Canon EOS 40D, 5D or 1DS?

Im looking to upgrade my rebel xti and im having a hard time choosing between a canon EOS 40D, 5D and 1DS. I do a lot of portraiture work and some landscape. Im an amature photographer working my way up to making photography my Profession. The 40D and 5D are more my price range but Im going to be keeping this camera for a long time and I want to make sure I make a good investment. What camera do you recommend for my type of work? Also I have an EF 50mm f/1.4 lens for my Rebel. Im pretty sure that lens is compatible with the 40D but is it for the 5D and 1DS?





extra info:


* I have a Canon Speedlite 580EX II Flash but I much rather use natural light, so I need a camera that works well in all lighting situations.


* Since I will also be using this camera on children (toddlers and babies) I need a camera that is fast! : )





Thank You to all who respond!
Canon EOS 40D, 5D or 1DS?
The Canon 5D is the best FF value on the market.
Canon EOS 40D, 5D or 1DS?
5d is the winner. - it will be brilliant for all your needs amd 50mm will really make things pop. flash all good. FF is the future.





the 1ds is more fps, do you need more than 2 a second?





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Reply:definately the 5D. Canon haven%26#039;t packed too many pixels on the full frame which gives it better picture quality than it%26#039;s top of the line brother. It is sharply priced and would make an OK portrait camera. As for landscape, well that isn%26#039;t really in the realm for a 35mm camera and so the money you save by not buying the 1Ds will allow you to buy a medium format camera, or better still a 4x5 or 8x10 large format camera.





My advise however would be to go for medium format which is better for portrait work and landscape. 35mm cameras are good for PJ or event photography.
Reply:I would go for the 5D but the EOS 40D is hugely popular with beginners.





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Reply:My personal choice would be the full frame 5D but you need to keep in mind that technology changes rather quickly and within a few years you will need to buy a new body. Unlike before digital when you could keep your camera for years you can%26#039;t do that in the digital age. Within a few years technology will have improved to the point where your camera will no longer be useable for professional work. You might be better off buying the 40D and investing your extra money in top quality lenses. If you are seriously considering going pro you will need the best lenses you can get. For Canon these will be the L series. The lens you use is much more important than the camera body when it comes to image quality. Your lenses will also last a lifetime your camera wont.


The other answerers all make very good points and suggestions but I just wanted to point out that you might be better off building up your lens collection and then invest some serious money in your camera later.