marameo
Established
For a x10 enlargment at 200 dpi the scanner must be able to scan at 2000 ppi. Does that mean the average Epson scanner will produce a 25% upscale sampling?
Scrambler
Well-known
Do you mean as a cover glass? Not a bad idea.
Fernando2
Well-known
Despite much-inflated advertised numbers, most non-v7x0 Epson scanner won't past 1300-1500 ppi of *real optical* resolution.
V7x0 with specifically-calibrated Betterscanning holders can reach about 2300x3000 (albeit with low microcontrast and some chromatic aberration).
I've published a number of resolution chart tests, summarized reviews and real-world comparisons here in this forum, should be easy to find.
Fernando
V7x0 with specifically-calibrated Betterscanning holders can reach about 2300x3000 (albeit with low microcontrast and some chromatic aberration).
I've published a number of resolution chart tests, summarized reviews and real-world comparisons here in this forum, should be easy to find.
Fernando
citizen99
Well-known
I have a Canon 8800F, which I use for scanning old 120 film negatives. (For current photography it cannot compete in colour rendition with the drum scanners of professional labs, but that's to be expected.)
I modified the plastic holder to take a slab of ANR glass.
Which software to use? It depends on the negative.
With modern negatives, I find that the CanoScan s/w usually works best, but it can give a colour cast from old negatives.
I've recently scanned some old Kodak 'Safety Film' (no other identification) colour negatives that I took in the 1970s. For these, a Silverfast that came bundled with a scanner usually works best, if 'told' that it's scanning e.g. Kodak Gold.
Whereas, occasionally I can get a better result using VueScan.
I modified the plastic holder to take a slab of ANR glass.
Which software to use? It depends on the negative.
With modern negatives, I find that the CanoScan s/w usually works best, but it can give a colour cast from old negatives.
I've recently scanned some old Kodak 'Safety Film' (no other identification) colour negatives that I took in the 1970s. For these, a Silverfast that came bundled with a scanner usually works best, if 'told' that it's scanning e.g. Kodak Gold.
Whereas, occasionally I can get a better result using VueScan.
citizen99
Well-known
By the way, I notice that the Epson V*** series seem to be a lot more expensive in the UK than in the US 
.
.marameo
Established
That's how I've figured out the % (output needed divided by real optical resolution). The goal is to keep this ratio as low as possible.
One can always scan at 1500 ppi with a 7x0 Epson scanner for a x10 enlargment at 150 dpi and let the rip do the rest of the job.
As usual it all boils down to what we are printing..