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Archive 2017 · Canon EF 300 F/4L TC 1.4 II or 1.4 III

  
 
USAF
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p.1 #1 · p.1 #1 · Canon EF 300 F/4L TC 1.4 II or 1.4 III


Looking at the EF 300 F/4 L for my 7D II. Which one of the two TCs will work the best on this lens and still maintain auto focus and IQ. Thanks

Bill



Apr 01, 2017 at 04:21 PM
charlyw
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p.1 #2 · p.1 #2 · Canon EF 300 F/4L TC 1.4 II or 1.4 III


Both will maintain autofocus, both will be optically ok - the third revision of the 1.4x Extender only is delivering benefits for the very latrest Ultratele lenses when it allows for faster focusing...


Apr 01, 2017 at 04:52 PM
EB-1
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p.1 #3 · p.1 #3 · Canon EF 300 F/4L TC 1.4 II or 1.4 III


charlyw wrote:
Both will maintain autofocus, both will be optically ok - the third revision of the 1.4x Extender only is delivering benefits for the very latrest Ultratele lenses when it allows for faster focusing...


There is a benefit in better peripheral IQ/less CA from the big primes like the 500/4 .
I doubt there would be much from a lens as old as the 300/4 IS and on a 1.6 cropper.
If you don't have a 1.4x, then I'd get the III for the future. Keep the II if you have it.

EBH



Apr 01, 2017 at 05:03 PM
Eric Larsen
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p.1 #4 · p.1 #4 · Canon EF 300 F/4L TC 1.4 II or 1.4 III


I have the 300 f/4, the 1.4X II, and III. I've noticed no difference on the 300 between the two TCs. Noticeable difference on the 100-400 II with the ver. III TC over the ver. II.

This on a 1DsIII.



Apr 01, 2017 at 05:13 PM
USAF
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p.1 #5 · p.1 #5 · Canon EF 300 F/4L TC 1.4 II or 1.4 III


Thanks gentlemen for the feedback appreciated

Bill



Apr 01, 2017 at 05:20 PM





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