Thanks Bill, appreciate your efforts. The bottom line from your review taking three (FS4000US, SS4000 and CoolScan 4000ED)
1. Shadow details (apparently reflects dynamic range) winner: Nikon CoolScan 4000ED Runner-up: SS4000 FS4000US takes third place. 2. Sharpness winner: FS4000US CoolScan 4000ED and SS4000 are about same in this department probably there might be barely noticeable difference towards Nikon (not sure) 3. Grainess winner: FS4000US - the smoothest pattern LS400ED and SS4000 are probably at the same level while additional benefit might go to Nikon thanks to his GEM feature (reportedly to be effective) I've heard and read in various reviews about LS4000ED's focusing problems at the frame edges Since the slides or negatives aren't perfectly flat even when framed and LS4000ED uses AF on some predefined point on the film surface, it might lack enough DOF to count for uneven flatness of the original. You apparently gained extensive experience with LS4000ED, so can you confirm that ? Canon's FS4000US is likely to use similar focusing technique as well, but seems to produce edge-to-edge sharp images continuously (given perfect original, of course). That leads to the conclusion that Canon AF mechanism provides greater DOF which perfectly accommodates bended originals. BTW, Minolta scanners use free focus idea. I can understand it as providing constant focus with very deep DOF to accommodate bended originals. It would be interesting to compare dynamic ranges of FS4000US and SS4000 though... Regards, Alex -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Bill Fernandez Sent: Wednesday, October 03, 2001 18:38 To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: RE: filmscanners: Canon's scanner Alex-- Last night I compared scans of the face on Kodak's Q-60 Ektachrome transparency targets from the LS4000, SS4000, FS4000 and a Howtek drum scanner and a ScanMaker 8700 flatbed Scanner and felt that: o Of the 35mm film scanners the Canon had the finest grain pattern, very much like the drum scanner's. o The Nikon had the best shadow detail: The Canon clealy blocked up before either the Polariod or Nikon. o The film grain of the Nikon was the most distinct of all scanners, yet when viewed from greater than 4 feet nonetheless seemed slightly sharper than the Polaroid (don't remember how it compared with the Canon). o The ScanMaker 8700 scan looked just as good as the drum scan in terms of grain, sharpness, color balance, resolving hairs (such as the eyelashes), but the shadows blocked up and were filled with green noise much worse than any of the scanners. Technical details: o The monitor is a 22", Mitsubishi 2040u calibrated and profiled with PhotoCal and the Monitor Spyder. o The Nikon scan was made by me and output with the Wide Gamut profile. This profile is the best I've found of the ones Nikon supports for pulling out shadow detail. It makes a substantial difference over, say, Adobe RGB. o The Canon scan was taken from the Hively website, http://www.hively.com/canoscan/. o I had two Polariod scans: one from the VueScan website (http://www.hamrick.com), the other from Tony Sleep's website. o The Howtek drum scan was taken from Tony Sleep's website. Note that he had to sample it down to make it match the size of his other scans, so a significant amount of detail must have been lost which would explain why the ScanMaker 8700's scan had as much detail (except in the shadows). It was also made from a 4 x 5 target, which inherently has lots of detail that the 35mm targets don't. o The ScanMaker 8700 scan was made from a 4 x 5 target by me at it's maximum optical resolution of 1200 dpi. Comments: o Shadow detail is very important to me, and I'm finding that using the analog gain control and outputting to the Wide Gamut color space my Nikon LS4000ED is doing quite well on that account. Clearly way better than the Canon. Possibly better than the Polaroid with dark slides where the analog gain can be bumped up without blowing out the highlights. o The sharpness and fineness of grain of the Canon is beautiful, and note that Norman Koren (www.normankoren.com) who's extremely fussy about sharpness (I know him :-) seems pleased with his. o The GEM grain reduction feature on the Nikon works VERY well, and I find that GEM scans sharpen up very nicely whereas straight Nikon scans accentuate the grain so much that you can only sharpen them a tiny bit. o I have noticed no increase in shadow detail nor reduction in shadow noise using multisampling (I've tried up to 16x) on the Nikon. Conclusions: I want a drum scanner! Short of that it seems to depend on what tradeoffs you want to make between cost, shadow detail, etc. Good luck, --Bill At 4:21 PM +0200 3-10-01, Alex Z wrote: >The view things I'm still concerning about thinking about Canon FS4000US: >1. Somewhat reduced Dynamic range (seems to be 3.4) comparative to the >rivals (manufacturer claimed 3.6 for SS4000 and 4.2 for CoolScan 4000ED). >2. The reviews gave me an impression that it even better suited for >negatives rather then slides (there is opposite problem with rest of >the scanners). >3. Lack of multipassing capability like of Minolta Elite and Elite II. -- ====================================================================== Bill Fernandez * User Interface Architect * Bill Fernandez Design (505) 346-3080 * [EMAIL PROTECTED] * http://billfernandez.com ======================================================================