Thank you for the polite reply. Gratefully noted.
I did think we were discussing large format. I have found many of the Epson folks scanning large format at 4000 and downsampling to 2000 spi, silk purse from a pigs ear sort of thing. Sorry I assumed that was your basis, apparently incorrectly.
Optically when one is at the limit of resolution the contrast (MTF..) drops so much that its all about making line pairs out of the fuzzies. I just believe its good practice to back away a little where your defination contrast wise, is more robust. To me it makes for a better scan. Opinion not fact I suppose. Drum scanners just work differently, no lens, more of a aperture I believe. Not an expert so I need to stop here before I jump in too deep.
4000 spi is quite nice with the Cezanne.
I made an assumption that you may have been pixel peeping (ie. Photoshop at 300%) in determining if your machine was focusing correctly. Based upon your resolution charts (is the resolution scale-spi or line pairs???), it didnt look bad at all.
When you get up to 5000-6000 dpi, a sota drum is just superior with small negatives. Cezanne cant compete for best of the best quality when scanning ie. 35mm.. But for larger negatives it's the bomb, imo.
bob
Bookmarks