SF 6.6.04c Kodachrome IT8 Cal Probs on 10000XL
PostPosted: Wed Dec 31, 2008 9:24 pm
Guys
After receiving the new 35 mm Kodachrome IT8 Calibration target and updating to Silverfast 6.6.04c, I thought I would pass on the following obversations.
1. My computer is a Dell 690 Work Station running WinXP Pro. I use Photoshop CS4.
2. The automatic calibration feature is unable to find the IT8 slide if it is in the normal Epson 10000XL 35 mm slide transparency holder. Even if I manually set the frame on the slide. It was necessary to delete the manually set frame, remove the Kodachrome IT8 target from the slide holder and place it directly on the glass. If I manually set a frame on the slide, the automatic calibration would also fail and often lock up communication with the Epson 10000XL, requiring the use of the WinXL Pro Task Manager to close PS and SF.
2. I could not figure out how to do the IT8 calibration in the old manual method. Automatic seems to be the only way to calibrate.
3. Even after a "successful" Kodachrome IT8 calibration, the result needed further color correction to get the scanned Kodachrome IT8 image gray scale steps within a few RGB units. Typically it was necessary to use the Eyedropper White, Gray and Black tools to balance the gray scale steps at the middle (11) and at each end. The uncorrected scan image was so dark I got the "Not bright enough" error message when I first used the white eyedropper. I have attached the resulting images.
Are my observations to be expected when doing an IT8 calibration with the new Kodachrome target?
After receiving the new 35 mm Kodachrome IT8 Calibration target and updating to Silverfast 6.6.04c, I thought I would pass on the following obversations.
1. My computer is a Dell 690 Work Station running WinXP Pro. I use Photoshop CS4.
2. The automatic calibration feature is unable to find the IT8 slide if it is in the normal Epson 10000XL 35 mm slide transparency holder. Even if I manually set the frame on the slide. It was necessary to delete the manually set frame, remove the Kodachrome IT8 target from the slide holder and place it directly on the glass. If I manually set a frame on the slide, the automatic calibration would also fail and often lock up communication with the Epson 10000XL, requiring the use of the WinXL Pro Task Manager to close PS and SF.
2. I could not figure out how to do the IT8 calibration in the old manual method. Automatic seems to be the only way to calibrate.
3. Even after a "successful" Kodachrome IT8 calibration, the result needed further color correction to get the scanned Kodachrome IT8 image gray scale steps within a few RGB units. Typically it was necessary to use the Eyedropper White, Gray and Black tools to balance the gray scale steps at the middle (11) and at each end. The uncorrected scan image was so dark I got the "Not bright enough" error message when I first used the white eyedropper. I have attached the resulting images.
Are my observations to be expected when doing an IT8 calibration with the new Kodachrome target?
- Kodachrome Target image after IT8 Calibration and before Eyedropper color correction
- Kodachrome-IT8-After-Cal-No-Corr.jpg (35.58 KiB) Viewed 1120 times
- Eyedropper color and exposure corrected image
- Kodachrome-IT8-After-Cal-Eyeddropper.jpg (52.81 KiB) Viewed 1120 times