Most of my photography is BIF and action .I use the 40d and Canon 400 5.6 I would like to have better and more reliable autofocus . Would the mark 2 be a big upgrade . Cant swing Mark 3 right now so Im I think Ill be looking for Mark 2 . What about 1.6 crop versus 1.3 . Will that be a big issue ?
Wildlifepics wrote:
Focus sometimes just seems to wander off target for no reason then its tough to regain .
Is that because the 40d does not have any assist points? Keeping a BIF bang on focus point is not easy.
Can you hire/borrow a mk2 to see if it does the job you want?
What type of lighting are you shooting in? I went from 20d to 40d and saw major improvements for BIF. I would think the move upwards into any of the 1- series bodies would be significantly better, especially when you're using a relatively slow (5.6) lens. Not knocking your setup...check my profile. Just saying that when it's nice & sunny out, my 40D & 400 5.6 is stellar for BIF...when it's darker or cloudy - not as great.
