Scanning: initially, years ago, scanned about 35,000 35mm ( color and b&w ) negs on an Epson V700; negs curled, really didn't know what I was doing. time has marched on, I have lots of...

Ed Chu Loc: Las Vegas NV

initially, years ago, scanned about 35,000 35mm ( color and b&w ) negs on an Epson V700; negs curled, really didn't know what I was doing.

time has marched on, I have lots of time; have purchased an Epson V850 - any advice would be helpful

1. how to uncurl 35mm negs ( doesn't seem to be possible, no answers on Google, no respones from a previous UHH query

2. Correct settings, unless default is ok; problem is, when I look at the negs on my pc, they "pixelate" once you start to enlarge the image

Najataagihe

Use a THIN piece of CLEAN glass and flatten the negative between it and the scanner bed.

PHRubin Loc: Nashville TN USA

Ed Chu wrote:

...problem is, when I look at the negs on my pc, they "pixelate" once you start to enlarge the image

If they pixelate, you need to set the scanner to a higher resolution, (dpi).

CHG_CANON Loc: the Windy City

Didn't your new Epson come with a plastic guide for 4x to 6x35mm negatives at a time in scanning? Try a large book to unspool and 'press' the negatives flat, say for a week, or until you get them flat enough to easily place into the plastic guide.

Here are settings that worked great for my Epson v600. Increase the pixel resolution, as desired. Mine returned 10MP (3888x2592). Increase to say 6000x4000 for 24MP, assuming this doesn't make the time to scan too long and / or other problematic impacts.

https://www.uglyhedgehog.com/t-689142-1.html

BTW - the DPI setting has zero to do with the resulting JPEG. Just ignore that field (or set any random value). The JPEG, like all pixel-based image files, has only a pixel resolution, like digital sensors. Focus your attention on the pixel settings for the relevant parameters.

Ed Chu Loc: Las Vegas NV

thank you

PHRubin Loc: Nashville TN USA

CHG_CANON wrote:

...BTW - the DPI setting has zero to do with the resulting JPEG. Just ignore that field (or set any random value). The JPEG, like all pixel-based image files, has only a pixel resolution, like digital sensors. Focus your attention on the pixel settings for the relevant parameters.

Actually, on my scanner, this (dpi) is how they describe the resolution of the resulting jpg even though the term is meaningless if no print size is specified.

The Watcher

I've encountered the same problem and put the curled film in plastic slide mounts. The mounts are the same thickness as the film holders that came with the scanner.

CHG_CANON Loc: the Windy City

PHRubin wrote:

Actually, on my scanner, this (dpi) is how they describe the resolution of the resulting jpg even though the term is meaningless if no print size is specified.

When you look at the file attributes of your scanned images, what is the resulting pixel resolution of the image files? (assuming you output to JPEG or TIFF)

If using an Epson model, change to the Pro-mode, here's a screen print from their PDF user manual that matches up with my description linked above.

DebAnn Loc: Toronto

Ed Chu wrote:

initially, years ago, scanned about 35,000 35mm ( ... (show quote)

You could try this on an old negative strip that you don't want to keep. I read that you can iron negatives flat. You put them on the ironing board with a piece of cotton cloth on top. Then you use steam while ironing evenly and steadily to avoid burning the film. But, as I said. Don't do this before trying it out on an unimportant negative.

BebuLamar

300 dpi is too low for film scan. It's only good for 4x6 from a 35mm slide or negative.

Najataagihe

DebAnn wrote:

You could try this on an old negative strip that you don't want to keep. I read that you can iron negatives flat. You put them on the ironing board with a piece of cotton cloth on top. Then you use steam while ironing evenly and steadily to avoid burning the film. But, as I said. Don't do this before trying it out on an unimportant negative.

Don't use steam!

Better yet, press the film with a book, like you do dried flowers, and leave it for a week.

Morning Star Loc: West coast, North of the 49th N.

Najataagihe wrote:

Use a THIN piece of CLEAN glass and flatten the negative between it and the scanner bed.

Exactly! I visited a frame shop, told them what I needed the glass for, and they gave me a piece of glass that was intended for the garbage, too small for any frame work they had to do. It was a good quality no-glare glass.
At home I covered all four edges with packing tape, the kind that looks like it could be thin plastic and has "silk" threads running lengthwise through this tape. On each of the corners I left an extra inch or so of the packing tape, simply folded it with sticky sides together, to have "handles" to easily place the glass on top the negatives on the scanner, and to equally easily lift it off again, without fear of putting fingerprints where I didn't want or need them!

rmalarz Loc: Tempe, Arizona

I use a V860 Pro and, even if the negatives are curled, the holders will flatten them against the glass portion of the holder. No problem.

Check your scanning resolution if you are seeing pixelation.
--Bob

Ed Chu wrote:

initially, years ago, scanned about 35,000 35mm ( ... (show quote)

profbowman Loc: Harrisonburg, VA, USA

CHG_CANON wrote:

BTW - the DPI setting has zero to do with the resulting JPEG. Just ignore that field (or set any random value). The JPEG, like all pixel-based image files, has only a pixel resolution, like digital sensors. Focus your attention on the pixel settings for the relevant parameters.

I do not have an Epson scanner, but on my HP scanner, the dpi refers to how it will scan the slides. So, it is very important to set it fairly high, but too high can be useless because one has to reduce the number of pixels in the image in order to have a higher quality of output. --Richard

CHG_CANON Loc: the Windy City

profbowman wrote:

I do not have an Epson scanner, but on my HP scanner, the dpi refers to how it will scan the slides. So, it is very important to set it fairly high, but too high can be useless because one has to reduce the number of pixels in the image in order to have a higher quality of output. --Richard

What is the resulting pixel resolution of the files? That is the relevant measure of success in creating a digital image file.