Archived posting to the Leica Users Group, 2004/11/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]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 >