# Thread: 4R size pixels ?

1. ## 4R size pixels ?

What is 4R size ?

Width- How many pixels ?
Height- How many pixels ?

Documents size ?

Resolution ?

2. 4R Portrait, WxH, 4"x6", 1200x1800 @300dpi
4R Landscape, WxH, 6"x4", 1800x1200 @300dpi

3. Another question. I haven tried printing with white borders. Will the white border cover the exisiting photo or is the photo made to fit into the white border.

4. If you print with border, the picture will fit within the border.

5. Originally Posted by alwayschampion
What is 4R size ?

Width- How many pixels ?
Height- How many pixels ?

Documents size ?

Resolution ?
Strictly speaking, 4R is 4 inches by 6 inches; it is purely a physical dimension independent of pixels and resolution.

If you choose 300 dpi then it's 1200 pixels by 1800 pixels, but it's really arbitrary. If you choose 1 dpi, then 4R is 4 pixels by 6 pixels.

Of course, you can't send a (4x6=) 24 pixel picture to print at 4R, but you don't need 300dpi either. At around 120-150 dpi, the print still looks pretty ok.

6. analogy:

the 3R, 4R, 5R, etc ~ volume
the how many megapixels ~ mass
the dpi ~ density.

mass / volume = density ;-)

7. Print Size Min. Resolution (Pixels)
3R (3" x 5") 640 x 480
4R (4" x 6") 1024 x 768
5R (5" x 7") 1280 x 1024
6R (6" x 8") 1600 x 1200
8R (8" x 10") 1800 x 1200
S8R (8" x 12") 1800 x 1200

taken from http://www.kodakexpress.co.th/th/faq.cfm

8. Originally Posted by ST1100
Strictly speaking, 4R is 4 inches by 6 inches; it is purely a physical dimension independent of pixels and resolution.

If you choose 300 dpi then it's 1200 pixels by 1800 pixels, but it's really arbitrary. If you choose 1 dpi, then 4R is 4 pixels by 6 pixels.

Of course, you can't send a (4x6=) 24 pixel picture to print at 4R, but you don't need 300dpi either. At around 120-150 dpi, the print still looks pretty ok.
Spot on ST1100

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