk Flohr

Rikk Flohr, Champion

  • 1373 Posts
  • 334 Reply Likes
Eric,

I am curious. If you take an 8 Bit Grayscale Tiff and convert it to a 24 bit Color Tiff in PS but still leave it black and white, does the resulting file, when imported into LR still exhibit the same behavior?
Photo of Eric Johnson

Eric Johnson

  • 10 Posts
  • 0 Reply Likes
Maybe. I did a new scan and edit in 8 bit grayscale and it returned to Lightroom 4.1 wrongly rotated. I corrected the rotation in Lightroom 4.1 edited it in Photoshop CS5 chaining the mode to RGB 16 bit and when it returned to Lightroom 4.1, the rotation was correct. By the way, after importing all my negative scans I select all and flip them horizontally. The horizontal flip is never affected by Photoshop CS 5 editing.
Photo of Rikk Flohr

Rikk Flohr, Champion

  • 1373 Posts
  • 334 Reply Likes
What I want to know is, on this converted image, is the spot removal working any faster than in the 8 bit image?
Photo of Eric Johnson

Eric Johnson

  • 10 Posts
  • 0 Reply Likes
Perhaps only slightly after converting from grayscale 8 bit to RBG 16 bit. I still get Mac's spinning beach ball for a couple seconds before I can do another tiny spot removal. The rotation needed to be redone after returning to Lightroom 4.1 from Photoshop CS 5. I'm using a 2006 Mac Pro with 14GB RAM.