Peripherals forum


Advice about cannon P-150

by eyenir / April 26, 2013 6:18 PM PDT
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All Answers

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Looks like you can fire the cannons.
by R. Proffitt Forum moderator / April 27, 2013 12:43 AM PDT

The Canon you noted looks OK but I've also used an 8 or more megapixel camera for such scans. Let's try a little math to see if 8MP is enough?

A4 paper size is at

So if I take my old 8MP 3264x2448 pixel camera and take the 11.7 inch side along the 3264 side, I get the following DPI.

11.7 inch at 278 DPI
8.3 inch at 294 DPI

Since a lot of phones have 8MP cameras and this quality is about double of a fax copy, why are you getting a scanner if these are just notes?

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Capturing a picture of the situation reveals a different pic
by eyenir / April 27, 2013 2:44 AM PDT

I don't have a proffesional camera but I have the camera in my phone (galaxy s3).One of the main reasons, I want to buy it is the ADF (The lecturer writes a lot so I need to scan every week a full pad of 40 pages) . Additionally, the pictures in the phone are crooked and that's a long seperate process of uniting them into one PDF. Thanks for help but for the time being I still want to buy a scanner.

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Here the process is not hard at all.
by R. Proffitt Forum moderator / April 27, 2013 3:10 AM PDT
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You are basicly right but..
by eyenir / April 27, 2013 4:06 AM PDT

Besides my hands are realy shaky, that seems a long sisyphean process which may take around 10minues per lecture. Needless to say that with a scanner it take few minuets. I'm very sorry but I haven't been convinced yet...

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Why I brought it up.
by R. Proffitt Forum moderator / April 27, 2013 7:10 AM PDT

Folk have bought such and then ask me how I do such things. I'm sharing an alternative along with the math to back it up. On top of that I shared a free app for that.

Only shared my way just in case you wanted to try it.

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