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iSRD missing, Kodachrome does not work

PostPosted: Thu Jan 21, 2010 8:31 am
by dclark92064
I am using SF 6.6 1r4c with an Epson V750. I have just started using SF and upgraded to 6.6 recently.

The icon for iSRD does not appear. The SRD icon is present and seems to work. ICE works. I have tried several transparancy and pos/neg settings, and I have tried several settings for scan type. I reset the preferences with no impact on the problem.

Also, when scanning Kodachrome there is a strong blue cast and selecting Kodachrome makes only a very slight difference from the positive setting.

Any ideas what I am doing wrong?

Re: iSRD missing, Kodachrome does not work

PostPosted: Mon Jan 25, 2010 9:01 am
by LSI_Morales
Dear dclark,

iSRD is not present in SilverFast Ai for your scanner model. The 64 bit HDRi scan is available in transparency mode, this will allow you to create raw files which contain the infrared channel information. These files will be then opened in SilverFast HDR where you will find iSRD, you will be able to use this tool to correct scratches and dust.

Cheers

Re: iSRD missing, Kodachrome does not work

PostPosted: Sun Oct 31, 2010 2:38 pm
by jelen
I have similar question:

Table http://www.silverfast.com/comparison/scanner/en.html shows:
"iSRD®, infrared Smart Removal of Defects, unlimited dialogue (hardware depending)" : "Ai Studio" | "Ai".

Similar in document http://www.silverfast.com/download/docu ... -04-07.pdf - there is iSRD dotted in SF Ai column but it is not dotted in SF HDR column.

Why those tables shows presence of SF iSRD in SFAi and not in SF HDR? Is it some prepared change for short future?
Price of SF HDR is aproximiatelly 1/2 price of new scanner Epson V750 with SF Ai. I need only this function add to functions of SF Ai. Then is question of buying SF HDR (and presence of this function there) very interesting for me.

I appologize for my bad english.

Re: iSRD missing, Kodachrome does not work

PostPosted: Mon Nov 01, 2010 5:56 pm
by LSI_Morales
dear Jelen

jelen wrote:Table http://www.silverfast.com/comparison/scanner/en.html shows:
"iSRD®, infrared Smart Removal of Defects, unlimited dialogue (hardware depending)" : "Ai Studio" | "Ai".

Similar in document http://www.silverfast.com/download/docu ... -04-07.pdf - there is iSRD dotted in SF Ai column but it is not dotted in SF HDR column.


iSRD is a hardware dependent tool, which requires an infrared source to make scans.
HDR is an editing software and not a scanning software that is why it is not explicitly marked. If you have a 64 bit HDRi file you can open it using SilverFast HDR or HDR Studio.

If you already have SilverFast Ai with your scanner, you might create 64 bit HDRi bit files and open them with SilverFast HDR for correction, if you files do not have the infrared channel scanned in 64 bit HDRi files you will not have the iSRD option available in SilverFast HDR but only the SRD feature (which is a software based correction).

Please download and test the demo version of SilverFast HDR from our demo site.

Cheers

Re: iSRD missing, Kodachrome does not work

PostPosted: Mon Nov 01, 2010 7:46 pm
by jelen
LSI_Morales wrote:iSRD is a hardware dependent tool, which requires an infrared source to make scans.

Epson V750 is equiped by IR source. SilverFast shows ICE icon also. ICE works (and disables SDR when active). Is it possible than presence of ICE button automaticaly disables iSDR button and shows SDR function only?

LSI_Morales wrote:If you already have SilverFast Ai with your scanner, you might create 64 bit HDRi bit files and open them with SilverFast HDR for correction, if you files do not have the infrared channel scanned in 64 bit HDRi files you will not have the iSRD option available in SilverFast HDR but only the SRD feature (which is a software based correction).

Please download and test the demo version of SilverFast HDR from our demo site.
Cheers


Thanks, it works well. I trayed open HDRi by test version of SF-HDR, it shows iSDR icon and then uses IR chanel.

I will do next tests. Then i will see, witch of ways is best for me (one-step scanning with ICE in SF-Ai only, or 2-step process SF-Ai -> HDRi -> iSDR in SF-HDR).

Re: iSRD missing, Kodachrome does not work

PostPosted: Tue Nov 02, 2010 9:00 am
by LSI_Morales
Dear jelen,

jelen wrote: Is it possible than presence of ICE button automaticaly disables iSDR button and shows SDR function only?


Actually yes, due to patent licensing we are not allow to deactivate the ICE feature on the scanner and replace it with iSRD, but as you have seen, you can save images as 64 bits HDRi and use the iSRD feature in SilverFast HDR.

Cheers

Re: iSRD missing, Kodachrome does not work

PostPosted: Sat Nov 13, 2010 11:09 pm
by jelen
LSI_Morales wrote:Actually yes, due to patent licensing we are not allow to deactivate the ICE feature on the scanner and replace it with iSRD, but as you have seen, you can save images as 64 bits HDRi and use the iSRD feature in SilverFast HDR.
Cheers


Thanks for snswers.

I does some tests antd it seems that ICE will the best solution for me.
Probably I used iSDR wrong way - i used default settings only.

Test examples (it is cut from 6400dpi scan of 35mm negative):
detail without ICE or iSDR - http://www.motocom.cz/sfoto/zadek_silverfast_nic.jpg
the same detail using ICE - http://www.motocom.cz/sfoto/zadek_silverfastICE.jpg
the same detail using iSDR in SF-HDR - http://www.motocom.cz/sfoto/zadek_sfhdr-isdr6400.jpg

Sorry for back photo, but there were diferences best visible.

Re: iSRD missing, Kodachrome does not work

PostPosted: Mon Nov 15, 2010 8:49 am
by LSI_Morales
Dear Jelen,

No need to apologize, you should use what works best for you.

Cheers