2 systems means two sets of everything - right down to batteries, chargers etc. It is bad enough with my 20D and 1D2N, and they are both Canon! Also, Canon white (L) lenses hold their value very, very well so don't expect the 500/4 to come up very often secondhand or be that much cheaper.
Is there a particular reason you want to upgade your camera body? Unless there is a very good reason, I would put that extra money towards the 500 lens...
|