Archived posting to the Leica Users Group, 2004/11/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Simon, I scan at the native resolution of my Nikon 8000 scanner, 4000dpi. At this scan rate I get pretty hideous grain aliasing on fast print film but nice scans from slides. The 8000 produced noticeably better scans than the 4000 which has nominally the same spec. I have no idea why. The biggest prints I have from digital are A3 plus. Frank On 23 Nov, 2004, at 19:37, animal wrote: > I,m curious what scanner did you use and and at what > resolutions(which?)? > Crude tests i did show that my scanner (nikon) is not able to get all > detail > out of slide or fine grained film. > The detail i can see on a lightbox with a high powered loupe thingy. > The noise i get when scanning at high resolutions is not visible in > the film > . > best,simon jessurun,amsterdam > >> The thing is Rick the fact that you have scanned the film at 6144x4096 >> pixels does not mean that there is meaningful data at this resolution. >> In absurdam if the frame was a uniform colour a scan of 1 pixel and a >> scan of 6144x4096 pixels will contain the same data and would be >> equivalent. >> I have not found 35mm print film to have more data on it than my 6 >> megapixel Canon, whatever scan resolution I chose to use. My scans >> from >> slides have been better but not hugely so. >> I am entirely prepared to believe, based on my own experience of >> prints >> from scanned 35mm film and digital SLRs that the 10megapixel R back >> will equal 35mm film in resolution. I have heard all the pseudo >> technical absurdities about huge sampling rates but none of it >> actually >> agrees with my actual experience of producing my own prints. >> Frank >> >> >> On 23 Nov, 2004, at 00:16, Rick Dykstra wrote: >> >>> Hi Alistair. You've posed exactly the question I've asked of Leica, >>> though no response yet. >>> >>> The lab I use does high end scans (though not the highest - were not >>> talking drum scans here) which are 6144 x 4096 pixels and around 75 >>> to >>> 100 MB in size (depending on the variety of colours I suppose). I >>> get >>> these printed to 20 x 30 inch. The DMR sensor is 3872 x 2576. So >>> how >>> can this sensor make images reproduced at 20 x 30 in of the same >>> clarity as film scanned to 6144 x 4096? And I could get these >>> trannies drum scanned to even higher standards. >>> >>> I'm not knocking the DMR - I want one or two - but will it be as good >>> as my Velvia? I can't see how. Again, not necessarily a problem, I >>> just need to know before I spend the money. :-) I've also heard it >>> will be upgradeable and that's good. Any comments on this? >>> >>> Rick Dykstra, Australia >>> >>> >>> On 22/11/2004, at 1:50 PM, firkin wrote: >>> >>>> Feli di Giorgio writes: >>>>> I would be very happy with a 10-12MP full frame camera. >>>>> Manageable file sizes, DOF of a 135, low noise at high ASA, due >>>>> to the large size of individual receptors. I really don't need 20MP >>>>> for what I do... >>>> >>>> The immediate question is what do you do that requires 10 to 12. I >>>> mean this seriously, not as a jibe or insult. My mind tell me that >>>> 10 >>>> to 12 seems about right, because I suspect (never tried and >>>> therefore >>>> don't know) that you could print 16 x 20 at about this level with >>>> 35mm happiness. Barry Thornton claimed that only really "lucky" good >>>> 35mm negs could produce "perfect" images larger than about 10 x 14 >>>> (I >>>> think) I remember thinking "I've got larger ones" but then thinking >>>> but they are not all "perfect", so he may be right. >>>> Like many, I suspect I've been too worried about making big >>>> enlargements, when smaller well crafted images would be "better" and >>>> store much more easily !!!!! >>>> This brings me back to my nagging question; will todays good film >>>> scanners "match" a 10 mega pixel dedicated digital camera when you >>>> view moderately large images side by side? >>>> Alastair Firkin @ work ;-) >>>> http://www.afirkin.com >>>> http://www.familyofman2.com >>>> _______________________________________________ >>>> Leica Users Group. >>>> See http://leica-users.org/mailman/listinfo/lug for more information >>>> >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >>> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >