Photo Sizing T2i/550D Explain or Link PLEASE

I came from the Powershot G seies to a T2i. When I size my photos from the G (on computer) 4X6 and 5X7 had to be cropped. The 8X10 was not cropped.

With the T2i, the 4X6 is not cropped and 5X7 is cropped some. The 8X10 is cropped the most. I lose 3 and a half inches on the side(s) of the 8X10

What gives? Is this because the G uses 4:3 and the T2i uses 3:2. Will someone have mercy on a poor boy and either explain or give me a link that explains please.

Thank you for your continued support.
Gil

The default aspect ratio of the T2i is 3:2 (see page 225 of manual). That means on that 4 x 6 will not be cropped as you have discovered but the 8 x 10 will. 3:2 is a ratio of 1.5:1 so if you retain the 8 inch dimension then 1.5 x 8 = 12 and you will lose 2 inches (12-10=2).

Some cameras allow you to change the aspect ratio but I do not believe the T2i is one of them. The 60D for instance has selectable [3:2], [4:3], [16:9] and [1:1]. When you don't have the selection options, usually you can work around things by not zooming in too tight and then doing some selective cropping later based on anticipated print size.

John from PA wrote in post #14863478
...Some cameras allow you to change the aspect ratio....

Which really just amounts to in-camera cropping, so you gain nothing (except, perhaps, being able to visualize the resulting cropping better before taking the picture).

Keep in mind that 3:2 is the standard 35mm film aspect ratio so even in those days, should you have made an 8x10 then you lost the same amount. Point & shoots are typically 4:3, perhaps because the sensors were based on video sensors.

There are some Nikon's (D3???) that offer a 4:5 ratio to make framing for 8x10 easier.

Ah, that explains it quite well. Thank you for your explanations John and Tom!