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Old Dec 14, 2009, 2:35 PM   #1
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Default 4x6 vs 4x5.3 (tru digital)

Everytime we send our prints out to get 4x6's made, there is an option for "TRU DIGITAL".

I dont understand why digital pics arent actually 4x6. If we dont pick TRU DIGITAL, it crops the image cutting off hair or shoes or anything close to the top or bottom of the pics.

If we pick TRU DIGITAL, the pics wont fit into any 4x6 frame.

Whats a guy to do get an actual 4x6 print?
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Old Dec 14, 2009, 8:22 PM   #2
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Quote:
Originally Posted by kris77 View Post
...If we dont pick TRU DIGITAL, it crops the image cutting off hair or shoes or anything close to the top or bottom of the pics.

If we pick TRU DIGITAL, the pics wont fit into any 4x6 frame.

Whats a guy to do get an actual 4x6 print?
What camera are you using??

Most P&S cameras have sensors that have a 4:3 aspect ratio, that is for every 4 pixels wide its 3 pixels high. If you print images from such a camera so that they are 4" tall they will be 5.33 inches wide.

Most DSLRs (those except the 4/3rds and micro 4/3rds format models from Panasonic, Olympus, and Leica) shoot the same 3:2 aspect ratio that the old 35mm film used. With these cameras when you print images 4" tall they come out 6" wide.

If you're using a camera that shoots a 4:3 aspect ration and want a 3:2 aspect ratio print (e.g. 4x6 or 6x4) you encounter the "round peg is a square hole" problem. To make it 6" wide the whole image comes out 4.5" high and the extra 1/2" gets trimmed off. Your lab is offering a 4:3 aspect ratio print in the form of their 4x5.3" print they call "Tru-Digital".

Some 4:3 aspect ratio cameras offer a special 3:2 shooting mode. This will "pre-crop" the image to the 3:2 shape showing you the reduced area in the VF (or on the LCD screen). Otherwise you need to learn to visualize the cropping yourself when taking the picture if you want 4x6" prints.

Some cameras that
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