Oversampling of 6x7 transparency

[roamer5]

When sacnning 6x7 transparencies and using 8x or 16x oversampling, Silverfast scans only a small section of the transparency and...nothing else. It will take 30-40 minutes and provide just the smallest section of the image upon completion!

Silverfast does sample and scan beautifully at 1x, 2x, 4x but nothing higher. Is it not possible to sample more than 4x?

Using Silverfast version 6.2.1r5.

Thank you.

Sorry about lack of info...
120Tf scanner, Win XP, Photoshop CS using 1.5GB Ram
Jack

[LSI_Bruhn]

Dear Jack,

could you please explain a little bit more ?

- which scanner ?
- which OS ?

[roamer5]

Sorry about lack of info...
120Tf scanner, Win XP, Photoshop CS using 1.5GB Ram.

[LSI_Bruhn]

Dear Jack,

first of all, 16 times oversampling really takes quite a long time.

Let me ask you some questions:

Does this happen while scanning in Photoshop ?
- Maybe lack of memory reserverd for Photoshop itself or
- to less memory for the plug-in reserved ?

Or does this happen in the stand-alone version, too ?

[roamer5]

Yes, the problems occur in both Photoshop CS and standalone.
16x does indeed take quite awhile ( I assume) but I've not been able to scan at this setting as the problems occur.

We must archive 6x7 transparencies at 16 bit 20x30 @300 dpi and 1,2 & 4x scans are ok but 8x and 16x don't work. It would be very good to archive at least at 8x.

Thank you for your response.

Jack

[LSI_Bruhn]

Dear Jack,

this issue should be solved with our latest version.
If you are still have problems, contact the support please.

kind regards

[MicroSF6]

i have the same problem, the same results: i can initiate a scan in 16x or 8x multiple scan mode, but doing so results in an extremely distorted ("stretched") and merely partial scan image, a severey cropped and distorted version of a very small section of the much larger film image that i select for the scan. i am using the microtek artixscan 120tf with mac osx 10.3.9 with 2 gigs of RAM on an apple G5 1.8 GHz dual-processor tower (PLENTY of RAM and processing power). i have had this problem with the last 2 or 3 versions of silverfast ai 6. i was told by your representatives via e-mail 2 or 3 versions ago that you would "fix it in the next version." i have now updated to silverfast ai version 6.4.2r5d(MicroIT8). the problem is still not fixed: when i scan in 48-bit mode, non-raw (not 48-bit HDR but just 48-bit), i can multiple scan at 1x, 2x, 4x, and 8x, but not 16x. I now need to be doing my scanning in raw mode (48-bit HDR color), and in that mode I cannot multiple scan 16x or 8x without getting the same kind of extreme distortion and arbitrary severe cropping of the image. please note: this does not happen with scans of 35 mm film; it does happen when I scan 6 x 7 cm film.

this is extremely frustrating and disappointing. I need to be able to do raw scans in 16x Multiple Scan mode. would using AI studio solve this problem? if so, could you please provide it to me free of charge? please give me a solution.

sincerely,

mark