1DMK IV for my 5DMK III

I'm facing a dilemma, I've been talking to a friend about trading my 5DMK III for a 1DMK IV.
The reason I'm considering the change is for the FPS, my main focus is sports and wildlife. I purchased the 5D mainly due to image quality and a little bit of video but find myself a little lost in all the opinions. Great, no awesome camera just looking for more speed at the race track.

Has anyone out there made this type of decision or am I just crazy even thinking about it!

Words of wisdom are more than welcome.

Heya,

I'd do it. If I were shooting wildlife, sports, or anything fast, action packed, or where you're out in the elements, I'd take a 1D4 over the 5D3 any day.

If I were just doing portrait, landscape, etc, then it would make sense to use the 5D3 (overkill for that, I'd really just get a 6D).

1D4 is superb.

Very best,

The 5D3 is simply fine for sports or fast paced action. AF wouldn't be the reason to choose one over the other, The 1.3 crop factor, FPS and weather sealing are the only 3 factors to really consider over the 5D3.

I currently use both bodies, 5DIII get's used for types of shooting but gets less actually use since the 1DIV is my main action body.

I like having both even for the action stiff stuff each does some things a little better than the other plus having slightly different FOV is nice when shooting primes.

Since my shooting is a little more varied than what you've listed if I had choose one it would be the 5DIII(mostly because of my TS-E 24), however for what you listed it would the 1DIV.

The metering linked to the AF point is a really nice feature of the 1D series.

The 5DIII is a fantastic body but I love the feel of a 1D body. In fact that's all I shoot. Non full body cameras feel odd now to me. The good news is that you can't go wrong with either one you go with!

Being able to tag a sound file to an image. Something I missed going to the 5D3. I've been thinking about this switch too. I'm not sure who would straight swap you because the 1DIV is still floating about in the £2000 used here in the UK and the 5D3 is dropping like a stone used at around £1500-1700.

If it drops any lower I'll be getting rid for a 1D. Far too many folk willing to outdo themselves to get a sale with a race to the bottom on resale values. It's crazy.