Hi Tony,
Thanks for your comments. In the case of the DUal Scan II, it is a USB
interface, rather than SCSI. The "tram lines" I am speaking of are
specific, in that they occur in certain exactly repeatable locations,
are different locations (and numbers) depending on the color channel,
and they are always one pixel wide. In the case I am speaking of, this
is an apparent hardware and or calibration defect.
Regarding the use of light diffusers with the Minolta scanners, I have
been asked to hold off on publicizing the web site URL which shows the
effectiveness of the diffuser with negative films, while Minolta gets to
review the situation and responds.
In the meantime, people who own Minolta scanners and are having to deal
with the "dirt/dust/scratch" levels when color negs are scanned
(specifically), may wish to experiment with diffusers.
Art
Tony Sleep wrote:
> On Fri, 18 Oct 2002 02:22:59 -0700 Arthur Entlich (artistic-1@shaw.ca)
> wrote:
>
>
>>For people who dodged the QC bullet and got one without "lazy sensor"
>>lines, and for those who either do not have the calibration problems, or
>>find the transient nature not much of an issue, I have some potential
>>good news.
>>
>
> I recently got sent sample scans by a Minolta user showing
> periodic tramlines across the frame when using Vuescan, but not Minolta
> s/w. My response:-
>
>
>>>If you go to you will be able to see to cropped versions
>>>
>>>
>>>
>>How weird.
>>
>>From previous experience I would look at
>>- is the CPU fast enough?
>>- is there enough RAM?
>>- is there enough disk space?
>>- does the disk need defragging?
>>- is there some other program actively running which is stealing CPU
>>cycles?
>>
>>Any of the above, or a combination, may be responsible. VS is a bit
>>sensitive to such issues, and I have had spurious lines in the past due
>>to the last, cured by not running the offending prog. Check your startup
>>progs and use Start|Run|Msconfig to temporarily disable everything for a
>>test.
>>
>>One other thing : your SCSI controller should be set to asynchronous
>>operation. If it's set to synchronous, this sort of thing may happen. It
>>will probably tell your during boot-up, and if an Adaptec, Ctrl-A will
>>get you into the config interface.
>>
>>If none of this helps, I'd suggest asking Ed - edhamrick@aol.com - he is
>>usually helpful about such things. You could also ask on the
>>filmscanners list, in case any other Minolta owners have seen similar.
>>As you say, it doesn't seem to be a scanner fault.
>>
>>Regards
>>
>
> This may of course be a different fault.
>
> Re diffusers, yes, it's an obvious thing to attempt and I had wondered
> about experimenting myself, since somewhere I have some thin plastic
> diffuser sheet. I still think a filter drawer, just like enlargers, would
> be useful on a filmscanner. Lightsource design is a subtle business, and I
> doubt it gets the attention it should, sidelined by technology.
>
> Regards
>
> Tony Sleep -
> Online portfolio & exhibit + film scanner info & comparisons
>
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