1024 as good as 1600 for 4R?

gaugau53527 · Sep 9, 2001

I read a few articles on the suitable image size for printing. Some suggest divide the pixels by 200, hence 1600 X 1200 is enough for 8 inch X 6inch. Another idea is to convert the 72dpi(as in jpg file) to 300 dpi (in printed copy), in which case, you'll need at least 1600X1200 for a 4R print.

Forget about those theoritical calculation, have anybody tried to develop 4R printed photos based on images in 1600 and 1024?? if so, pls advise whether 1024 is enough for 4R? (as in no noticeable diff with the same printed photo using image saved in 1600).

Thanks.

Mofongo · Sep 15, 2001

What is 4R? Is this a paper or print size like 8x10 or something? I see reference on these forums in regard to 3R and 4R etc... and have been meaning to ask. Thanks...Bob

gaugau said:
I read a few articles on the suitable image size for printing. Some
suggest divide the pixels by 200, hence 1600 X 1200 is enough for 8
inch X 6inch. Another idea is to convert the 72dpi(as in jpg file)
to 300 dpi (in printed copy), in which case, you'll need at least
1600X1200 for a 4R print.

Forget about those theoritical calculation, have anybody tried to
develop 4R printed photos based on images in 1600 and 1024?? if so,
pls advise whether 1024 is enough for 4R? (as in no noticeable diff
with the same printed photo using image saved in 1600).

Thanks.

Pepe · Sep 15, 2001

4R (4x6) prints can be achieved with minimum dpi of 200, i.e. 800x1200 pixels. This is not that much noticeable if you are using continuous tone printers (dye sub, silver halide). Some can even push 150dpi. Of course, the more pixels you can pack per inch, the better the image quality. The highest quality that you can get is 300dpi (anything higher is difficult for the human eye to distinguish) - making the ideal resolution fo 4x6 prints to be 1200x1800.

gaugau said:
I read a few articles on the suitable image size for printing. Some
suggest divide the pixels by 200, hence 1600 X 1200 is enough for 8
inch X 6inch. Another idea is to convert the 72dpi(as in jpg file)
to 300 dpi (in printed copy), in which case, you'll need at least
1600X1200 for a 4R print.

Forget about those theoritical calculation, have anybody tried to
develop 4R printed photos based on images in 1600 and 1024?? if so,
pls advise whether 1024 is enough for 4R? (as in no noticeable diff
with the same printed photo using image saved in 1600).

Thanks.

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1024 as good as 1600 for 4R?

gaugau53527

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