Terry,

I turmed off all the filters, and compared HIGH Dust removal vs NO Dust removal.

They are virtually identical at a slide scanned in at 2400dpi on the V500 scanner.

This was at 200 and 300% in CS3.

Comparing the USM default setting comapred to what CS3 can do its amazing how good the scan usm applied at the medium setting is...

Ok think I am ready to get into mass scan mode, 2400 dpi for my so-so slides and 4800 for the good ones and call it a day.

Alex

Ok,

I took three scans of a 35mm Kodachrome slide, winter scene, snow and leafless maple trees...lots of bare branchs on the trees for a good resolution test.

Scans were at 2400, 4800 and 6400 DPI on the Epson V500 scanner with the included Epson Software.
I used medium USM, medium grain reduction, color correction and HIGH dust removal.

I then took 3" test strips from each and printed them out on a single sheet of 13 x 19 PGPP (Epson Glosst Prof) paper. So the 35mm slide was enlarged via Qimage to a 19" length.

I can see little or no difference in either of the scanned prints!!!

Now my wife consitently picks out the LOWEST 2400 DPI scan as the best resolution based on shadows on the snowy areas of the print!!!

So  I guess if I print out at 2400 dpi I should have no issue making a 13 x 19 print that is virtually identical to one printed from a 6400 DPI scan using Qimage!


I was thinking that taking such a small 35 mm slide scanning and printing to a large print is a real tough test of the technology employed to be able to get a decent print etc...

I was wondering again if the negative or source area increased what would happen to this relationship>

Would the results scale if the negative was a larger format? I would think so.

If anyone has any experience in this area please share this knowledge!!

All the best

Alex

 

Gosh Terry..

Your making me do all the work!

I will try ....If I can scan at a lower dpi and let Qimage interpolate up to 17 x 22 this would save me scan time and disk space.

The 1200 dpi scan is really very nice compared to the 2400 dpi one, again I cant tell  any real noticable difference at a 8 x 10 print size.

So at least I can scan at 1200 dpi for those famliy shots that I might someday do a print of but never any larger than 8 x 10.

Its finding the magic sacn dpi for those few I want to print up to a 17 x 22 on my Epson 3800 etc..

Ok  back to the testing..

Alex

2 prints 8x10's one at 1200 dpi and one at 2400 dpi, they look identical, can not tell them apart..

So...this is good..this means I can scan at lower dpi and still get a decent print with QIMAGE.

So how far can you play this game?

If I scan at 3200 or 4800 dpi will a print at 17 x 22 from my Epson 3800 still look good?

Alex

Hello,

Been using QIMAGE for years and like it very much.

I just bought a V500 Epson scanner and have started down the path of scanning old
slides and Black and White negatives.

I understand for printing at 300 dpi that for a 4x 5 print this means 1220 x 1500
for 8 x 10 print this means 2400 x 3000 ...based on the basic rule of 300 x the width or lenth of the print
you want to do.

So my question is:

How low of a dpi scan setting can i get away with and let QIMAGE do the resizing magic...can i get away with lower than 300 dpi in scanning or do i have to pay the piper to get the job done right?

Maybe its more like if I want to print a really noice 8 x 10 and scan at 2400 dpi this is the best but can I scan at say 1200 dpi and will QIMAGE fill in the blanks so to speak??

Thanks in Advance.

Alex