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[filmscanners] Re: SS 120 questions



Hi Simon,

I haven't yet taken the time to learn SilverFast.  I do know that
SilverFast allows for manual focus on the SS4000+ and I assume on all
other Polaroid scanners, while it is not an option with Insight.

Is it possible you aren't engaging focusing at all while using
SilverFast, and as a result you are getting hit and miss focus?
(keeping in mind how wide a DOF the SS120 offers).  I can't give you the
specific procedure, having not yet studies SilverFast, but are you sure
you have been either using autofocus with it, or are engaging the manual
focus properly.

On my Minolta, which allows for manual focus within the manufacturers
software, one can move the focus target to anywhere within the preview
window.  Probably similar with Silverfast.

The only other easy to think on cause of variable focus is if the
gearing is off creating an angled carrier, which could be a mis-moulded
carrier or a problem within the scanner gearing.

But do make sure you are engaging focus within Silverfast first before
assuming a hardware problem.

Art

Simon Lamb wrote:

> Jim
>
> Thanks for your reply.  On the film flatness issue, I do not think it is
> flatness as I can do five scans without touching the film and two will be
> pin sharp and three will be soft.  If it was bowing of the film I would
> expect them to all show the same sharpness or flatness.  Guess I might have
> a unit with a defective focus mechanism.
>
> Another question.  I presume the circle with the cross inside that
> Silverfast displays in the middle of the prescan image is showing where the
> focus was taken.  Is there any way to adjust or move this to a different
> area on the film?  It does move when you re-crop the pre-scanned image but
> it would be great to choose a focus areas, much like Vuescan permits with my
> LS 30.
>
> Thaks.
>
> Simon
>
>>
>>Simon Lamb wrote:
>>
>>
>>>I have two questions for other SS 120 owners:
>>>
>>>1.  Does your machine make noises like something inside is vibrating,
>>>
> almost
>
>>>sounds like it is loose and rattling, during the autofocus procedure?
>>>
>>Simon, my machine is noisy - a high pitched noise during auto focus and a
>>
> kind of
>
>>whininning/rattling noise during the scan.  I think some of that noise is
>>
> from stepper
>
>>control.
>>
>>
>>>
>>>2.  I have done some focus tests and found that there is inconsistency
>>>between the focus when scanning frame one on a 6X6 strip and scanning
>>>
> frame
>
>>>three.  In some tests, frame one is very obviously more in focus and
>>>
> sharper
>
>>>and in other tests frame three is the more in focus and sharper.  It is
>>>
> due
>
>>>to the film flexing slightly when the holder is closed.  This
>>>
> inconsistency
>
>>>is not good as it is causing me to have to redo scans until I get the
>>>
> best
>
>>>focus, for which I do not have time.  Has anyone else noticed this or
>>>
> got a
>
>>>resolution/workaround?
>>>
>>I have had a couple of instances where the film tried to bow in the
>>
> carrier.  But
>
>>repositioning the film and locking it down again seemed to correct it.
>>
> I've had little
>
>>problems with film not being flat.  Having said that, I'll still go for
>>
> the glass carrier
>
>>when it becomes available.
>>
>>Jim
>>
>>
>>>
>>>Thanks.
>>>
>>>Simon
>>>
>>>
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