Re: Epson 10000XL scanner and i1 profiler
Re: Epson 10000XL scanner and i1 profiler
- Subject: Re: Epson 10000XL scanner and i1 profiler
- From: MARK SEGAL <email@hidden>
- Date: Mon, 01 Sep 2014 07:04:24 -0700
Hi Florian,
Wasn't worried and I got the spirit of your comment. I was technically interested, as a person with quite some years of scanning experience under my belt (Scanning Workflows ), to examine your comment in the context of both this thread and user experience. I agree with you that it would be interesting to see rigourous comparisons of those discontinued high-end behemoths, versus the current and recent crop of the better prosumer models. I have either worked with or tested about half a dozen of the latter - the better ones - and didn't experience banding or unevenness of illumination. My tests, however, revealed without exception that tested resolving power falls quite short of advertised resolution. This was not a revelation to an industry specialist with whom I peer-reviewed my findings. I also considered that perhaps the testing technology itself is defective, but that seems questionable. The line pairs printed into the target are clearly visible at all
resolution levels seen through a 30X microscope, so unless the viewing and printing of these scanner readings are impaired at the level of an NEC PA271 display or an Epson 4900 printer (I doubt), advertised resolution is usually below revealed resolving power. The scanner sensors may allow for the advertised resolution, but save for the qualifier about the testing above mentioned, these scanners are probably lens-constrained. That said, the DR and the resolution of the best prosumer scanners these days are high enough to make good quality prints from 35mm film media at least to A3 size, provided the user knows how to use software to advantage. Much also depends of course on the technical quality of what's on the media and the media itself.
All that is why I had reservations that Peter's problem is hardware-related. My first thoughts turned to software settings and my second thoughts - en passant - to the brightness or reflective character of the media - on the latter of which Ernst has explored in some depth; on reflection (pun intended), it would appear that the character of the media may well be the real culprit crushing the highlight detail; if so it could be that this is best overcome using a DSLR with a good macro lens and an appropriate lighting set-up to catch the paper texture.
Mark__________________________________________________
From: Florian Höch <email@hidden>
To: MARK SEGAL <email@hidden>; "email@hidden" <email@hidden>
Sent: Monday, September 1, 2014 7:35:44 AM
Subject: Re: Epson 10000XL scanner and i1 profiler
Hi Mark,
don't worry, my comment wasn't all that serious. Still, I wonder how
those devices would compare to a Lanovia, Nexscan or some other
discontinued high end devices (the main problem I see with todays
affordable scanners is actually less the resolution, but things like
evenness of illumination - or rather lack of - and artefacts like
banding. I have used a Minolta medium format film scanner in the past
though and it produced pretty good scans).
Am 01.09.2014 um 03:37 schrieb MARK SEGAL:
> Hi Florian,
>
> Up to you not to acknowledge as you see fit :-), but Peter referenced
> his Epson 10000XL. It is advertised to have 2400 dpi resolution, 3.8
> DMax. The Epson V750, while for smaller maximum documents size, is
> advertised to have 4800 or 6400 dpi resolution and 4.0 DMax. In the film
> realm, the Nikon 5000, Nikon 9000, Minolta 5400, Minolta Multi-Pro and
> Imacon 343 models can all resolve film to the satisfaction of many
> professional and prosumer users and technical reviewers, and for the
> Nikon models at least, people are paying well above their erstwhile new
> prices to buy resale ones. Yes, there is (discontinued) higher-end
> professional stuff out there, but the purpose of my suggestion was to be
> relevant to the context of the equipment mentioned at the outset of this
> discussion. Are you suggesting that Peter should scrounge the resale
> market for more upscale equipment in order to solve his problem, and do
> we even know if it would?
>
> Mark
--
Florian Höch
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