iSRD offset on Epson Perfection 4870 Photo

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michaelwe
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Posts: 15
Joined: Tue Sep 07, 2010 9:48 pm
Scanner: Epson 4870
SilverFast Product: HDR

iSRD offset on Epson Perfection 4870 Photo

Postby michaelwe » Fri Feb 20, 2015 2:05 pm

offset 3.PNG
iSRD marks offset from dust
offset 3.PNG (23.92 KiB) Viewed 1219 times


iSRD image of dust is offset from the visible dust, not being repaired in HDR.

I am using Silverfast SE Plus 8 8.2.0r3 with Epson Perfection 4870.

I scanned some originals at 2400 dpi into 64 bit HDRi format.

When processing them in Silverfast HDR, the iSRD function does not work, and I see with 'Mark' selected that the red marks are offset from the actual faults.

The 35 mm slides are in ordinary cardboard mounts, lying on the glass of the scanner.

How can I fix this?

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LSI_Ketelhohn
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Re: iSRD offset on Epson Perfection 4870 Photo

Postby LSI_Ketelhohn » Thu Feb 26, 2015 3:10 pm

In the preferences' special tab you can change the iSRD alignment radius.
Please try adjusting that.


Kind regards,
Arne Ketelhohn.

michaelwe
SilverFast Beginner
Posts: 15
Joined: Tue Sep 07, 2010 9:48 pm
Scanner: Epson 4870
SilverFast Product: HDR

Re: iSRD offset on Epson Perfection 4870 Photo

Postby michaelwe » Thu Feb 26, 2015 3:24 pm

Thanks, Arne. I should have mentioned that I already set the radius to 70 pixels.

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LSI_Ketelhohn
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Re: iSRD offset on Epson Perfection 4870 Photo

Postby LSI_Ketelhohn » Mon Mar 02, 2015 4:05 pm

Have you also tried setting it to 1 and 200?

Setting it to 1 can help in case the alignment is finding "false friends".


Kind regards,
Arne Ketelhohn.


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