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Input/Output/Workflow Scanning, printing, color management, and discussing best practices for control and repeatability

Scanning Objects

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  #41  
Old 05-09-2002, 09:46 PM
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G. Couch G. Couch is offline
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Jerry - Jeanie hit the nail on the head. The only reason I know that is because I used to have the Canoscan 1240 before I got my current scanner! One of the reasons I got rid of it, was because of the small depth of field. I like to scan small paintings, monoprints, and etchings I have done over the years, and the textured paper some of these were made on was giving the scanner fits. On nearly every hi-res scan, I had to place a heavy book on top, just to hold the paper perfectly flat.

For cleaning, I just use an alcohol and distilled water solution. The real key is to buy some lint free cloths. Most people just use paper towels, but glass can build up a static charge and pull every little piece of lint and dust back down. I usually do a quick cleaning anytime I'm going to scan an object at high resolution or if I'm scanning transparencies.

Another tip is to take a flashlight and shine it at a angle to the glass. This will allow to see far more dust than just using regular room lighting.

This is a scan of a leaf I made last fall when I still had my 1240. You can tell in the zoomed in section just how small the depth of field is. For this scan I placed a white sheet of paper over the leaf and then placed a thick phone book on top.
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  #42  
Old 05-10-2002, 01:04 AM
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For cleaning I used pre-packaged wipes made by Glass Plus (a Windex clone). Then, since the little scanner barely touches the full usability of one wipe, I also clean my monitor, and my tv, and my desk, and the window...
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  #43  
Old 05-10-2002, 02:29 PM
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Greg and Doug

Thanks for the cleaning tips.. I am disappointed to hear about the 1240 but it does a really good job on the prints that I bought it to scan.. Maybe a new scanner in the future to do some of the more interesting scans.

Thanks
Jerry
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  #44  
Old 05-10-2002, 02:57 PM
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Okay Greg - you got me! Here's my attempt of a scan of a 3D object on a cheap flatbed. This is right out of the scanner except for the red writing, which signifies approx. how far (by reading a ruler) that portion is above the scanner bed.

Ed
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  #45  
Old 05-10-2002, 02:59 PM
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And the close-up.

Ed
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  #46  
Old 05-11-2002, 11:07 AM
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CJ Swartz CJ Swartz is offline
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My Epson 1200's version of a grinning cat - ceramic, of course.

I'll have to try measuring the depth of field like Ed has, but this guy shows "some" depth. (some = non-technical term for too lazy to measure)
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Last edited by CJ Swartz; 05-11-2002 at 11:13 AM.
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  #47  
Old 05-11-2002, 12:19 PM
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Love it!

Ed
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  #48  
Old 05-11-2002, 04:42 PM
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DJ Dubovsky DJ Dubovsky is offline
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Oh that's so cute.
DJ
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  #49  
Old 05-11-2002, 05:15 PM
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Good one CJ. I hate my canoscan.

Jerry
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  #50  
Old 05-11-2002, 09:35 PM
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Jerry, don't feel too bad, we all had an earlier model of scanner that doesn't seem wonderful now, but when we first got it -- it was still great to finally be able to scan a print into PShop (or PSP, etc.). When we all get our new StarTrek replicator scanners (which provide 3D replicas of whatever we aim it at), we won't even be impressed by the drum scanners.

Sorry, StarTrek Inc. just informed me that they have extended their release date from July 2002 to April 1, 2020.
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