should I buy a 600D 60D or 7D

I am sure for most people considering buying a Canon DSLR camera these three models, providing it is within their budget, are the ones they will be looking at. Most of you by now will probably know that all three cameras use the same imaging sensor (four if you include the 550D). So many of you might be asking why are the prices so different for them, and why they are positioned differently from entry level to semi-pro models? So here I have tried to sum up the main differences that you will get for your extra money between the models.

Body Construction

The camera's body of the more expensive models are constructed more ruggedly with more expensive materials. the 60D uses a higher quality plastic than the 600D, while the 7Ds are made with Magnesium alloy complete with weather sealing.

The more expensive bodies are also larger and have more buttons and wheels on them so that you can access different functions easier and faster. Of course with larger bodies come added weight .

Focusing Speed and Accuracy

The more expensive models have better focusing abilities. They are able to focus faster and they also have more focus points to choose from so you are better able to track fast moving objects more accurately. These qualities are essential when you are taking sports or birds photography.

Faster fps

The more expensive models will be able to take more frames per second in burst mode. Again this could be essential when taking photographs of fast actions sequences.

"So I have to pay so much more just to get a few extra features?", this might be what a lot of people are thinking, and they are right in a way. Given a properly taken photograph shot with these three different cameras it would be very hard to tell the difference in image qualities between them. However for some photographers who take certain types of photographs these few extra features are the difference between getting and not getting the shots.

So if you enjoy taking mainly photographs of landscapes or static objects then even the 600D might be enough for you (providing you don't have ergonomics problems with the smaller bodies). However I am sure there will still be plenty  of people who "Want" the higher models...and "Want" and not "Need" is the main reason most of us buy new cameras :)