iSRD not an option for raw negative scan

[BJB]

I am not sure what I did different.....last time I used workflow pilot to generate some RAW negative scans and when I opened them in HDR I had the option to use iSRD.

I just made 3 scans of negatives using the same process and now in HDR my only option is SRDx.

Of course I want to use the infrared channel of my Plustek scanner. What setting is incorrect in Silverfast for scanning or Silverfast HDR for editing?
It appears I have the RAW file with the infrared channel because my windows explorer preview looks appropriately awful as it always does.

Any help appreciated.

Thanks,
BJB

[LSI_Ketelhohn]

Dear BJB,

You need to select the 64 Bit HDRi RAW archive format. This format stores the infrared channel.
Also make sure you do not open these files in other software. Some applications can not handle theses files correctly and damage important information.


Kind regards,
Arne