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#1
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Elitechrome 100 Slide Scanning with Coolscan V ED
Hi,
I am a owner of a Nikon Coolscan V ED. The scan quality is a big step forward compared to my former 2500 dpi HP photosmart S20, but I have a few questions. I take my slides with a contax/zeiss 35mmSLR equipment using elitechrome 100 film. 1) It seems to me that there is no improvement in detail resolution when I compare 2500 dpi HPS20 scans with 4000 dpi nikon scams. Is it possible that 2500 dpi is already sufficient for the ISO100 elitechrome? 2) The 4000 dpi (with ICE and GEM function on) in fact creates a grainy, streaky structure in contrary to my old 2500dpi HPs20 scans, for example in blue sky areas of my slides. Is that the already the elitechrome film grain scanned by the nikon? I scanned the slides in glasless frames. I heard the elitechrome is not suited for scanning purposes, but other films are. Is that right, what are they? I also found in scanned B/W negative ISO 50 films grainy, but not streaky structures, but I guess that must be noise or any other disturbance and not the B/W film grain? 3) I found out that 48 bit of color depth improves quality compared to 24 bit, but handling the resulting 114 MB tiff scans is not very practical (zipping does not reduce size). Neither Nikon Scan nor photoshop (ver. 5 limited edition) can save these files as jpeg. Is jpg only a 24 bit file color depth file standard? What to do? Oliver |
#2
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Elitechrome 100 Slide Scanning with Coolscan V ED
"Oliver Kunze" wrote in message ... SNIP Is it possible that 2500 dpi is already sufficient for the ISO100 elitechrome? No, at 4000ppi it should be much better. 2) The 4000 dpi (with ICE and GEM function on) in fact creates a grainy, streaky structure in contrary to my old 2500dpi HPs20 scans, for example in blue sky areas of my slides. Are you looking at 100% zoom? SNIP Neither Nikon Scan nor photoshop (ver. 5 limited edition) can save these files as jpeg. Convert to 24-bit first, or use "Save for web" in Photoshop. Is jpg only a 24 bit file color depth file standard? Yes. Use Photoshop to convert to 8-bit/channel, but only after colorbalancing/tonescaling and sharpening. Bart |
#3
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Elitechrome 100 Slide Scanning with Coolscan V ED
Oliver Kunze wrote:
Hi, I am a owner of a Nikon Coolscan V ED. The scan quality is a big step forward compared to my former 2500 dpi HP photosmart S20, but I have a few questions. I take my slides with a contax/zeiss 35mmSLR equipment using elitechrome 100 film. 1) It seems to me that there is no improvement in detail resolution when I compare 2500 dpi HPS20 scans with 4000 dpi nikon scams. Is it possible that 2500 dpi is already sufficient for the ISO100 elitechrome? At what resolution are you scanning with the Nikon? The resolution can be adjusted... I use LS4000, by the way. 2) The 4000 dpi (with ICE and GEM function on) in fact creates a grainy, streaky structure in contrary to my old 2500dpi HPs20 scans, for example in blue sky areas of my slides. Is that the already the elitechrome film grain scanned by the nikon? I scanned the slides in glasless frames. I heard the I have problems with Kodak material scanned on the LS4000, but since I almost never use Kodak, I am not very impacted. Especially E200 was really, really fatal. Do not forget to *switch off* ROC!! Its really important. ROC helps only if you have really old slides with substantial color fading. Which level of GEM are you using? My experiences with GEM are very positive, as a matter of fact I never saw any comparable tool to GEM. My experiences with the settings a GEM 1 for Provia 100, Velvia 50 GEM 2 for Sensia 100,200 Agfa Precisa CT100 and 200 GEM 2 or 3 for Provia 400, Sensia 400 GEM 3 was enough for negatives such as Agfa Vista 800 or Fuji Press 1600 elitechrome is not suited for scanning purposes, but other films are. Is that right, what are they? I also found in scanned B/W negative ISO 50 films grainy, but not streaky structures, but I guess that must be noise or any other disturbance and not the B/W film grain? B/W material based on silver halide cannot be scanned using IR ICE dust/scratch remover. Have you switched off ICE? 3) I found out that 48 bit of color depth improves quality compared to 24 bit, but handling the resulting 114 MB tiff scans is not very practical (zipping does not reduce size). Neither Nikon Scan nor photoshop (ver. 5 limited edition) can save these files as jpeg. Is jpg only a 24 bit file color depth file standard? What to do? Oliver Why not practical? Its digital photography! We have untold gigs of space and DVD's to archive the data! Keep 48bit scans! I do without exception. I use Vuescan to process raw 48bit files, but for a really fine job you probably need something like Picture Window or than of course Photoshop! Anyway, 48bit is essential if you use slide material with high dynamic range. Wolfgang Faust who makes IT 8 calibration targets wrote that Fujichrome has dynamic range of 4! Thomas |
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Elitechrome 100 Slide Scanning with Coolscan V ED
ThomasH wrote:
I have problems with Kodak material scanned on the LS4000, but since I almost never use Kodak, I am not very impacted. Especially E200 was really, really fatal. Do not forget to *switch off* ROC!! Its really important. ROC helps only if you have really old slides with substantial color fading. Which level of GEM are you using? My experiences with GEM are very positive, as a matter of fact I never saw any comparable tool to GEM. My experiences with the settings a GEM 1 for Provia 100, Velvia 50 GEM 2 for Sensia 100,200 Agfa Precisa CT100 and 200 GEM 2 or 3 for Provia 400, Sensia 400 GEM 3 was enough for negatives such as Agfa Vista 800 or Fuji Press 1600 Any for E100GX and E100S? I have trouble scanning them, grain aliasing perhaps? Cheers, Alan -- --e-meil: there's no such thing as a FreeLunch.-- |
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Elitechrome 100 Slide Scanning with Coolscan V ED
On Tue, 15 Jun 2004 20:27:58 +0200, "Oliver Kunze"
wrote: 2) The 4000 dpi (with ICE and GEM function on) in fact creates a grainy, streaky structure in contrary to my old 2500dpi HPs20 scans, for example in blue sky areas of my slides. Is that the already the elitechrome film grain scanned by the nikon? Yes, it is film grain, and (ironically) it manifests how much better Nikon is. All other scanners use a different light source which "fuzzifies" the image so you don't see the grain. Nikon just shows you what's on the film. This is similar to someone needing glasses looking at a wall and admiring its smooth surface. Then they put on glasses and discover all the bumps, smudges and other imperfections... One advice I read - but don't use myself - is to slightly de-focus (click on manual focus and enter a value by hand). That should smooth out the image somewhat and reduce the graininess. Don. |
#6
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Elitechrome 100 Slide Scanning with Coolscan V ED
"ThomasH" schrieb im Newsbeitrag ... Which level of GEM are you using? My experiences with GEM are very positive, as a matter of fact I never saw any comparable tool to GEM. My experiences with the settings a GEM 1 for Provia 100, Velvia 50 GEM 2 for Sensia 100,200 Agfa Precisa CT100 and 200 GEM 2 or 3 for Provia 400, Sensia 400 GEM 3 was enough for negatives such as Agfa Vista 800 or Fuji Press 1600 I used GEM level 3, ROC off. I further found out that ICE is responsible for the "streaks" between the grain in my scans. Turning ICE off takes them away, but for the price of dust marks in the scan, which is not a good option. 3) I found out that 48 bit of color depth improves quality compared to 24 bit, but handling the resulting 114 MB tiff scans is not very practical (zipping does not reduce size). Neither Nikon Scan nor photoshop (ver. 5 limited edition) can save these files as jpeg. Is jpg only a 24 bit file color depth file standard? What to do? Oliver Why not practical? Its digital photography! We have untold gigs of space and DVD's to archive the data! Keep 48bit scans! I do without exception. I use Vuescan to process raw 48bit files, but for a really fine job you probably need something like Picture Window or than of course Photoshop! Anyway, 48bit is essential if you use slide material with high dynamic range. Wolfgang Faust who makes IT 8 calibration targets wrote that Fujichrome has dynamic range of 4! Since what version number is Photoshop fully capable (filters etc.) of handling 48bit? I understand elements 2.0 which came with my Coolscan is not. Is PS 6, which is available at a fair price? Thomas Oliver |
#7
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Elitechrome 100 Slide Scanning with Coolscan V ED
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#8
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Elitechrome 100 Slide Scanning with Coolscan V ED
In rec.photo.equipment.35mm Oliver Kunze wrote:
Since what version number is Photoshop fully capable (filters etc.) of handling 48bit? I understand elements 2.0 which came with my Coolscan is not. Is PS 6, which is available at a fair price? You probably want Photoshop CS. However, if youare not totaly set on photoshop you could simply go here rsb.info.nih.gov/ij ij-plugins.sourceforge.net/plugins/imageio and download imagej and image i/o plugin that will handle 16 bit (and 32bit & fp) depth in tiff. You can then do lossy export as jpg from it. Oliver -- Sander +++ Out of cheese error +++ |
#9
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Elitechrome 100 Slide Scanning with Coolscan V ED
The URL you posted has apparently been 'mugged' by some form of redirection command on
your server. This one might work better for "the rest of the world." http://sourceforge.net/projects/freeimage/ "Sander Vesik" wrote in message ... In rec.photo.equipment.35mm Oliver Kunze wrote: Since what version number is Photoshop fully capable (filters etc.) of handling 48bit? I understand elements 2.0 which came with my Coolscan is not. Is PS 6, which is available at a fair price? You probably want Photoshop CS. However, if youare not totaly set on photoshop you could simply go here rsb.info.nih.gov/ij ij-plugins.sourceforge.net/plugins/imageio and download imagej and image i/o plugin that will handle 16 bit (and 32bit & fp) depth in tiff. You can then do lossy export as jpg from it. Oliver -- Sander +++ Out of cheese error +++ |
#10
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Elitechrome 100 Slide Scanning with Coolscan V ED
"RSD99" wrote in message ... The URL you posted has apparently been 'mugged' by some form of redirection command on your server. SNIP Both links work fine on my computer. rsb.info.nih.gov/ij ij-plugins.sourceforge.net/plugins/imageio Bart |
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