Is it possible to make HUGE very good quality 40 inch prints from the Sony A900?

Started Jun 7, 2009 | Discussions thread
Robsphoto
OP Robsphoto Senior Member • Posts: 1,219
Re: Is it possible to make HUGE very good quality 40 inch prints from the Sony A900?

Biu wrote:

The dpi calculation you did is only meaningful at pointing out how
much detail the camera captures. How good the picture look at large
sizes depends on how the print was done.

The printing dpi (which has nothing to do with resolution of your
camera) determinate whether you will see pixelation at close
distance. Make sure your print is at least 200dpi or above. Most
printing process will do proper interpolation to maintain the higher
printing resolution.

The camera resolution determinate how much fine detail you see in the
picture. For example, whether you can see the hair follicles or not.
Also don't forget that one will look at very large prints at a
greater distance.

If you do the process right, even A700 images could be used for
pictures hanging on outside walls of tall building and look beautiful.

You mention that I did a "dpi" calculation. However, on this page:

http://www.robsphotography.co.nz/Determining-Print-Size-Of-Digital-Images.html

you will see that I have not referred to dpi (dots per inch) in the formula used to calculate the print size. Instead I have consistently referred to "pixels per inch" (ppi).

This approach is consistent, for example, with the interesting information given here:

http://www.nps.gov/history/museum/publications/conserveogram/22-03.pdf

Regards
Rob

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Biu
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