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<!-- received="Thu May 7 21:06:58 1998 PDT" -->
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<!-- sent="Fri, 8 May 1998 00:08:15 -0400 (EDT)" -->
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<!-- name="Paul D. Robertson" -->
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<!-- email="proberts@clark.net" -->
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<!-- subject="Re: [umax] Can't use 10-bit scan: "preview cannot handle depth 16"" -->
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<!-- inreplyto="Pine.LNX.3.96.980507190015.260A-100000@steerpike" -->
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<title>sane-devel: Re: [umax] Can't use 10-bit scan: "preview cannot handle depth 16"</title>
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<h1>Re: [umax] Can't use 10-bit scan: "preview cannot handle depth 16"</h1>
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<b>Paul D. Robertson</b> (<a href="mailto:proberts@clark.net"><i>proberts@clark.net</i></a>)<br>
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<i>Fri, 8 May 1998 00:08:15 -0400 (EDT)</i>
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<p>
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<ul>
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<li> <b>Messages sorted by:</b> <a href="date.html#93">[ date ]</a><a href="index.html#93">[ thread ]</a><a href="subject.html#93">[ subject ]</a><a href="author.html#93">[ author ]</a>
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<li> <b>Next message:</b> <a href="0094.html">Matt Martin: "Re: DS-7 Backend"</a>
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<li> <b>Previous message:</b> <a href="0092.html">becka@rz.uni-duesseldorf.de: "Re: [umax] Can't use 10-bit scan: "preview cannot handle depth 16""</a>
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</ul>
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On Thu, 7 May 1998, Jim Ford wrote:<br>
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<p>
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<i>> On Wed, 6 May 1998, Paul D. Robertson wrote:</i><br>
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<i>> </i><br>
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<i>> > BTW: The transparency adapter on the Astra 1200S doesn't seem to auto </i><br>
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<i>> > shut off like the flatbed lamp, and i have to scan from the bed to get it </i><br>
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<i>> </i><br>
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<i>> Hi Paul.</i><br>
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<i>> </i><br>
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<i>> Is the transparency adaptor worth getting - will it handle negs OK?</i><br>
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<i>> In the U.K. it costs the same price as the scanner itself!</i><br>
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<p>
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I've mixed feelings at this point. I originally tried a mini lightbox <br>
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upsidown over the glass, and that didn't get appreciably better results <br>
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than scanning in flatbed mode. I just tried some gamma stuff, but rather <br>
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than doing exactly as Oliver suggested (Yes, I'm hardheaded), I put "2" <br>
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into the preview gamma box, and now it's scanning way too brightly. So <br>
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far, I've been unable to get it back to "normal" (erasing <br>
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~/.sane/xscanimage/* and power cycling the scanner seems not to have had <br>
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an effect - its almost time to read the docs). <br>
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<p>
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The adapter seems to work, and *if* I can get the gamma correction working <br>
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right, I'm sure it will be well-worth it for me. In its current incantation, <br>
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it works _alright_ for bright slides, as long as I add about 93 to the <br>
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Image->Brightness/Contrast sliders in the GIMP. Darker slides don't scan <br>
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well, and negatives are much worse. <br>
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<p>
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Once I get things back to normal, I'll see what I can do with the gamma <br>
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stuff, and report my results back to the list.<br>
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<p>
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Since I've got some 6x6 and 6x4.5 slides and negatives, and there aren't <br>
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a large number of alternatives, I'm in this for as long as I can stand <br>
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it, or until someone comes out with an inexpensive 120/220 scanner that <br>
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will work with sane. <br>
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<p>
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Lest this come off as negative (no pun intended), I'm amazed at the <br>
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ammount of effort and progress the SANE team has made, especially <br>
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Oliver's progress with color (colour) on the 1200S. I bought the 1200S <br>
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as soon as the price and Oliver's efforts coincided, and I'm really happy <br>
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that I did. It's so close to meeting all of my needs that I'm very <br>
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optomistic.<br>
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<p>
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Paul<br>
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-----------------------------------------------------------------------------<br>
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Paul D. Robertson "My statements in this message are personal opinions<br>
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<a href="mailto:proberts@clark.net">proberts@clark.net</a> which may have no basis whatsoever in fact."<br>
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PSB#9280<br>
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<p>
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<p>
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<p>
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<pre>
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--
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Source code, list archive, and docs: <a href="http://www.mostang.com/sane/">http://www.mostang.com/sane/</a>
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To unsubscribe: echo unsubscribe sane-devel | mail <a href="mailto:majordomo@mostang.com">majordomo@mostang.com</a>
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</pre>
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<p>
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<ul>
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<!-- next="start" -->
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<li> <b>Next message:</b> <a href="0094.html">Matt Martin: "Re: DS-7 Backend"</a>
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<li> <b>Previous message:</b> <a href="0092.html">becka@rz.uni-duesseldorf.de: "Re: [umax] Can't use 10-bit scan: "preview cannot handle depth 16""</a>
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