Hi Jez
There are a couple of points to make:
1. Yes, maximising the DPI seems like good advice. Scanners obviously
are much slower when working at maximum resolution, so the trade-off is
quantity-vs-quality. 600 DPI seems sensible for photos that are good
quality, otherwise average photos gain nothing over 300DPI.
2. There are opportunities to post-process the images using Photoshop
(commercial) or GIMP (free, open-source). It is relatively easy to sharpen
images by changing the white balance, contrast etc.
Matthew Shaw
On Tue, 11 Feb 2020 at 08:07, Jez Collins <[log in to unmask]>
wrote:
> Good morning all
>
> This is a relatively simple question but one that I'm struggling to get
> some simple, definitive advice so I hope someone can help.
>
> I have a number of photographs, 6 x 4 and 7 x 5 (and a couple of larger
> ones) that I have been lent as part of a project I'm doing. I'm scanning
> them all and I want to use to some of the scanned images for a public
> exhibition. I'm thinking the sizes for the exhibition will be a mix of
> A4/3/2/1 and maybe A0.
>
> Could anyone one advise at what DPI I need to scan these at please? I'm
> reading a lot of different advice from 600 dpi will be sufficient to 'scan
> as large as you can'. I have access to a Plustek OpticPro A320L scanner so
> it's a relatively good scanner.
>
> Any help would be most appreciated.
>
> Thanks in advance.
>
> Jez
>
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