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Author Topic: Canon EOS-1D X announced  (Read 26603 times)

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« Reply #50 on: October 24, 2011, 20:00 »
0
I've been doing a lot more research on this camera....just a heads up - this issue makes ABSOLUTELY no difference to me - but it may make a difference to wildlife photographers - especially those that shoot birds.

The new body does not have the ability to autofocus on lenses with a minimum aperture of f/8.  What does that mean?  That means if you add a 1.4x or 2x teleconverter to a lens it may not autofocus (think 200mm f/4 with a 2x converter or 400 f/5.6 with a 2x converter).

Again, makes no difference to me, but if it makes a difference to you, you'll probably want to get a 1D MK III before they're all gone.

^^^ I thought this was the case with all Canon cameras and is a 'function' of the lens combination rather than the camera body itself.

That's interesting.  I hadn't read this before.  On wildlife trips I like to use the 400 f/2.9 with the 2x converter so it'll still be OK for my needs.  I wonder why that is though.  I'll bet this will impact the decision for a lot of bird shooters.

Mat 

Until now the 1D series always had a working autofocus (only the center point IIRC) with f/8. The new 1D-x doesn't. That does make a difference for those using the big lenses (500 f/4 or 600 f/4) with a 2x converter (which is a very common combination for wildlife photographers).

I think I'll stay with my 1D Mark IV - can't find a reason to upgrade with the specs of the 1D-x.


RacePhoto

« Reply #51 on: November 03, 2011, 15:37 »
0
You guys are losing me. One says 1D Mark III before they are gone, when, they are gone and were already replaced by the Mark IV?  ???

Since I can't afford a Mark IV, even used, I will be looking for a Mark III for the 2X tele-extender. I'm glad someone pointed this out. Thanks


I've been doing a lot more research on this camera....just a heads up - this issue makes ABSOLUTELY no difference to me - but it may make a difference to wildlife photographers - especially those that shoot birds.

The new body does not have the ability to autofocus on lenses with a minimum aperture of f/8.  What does that mean?  That means if you add a 1.4x or 2x teleconverter to a lens it may not autofocus (think 200mm f/4 with a 2x converter or 400 f/5.6 with a 2x converter).

Again, makes no difference to me, but if it makes a difference to you, you'll probably want to get a 1D MK III before they're all gone.

^^^ I thought this was the case with all Canon cameras and is a 'function' of the lens combination rather than the camera body itself.

That's interesting.  I hadn't read this before.  On wildlife trips I like to use the 400 f/2.9 with the 2x converter so it'll still be OK for my needs.  I wonder why that is though.  I'll bet this will impact the decision for a lot of bird shooters.

Mat 

Until now the 1D series always had a working autofocus (only the center point IIRC) with f/8. The new 1D-x doesn't. That does make a difference for those using the big lenses (500 f/4 or 600 f/4) with a 2x converter (which is a very common combination for wildlife photographers).

I think I'll stay with my 1D Mark IV - can't find a reason to upgrade with the specs of the 1D-x.


 

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