[sane-devel] Re: Re: Re: epson 3490 - transparency unit problem

[Oliver Schwartz]

Hi,

> - at 2400 dpi :
> I have done several try, at least a dozen.
> Sometimes it's all dark, sometimes all white, sometimes a
> succession of colored bands, and sometimes I have a good scanning,
> but at least it doesn't scale the entire selection I have made on
> the preview screen. And I have always the shaking between line.
> (and I am sure I have the latest snapshot of the snapscan backend
> and of xscanimage frontend)
>
> - at 3600 dpi :
> it's in part all the same, except that when it's work, the scan
> cover the entire selection I have done. The shaking seems always
> visible, but I am not sure because of the quality of my film.

I can somehow understand that it happens at 2400 dpi. In fact I think 
that 2400 dpi won't ever work and should be disabled, or replaced by 
1800 dpi, which should be ok.

I'm a bit surprised about the effect at 3600 dpi. Can you send me an 
image which shows the effect?

/Oliver