Re: [Digital BW] Sprintscan120/Silverfast6 & Glass holder sharpness problem
2003-05-03 by Martin Wesley
----- Original Message ----- From: "frankg_photo" <fh.gross@...> To: <DigitalBlackandWhiteThePrint@yahoogroups.com> Sent: Friday, May 02, 2003 8:20 PM Subject: [Digital BW] Sprintscan120/Silverfast6 & Glass holder sharpness problem > Martin, > Thanks for this - all good points. > > My issue with SF is that film in the glass holder will not be > focused - although the focus icon is "on" in the SF interface it does > not actually focus the hardware (on the film plane) ! Frank, Keep bugging SF techsupport and perhaps bug Polaroid too. If they are bundling SF with the scanner they have an obligation too. > > Maybe someone else with the Sprintscan, Silverfast and the Glass > Holder can jump in here and tell what their focus experience has > been ? I didn't use the scanner much with the glass holder as I got the holder about the same time I got the Howtek. I don't recall any focus problems. > > Since trying Insight I have had better focus - but there are 2 things > that I miss already compared to SF: > 1. the Histogram with the little sliders to bring the scan into the > high & low range. There is a simple Levels/Histogram tool with sliders. Getting to it is not obvious and unfortunately I no longer have the software installed to tell you how to open it but it is there. > 2. For the occasional col transparency there is no 'calibration' like > the IT8 supplied with SF If you do a raw scan with Insight I believe you should be able to apply calibration when you open the tiff file with SF HDR, but color is not my strong point. > > To clarify your workflow described below; you choose the 16 bit Raw > scan option in Insight, save it as a Tif. Then open SF HDR and import > it. Make global adjustments, then export to PS. ? Yes. In Insight you choose to scan to file and it opens a window that let's you choose the file type. One of the choices is 16-bit raw tif. When you open the file with SF HDR you have all the same tools you have in regular SF. Remember that SF is just manipulating the data stream from the scanner. The only difference between using SF directly and the RAW-to-SF HDR method is that SF is doing the adjustments on the fly. Leaving the glass holder out of the workflow for the moment, try scanning in SF and make a note of your settings. Do a raw scan in Insight and open it with SF HDR using the same settings you used with SF and see how the results compare. Martin > > DigitalBlackandWhiteThePrint@yahoogroups.com, "Martin Wesley" > <mwesley250@e...> wrote: > > Frank, > > > > I've used the Sprintscan 120 and SF before I got my Howtek. I would > not have > > bothered to move up to the Howtek except I needed a way to get top > quality > > scans of 4x5 negs. I would have to give the Howtek the edge in > sharpness at > > the scan level but, as Antonis pointed out, it is the print > sharpness that > > really matters and the difference is minor. I think you would be > hard > > pressed to look at two prints and say one was from a Howtek scan > and one was > > from a SS120 scan. > > > > A year or more back Tim Spragens and I compared the output of the > SS120 and > > the equivalent Minolta unit. The scans were not precisely the same > but we > > concluded there was no difference in quality. > > > > Silverfast has often been a pain though. When the scanner came out, > there > > was a bug involving SF, Window 2000 and Firewire connections. For a > > considerable time I did raw scans using Polaroid Insight. I then > opened the > > raw file either with the Silverfast HDR module, which you should > have, or > > directly into Photoshop. > > > > This is a very good workflow and essentially how I use SF with my > Howtek. I > > do a raw scan to a TIFF file and then "scan" the data using SF HDR > making > > first overall adjustments and outputting a 16-bit file to PS. The > has the > > advantage of being able to make different corrected "scans" very > quickly. > > > > The other thing to watch with Silverfast is that they will get > around to > > fixing the problem. (I actually thought they had corrected this > particular > > one.) They also occasionally lose fixes when releasing upgrades. > The trick > > is to check their site often and stay on top of the often frequent > upgrades > > and save all the versions. In the meantime just use Insight. As far > as I can > > tell it's a fine okay program for B&W work. > > > > I also do all my sharpening in PS and not during scanning since I > find the > > amount needed is print size dependent. > > > > Martin Wesley > > > > http://www.borderless-photos.de/guests.html > > > > > > > > ----- Original Message ----- > > From: "frankg_photo" <fh.gross@s...> > > To: <DigitalBlackandWhiteThePrint@yahoogroups.com> > > Sent: Friday, May 02, 2003 2:10 PM > > Subject: [Digital BW] Re: Sprintscan120/Silverfast6 (& Glass > holder) scan > > sharpness problem > > > > > > > > > > Thank you for the offer to test scan a couple of frames - maybe > I'll > > > take you up on this. > > > > > > Yes I have been in email contact with SF tech support all day - it > > > seems that the Focus button which you refer to that greys out or > is > > > col (off/on) is not effective with the glass holder! > > > > > > In other words there is effectively no scanner focusing when the > > > glass carrier is used. It is just focused on wherever the > > > default/manual setting is - which is pretty close but probably the > > > thickness of the glass away from being optimum. > > > > > > Try a few transparencies or negs in this usual mode and then try > them > > > with Polaroid Insight (f you have it installed - if not it's free > > > from the polaroid>support>download site) - you may be very > surprised > > > at what you thought was in focus. I was - suddenly there is detail > > > and texture that i never saw before ! > > > Frank > > > > > > > > > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Shilesh > Jani" > > > <shilesh.jani@s...> wrote: > > > > Yes it is. Have you confirmed this with people at Silverfast? I > > > know > > > > SF 6 cannot manually focus the SS120. But there is a tab for > this > > > > function - must be in all versions of SF. It toggles between > being > > > > grayed out and showing an "A". I have assumed that "A" stands > for > > > > autofocus - hey how about the SF documentation, eh ;-(. > > > > > > > > Quite frankly, I have not encountered "soft" scans when scanning > > > > transparencies (which is mostly what I use). But, I am going to > > > > explore this further. For me, at least, it may be a lesser > problem > > > > because I don't scan too many negatives, and in fact have > recently > > > > decided NEVER to shoot them any more. I like the grain I get > from > > > > Fujichrome Provia 400 when pushed 1 or 2 stops. And, it is so > much > > > > easier to scan than Tri-X or Ilford Delta 3200. I like some > > > features > > > > of SF 6, but I can live without them. > > > > > > > > Is it possible that the problem is in your scanner? If you > like, I > > > > would gladly scan a couple of your negatives to test it out. > > > > Contact me off-list. > > > > > > > > If all esle fails, time to be rid of the scanner, and go with a > > > > Minolta or Nikon (argh $$$$). > > > > > > > > Regards. > > > > > > > > Shilesh > > > > Please visit the Group Homepage to check the Files, Bookmarks, Polls and other resources as they are often being updated. 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