Color Negative Scanning

B
Posted By
Bobby77501
Jan 5, 2005
Views
440
Replies
7
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Closed
I have a 6×9 negative that I want to scan to make at least an 8"x10" print. Since I have never scanned a negative before, I don’t know what to do for scanning resolution. Need some guidance, please. Using the Epson 3200 Perfection Pro scanner and Photoshop CS. Thanks………

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M
MOP
Jan 5, 2005
Most people print at something like 300dpi so to print a 10 x 8 I guess you need to scan at 3000 x 2400 pixels
others argue you should scan at the max resolution of your scanner and resize in PhotoShop.

Most scanners allow you to set the size of your output image and also the dpi of the output. so for example 10" x 8" and 300 dpi I personally scan at the max *optical* resolution of my scanner, and archive the images, so I don’t need to rescan them if I want a bigger print at a later date. but that’s just me being lazy.
MOP

"+++Bobby "O"+++" wrote in message
I have a 6×9 negative that I want to scan to make at least an 8"x10" print. Since I have never scanned a negative before, I don’t know what to do for scanning resolution. Need some guidance, please. Using the Epson 3200 Perfection Pro scanner and Photoshop CS. Thanks………
B
Bobby77501
Jan 6, 2005
"MOP" wrote in message
Most people print at something like 300dpi so to print a 10 x 8 I guess you need to scan at 3000 x 2400 pixels

Does this mean that I should scan at the maximum (3000dpi) since, I think, the scanner only has one setting for dpi?

others argue you should scan at the max resolution of your scanner and resize in PhotoShop.

Most scanners allow you to set the size of your output image and also the dpi of the output. so for example 10" x 8" and 300 dpi I personally scan at the max *optical* resolution of my scanner, and archive the images, so I don’t need to rescan them if I want a bigger print at a later date. but that’s just me being lazy.
MOP

"+++Bobby "O"+++" wrote in message
I have a 6×9 negative that I want to scan to make at least an 8"x10" print. Since I have never scanned a negative before, I don’t know what to do for scanning resolution. Need some guidance, please. Using the Epson 3200 Perfection Pro scanner and Photoshop CS. Thanks………

M
MOP
Jan 6, 2005
I would be surprised if you scanner *only* had one dpi setting, I don’t know the scanner but I have an old Epson 1640su and that allows various DPI’s to be set
if you do scan at max then you will have a large file and depending on the power of your computer you might find it runs slow.

maybe some one with your type of scanner can explain exactly how to set it up.
this is how I set mine, which may be quite similar
there is basically to ways to set the image size, either as a source size or as a output size
for what you are trying to do I would use the output size, setting the output image to 10in x 8in and the dpi to 300dpi
you should then have a dotted box on your preview screen which you can move around and change the size of,
the software [should] maintain the correct aspect ratio so when you scan you get a file the correct size.
as I said my scanner might be very different, I don’t tend to scan much nowadays as I have gone over to digital cameras, and when I do use film it’s usually 5 x 4 and I have it professionally scanned

"+++Bobby "O"+++" wrote in message
"MOP" wrote in message
Most people print at something like 300dpi so to print a 10 x 8 I guess you need to scan at 3000 x 2400 pixels

Does this mean that I should scan at the maximum (3000dpi) since, I think, the scanner only has one setting for dpi?

That will give you a large file but the best thing to do is try it.
P
Paul
Jan 6, 2005
I started scanning negatives with an Epson 2450 at 1200 and the file sizes were large and taking forever to open even with 1Gb of memory and a 2 GHz+ processor. What I have finally done is to scan negatives as a contact print for cataloging at 300 dpi and then when working go to 800. Your scanner should give you a large selection of resolutions to work with. Also cropping during scanning will make a large difference to the file sizes.

Paul
"+++Bobby "O"+++" wrote in message
I have a 6×9 negative that I want to scan to make at least an 8"x10" print. Since I have never scanned a negative before, I don’t know what to do for scanning resolution. Need some guidance, please. Using the Epson 3200 Perfection Pro scanner and Photoshop CS. Thanks………
H
Hecate
Jan 7, 2005
On Wed, 05 Jan 2005 23:14:16 GMT, "MOP" wrote:

Most people print at something like 300dpi

Actually, whilst my images are prepared for printing at 300 *PPI* I often print at 1440 *DPI". 😉



Hecate – The Real One

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M
MOP
Jan 7, 2005
"Hecate" wrote in message
On Wed, 05 Jan 2005 23:14:16 GMT, "MOP" wrote:
Most people print at something like 300dpi

Actually, whilst my images are prepared for printing at 300 *PPI* I often print at 1440 *DPI". 😉

Okay point taken
I’ll explain what I mean,

The print is set at 300 pixels per inch and the printer is set at a much higher setting (1440 Dots per inch) what this means is that the printer will use a large number of dots of ink to reproduce every pixel in the image, many people when they first get a printer think they need to set the DPI of the print to be the same as the PPI of the printer, and realise the prints are truly a horrible colour (color) the reason for this is it is not possible to reproduce the exact pixel colour with a single dot of ink the dot can only be C M Y or Black, Light C M or Black.
but when there is many dots available a much closer colour match is possible.
There are many other reasons for setting a high DPI and a low(ish) PPI I’m sure someone will elaborate
Is that better? 🙂
H
Hecate
Jan 7, 2005
On Fri, 07 Jan 2005 20:43:41 GMT, "MOP" wrote:

"Hecate" wrote in message
On Wed, 05 Jan 2005 23:14:16 GMT, "MOP" wrote:
Most people print at something like 300dpi

Actually, whilst my images are prepared for printing at 300 *PPI* I often print at 1440 *DPI". 😉

Okay point taken
I’ll explain what I mean,

The print is set at 300 pixels per inch and the printer is set at a much higher setting (1440 Dots per inch) what this means is that the printer will use a large number of dots of ink to reproduce every pixel in the image, many people when they first get a printer think they need to set the DPI of the print to be the same as the PPI of the printer, and realise the prints are truly a horrible colour (color) the reason for this is it is not possible to reproduce the exact pixel colour with a single dot of ink the dot can only be C M Y or Black, Light C M or Black.
but when there is many dots available a much closer colour match is possible.
There are many other reasons for setting a high DPI and a low(ish) PPI I’m sure someone will elaborate

Usually size/distance. 🙂

Is that better? 🙂
LOL! Yep. It’s just that so many people who really don’t have a clue read the posts here and ask confused questions that I thought that I’d point it out as *you* obviously *do* know what you’re doing 🙂



Hecate – The Real One

veni, vidi, reliqui

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