Hong Jia said:
Codling, sorry huh i am a bit slow... so if u have a 4:3 picture... and u go to for digital prints, the photos in 4R will be in 4:3 ratio but with white borders on top and bottom if it is in landscape mode issit...?? Do we have to pay extra to request them to print 4:3
so the dimensions for 4RDigital (4:3 ratio) is 6" x 4.5" Vs 4R (3:2) 6" x 4"
when u just tell the shop you want to print in 4R, most shops will just assume that you want them in traditional 3:2 format and auto crop of the top and bottom, assuming your pic is in landscape.
most digital labs will not charge for 4:3 printing. at least the 2 that i went to at parkway basement doesnt. but the standard photo lab (opp watson) do charge extra for printing white borders all round. the konica lab (adjacent to watsons) i m not too sure, they do have those self service terminals but in my hurry to use one the last time, i did not see any option to print in 4RD...anyway, didnt like their printout...
Hong Jia said:
Traditional one is to crop 3:2 but is there a minium resolution so that the photos will turn out good...?
yes, there is a minimum resolution. to play safe, you need a minimum of 300DPI
you can do a bit of calculation for minimum resolution...
12R - 12" x 18" or 3600x5400
S10R - 10" x 15" or 3000x4500
10R - 10" x 12" or 3000x3600
S8R - 8" x 12" or 2400x3600
8R - 8" x 10" or 2400x3000
6R - 6" x 8" or 1800x2400
5R - 5" x 7" or 1500x2100
4R - 6" x 4" or 1800x1200
3R - 5" x 3.5" or 1500x1050
calculated based on 300dpi for optimum printing.
3:2 aspect ratio
example
4R = 6" x 4" (1800 x 1200) minimum resolution
4R = (6" x 300dpi) x (4" x 300dpi)
4R = 1800 x 1200 pixels.
for 4RDigital
6" x 4.5"
1800 x 1350
but of course, if you are printing in 4RD, then you do not need to do this calculation, just make sure you preserve the aspect ratio when you are resizing.
hope i dont confuse ppl here...