Aspect Ratios

Common Monitor Resolutions

http://distantmind.hubpages.com/hub/Understanding-Display-Screen-Resolution

NTSC aspect ratio of a traditional television screen is 4:3, or 1.33:1.
ATSC aspect of 16:9, or about 1.78:1.

Aspect ratios of 2.39:1 or 1.85:1 are frequently used in cinematography, while the aspect ratio of a sync-sound 35 mm film frame is 1.37:1

(also known as “Academy Aperture” ratio).

4/3 = 1.33333…    0r 3 x 1.33333 = 4

Width Height Aspect Ratio PPI 1 EM in pixels Width in EMs
640 480 1.333333333333333 4/3
800  600 1.3333333333333333 4/3 72 12 800 / 12       66.67
96 16 800 / 16       50
1024  768 1.3333333333333333 4/3 96 16 1024 / 16     64
120 20 1024 / 20     51.2
150 25 1024 / 25     40.96
1152  882 1.3061224489795917 96 16 1152 / 16     72
120 20 1152 / 20     57.6
1280  1024 1.25 5/4 96 16 1280 / 16     80
120 20 1280 / 20     64
1440  900 1.6 5/3 96 16 1440 / 16     90
120 20 1440 / 20     72
150 25 1440 / 25     57.6
1600  1200 1.3333333333333333 4/3 96 16
120 20
16  9 1.7777777777777777 16/9
4 3 1.3333333333333333 4/3
3264  2448 1.3333333333333333
3200  2400 1.3333333333333333
2560  1920 1.3333333333333333
1600  1200 1.3333333333333333
1280  960 1.3333333333333333
1024  768 1.3333333333333333

 

-à Fitting and image into a target resolution / aspect ratio.   Do it in pixels!

resize smaller than target and then change the canvas size to get you exact size!

 

           
Portrait Mode Native

Height

Native Width Target Height Target Width  
Aspect 1.5 3264 2448 3264 2176 Crop right and/or left 272 pixels or 11%
Aspect 1.25 3264 2448 3060 2448 Crop top and/or bottom 204 pixels or 6%
Aspect 1.5 3264 2448 3262 2174 Crop length 14px Crop width 274  (11%)
Aspect 1.25 3264 2448 3060 2448 Crop top and/or bottom 216 or 6 %
           

 

 

           
Landscape Mode Native Height Native

Width

Target Height Target width  
Aspect 1.5 2448 3264 2176 3264 Crop top and/or bottom 272 pixels or 11%
Aspect 1.25 2448 3264 2448 3060 Crop right and/or left 204 pixels or 6%
Aspect 1.5 2448 3264 2069 3104 Crop width 160 (5%) Crop length 379  (15%)
Aspect 1.25 2448 3264 2448 3060 Crop right and/or left 216 or 6 %
           

 

For a 4×6 or a 12×8 in portrait mode plan on losing 5% of the length

in landscape mode plan on losing 5% of the width

 

Picasa  – enter inches it converts to pixels!

 

 

Picture size Ratio
4 / 3 1.33
5 / 3 1.66
6 /4 1.5
7 / 5 1.4
10 / 8 1.25
12 / 8 1.5
11 / 14 1.27  Do it as 8x 10 if you have to
15 / 10 1.5
24 / 16 1.5
30 / 20 1.5

 

Uncommon

 

Picture size Ratio
10 / 8 1.25
10 / 9 1.1111111111111112
10 / 7 1.4285714285714286
10 / 6.5 1.5384615384615385
10 / 8 1.25
12 / 8 1.5
15 / 10 1.5
24 / 16 1.5
30 / 20 1.5

 

 

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.