iSRD scanned photo is poor quality compared with preview

[melbury]

Hi, I need some advice

I am scanning 35mm negatives at 225 dpi

In preview of iSRD all looks good - but the final image is poorer qulaity - where am I going wrong?

The attached file shows preview in SF8 and on right shows imagein windows viewer - you can see dust remains on the face cheeks for example.

Capture.jpg (215.59 KiB) Viewed 3584 times

Why does it look so good in preview then poor in final scanned file?

Hope someone can help

Thanks
Mike

[LSI_Morales]

Hi Mike

Could you please post a screenshot of the resulting file to illustrate your point?

Thank you

[melbury]

Hi Alejandro, If you scroll to the right you can see the resulting image in windows viewer - it looks the same in Adobe lightroom as well. I can send you the actual file if you wish ? or I can try and scan at different resolutions and send you these - please advise

Thanks
Mike

[LSI_Morales]

Hi melbury

I downloaded the picture and saw the resulting file, it is not really very clear due to the low res.

I would like to determine if this behavior is relative to the scanning resolution. The infrared channel in the scanner does not have the same resolution as the rgb channels and I suspect the problem might lie here.

Could you please make a test to see if the situation changes with different scanning resolutions?

Thanks in advance

Kind regards

[melbury]

OK, I've done some more testing.

The problem only seems to appear when a batch is processed. I scan a strip of 6 negatives after copying frame settings to all frames and one (or more) will have very poor correction compared to when it is processed individually.

Is there a way I can get you high res images / screenshots? You have my contact details on file.

Could you run some batch tests at format 6 x 4 and 225 dpi on a strip and see if you get consistent iSRD

Thanks
Mike

[LSI_Morales]

Hi Mike

Is there a way I can get you high res images / screenshots? You have my contact details on file.

You can upload the pictures to dropbox and send the link for us to download them

I will run some tests here to see if this issue can be reproduced.

Thanks for your info

Cheers

[melbury]

OK, this is a bach of 6 frames.

All the tiff are the scanned results - perfromed by copying settings to all frames

If you look at (4) you can see the 'mark up' on the face clearly - the repair has not been doen well.

If you look at pdf it shows what silverfast 'sees' at iSRD

IF I export a singel image it's OK

When I scan a batch I seem to get these 'random?' poor quality images.

Links are :

I can't seem to share a folder unless I have your email address

http://db.tt/tvHevtOo
http://db.tt/IkqYNEqt
http://db.tt/RPL7Ufxz
http://db.tt/FxEBDGjt
http://db.tt/VeOIMASG

http://db.tt/dw4YXohC
http://db.tt/5EKfiNCd

[LSI_Morales]

Hi Melbury,

I got access to your pictures, thanks.

I tested this issue and could reproduce the problem as described. I have reported this for bugfixing. In the meantime I suggest you try to go 1:1 overview on each of the pictures before performing the batchscan. In that way corrections will be correctly done.

Thank you for your cooperation.

Kind regards

[melbury]

This is great news I look forward to a fix.

How will I know when it is fixed? as I have thousands of negatives to scan and woudl like to do them in groups of 24 to save time.

I'm running on the trail version 8 (I have full V6.6) and would like confidence it's fixed before purchasing the upgrade; I have been waiting in the hope I could use iSRD on a batch and it is now so very close...

Do 'bug finders' get free upgrades ?

Thanks

[LSI_Morales]

Hi melbury

How will I know when it is fixed? as I have thousands of negatives to scan and woudl like to do them in groups of 24 to save time.

This forum thread is linked to the internal request. As soon as an update is available we will inform it here.

I'm running on the trail version 8 (I have full V6.6) and would like confidence it's fixed before purchasing the upgrade; I have been waiting in the hope I could use iSRD on a batch and it is now so very close...

Actually if you do not use 1:1 preview you will not have this issue, or if you do the 1:1 preview on all 24 pictures.

Do 'bug finders' get free upgrades ?

No, not really.

Kind regards

[melbury]

HI,

I've re-scanned batch without 1:1 preview and still find approx 33 % images are showing the iSRD defects in grey on the final image.

If I do preview on iSRD - how do I then move to next frame to preview next?

Thanks
Mike

[LSI_Morales]

Hi Mike

I've re-scanned batch without 1:1 preview and still find approx 33 % images are showing the iSRD defects in grey on the final image.

Hi I tried to reproduce the problem myself twice and iSRD always worked correctly.

If I do preview on iSRD - how do I then move to next frame to preview next?

You turn off 1:1 preview, then select the next picture, go into iSRD and activate 1:1 preview again.

Cheers

[melbury]

Thanks Alejandro

Do you test with the same scanner I have?

As I cannot get successful batch scans with no preview.

Look forward to update.

Thanks Mike

[melbury]

Just repeated test with latest 8.0.1r7 and I still get over 50% images with greyed defects showing when I do a batch scan with 'no preview' on iSRD

Look forward to an update

Thanks Mike

[LSI_Morales]

Hi Mike,

Thanks for your info, I have submitted this to the internal report for the bug fixing. As soon as we have more news we will inform you guys here.

Kind regards