How to combine mono and color SPP images for sharpening control

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JimKasson Forum Pro • Posts: 45,327
How to combine mono and color SPP images for sharpening control

In two recent threads, we determined that with the DP1 Merrill, you couldn't turn sharpening completely off in SPP in color mode, but you could in monochromatic mode.

For those who want the sharpness of the monochromatic mode for their color images, here's a technique that will do the job in Photoshop.

1. Save a color version from SPP as a TIFF.

2. With sharpening turned to minimum, save a monochromatic version from SPP as a TIFF.

3. Load both files into Photoshop.

4. Convert both files to Lab.

Both files must be 8 bits/channel or both files must be 16 bits/channel

5. In the channels control for both images, make only L visible.

6. Select all in the monoo image.

7. Copy the channel.

8. Paste the channel in the L channel of the color image.

9. Make all channels in the color image visible.

10. Convert the color image back to RGB.

11 Save the image.

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 JimKasson's gear list:JimKasson's gear list
Leica Q2 Monochrom Nikon Z7 Nikon Z9 Hasselblad X2D 100c Fujifilm GFX 100 II +1 more
Sigma DP1 Merrill
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