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DPChallenge Forums >> Hardware and Software >> Converters -- Which one?
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Showing posts 1 - 10 of 10, (reverse)
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 04/15/2006 06:10:17 AM · #1
Canon EF 1.4x
or
Canon EF 2.0x connverter

I am about to get a 100-400mm Lseries lense and i am concidering getting a Converter tube for it. In my life my ethos on these kind of thing is the bigger the better and get more bang for your buck if you know what i mean. But as they are the same price i dont want to jump the gun. so i will get some advice from all you very well knowleged boys and girls on DPC

Thanks Cowie
04/15/2006 06:59:33 AM · #2
slow day on DPC so hhmmmmmmmmm BUMP
 04/15/2006 07:11:09 AM · #3
Hm.. I don't know much about converters, but from what I've heard the 1.4 has significantly less image degradation, and only costs one stop.

So.... that to say, that if I were to get one, it'd be the 1.4
 04/15/2006 10:03:02 AM · #4
I asked this same question here yeterday, and at Dgrin, and both places said its not worth the trouble, their image degration isnt worth it,


04/15/2006 10:07:56 AM · #5
Originally posted by TroyMosley:
I asked this same question here yeterday, and at Dgrin, and both places said its not worth the trouble, their image degration isnt worth it,


This is what I have heard also. Shutterpug bought a 2x and told me it wasn't worth it.
 04/15/2006 10:13:03 AM · #6
I am using the 1.4x with my canon 200mm/f2.8 and find it is an awesome combination! I have never used the 2x but I will get one eventually.
Neil

Message edited by author 2006-04-15 10:15:08.
 04/15/2006 10:54:40 AM · #7
I had a 1.4x TC which I used with a 70-200 f/4. The picture quality seemed to be unchanged. I changed that for a 2x and have tried it on a 20-200 f/2.8. The picture quality is most definitely changed. Quite a bit softer, but far from unusable, given the number of times I use it.

Bear in mind, also, that you'd get an effective max aperture of f/8 at 400mm with the 100-400 using a 1.4 and f/11 using a 2x. With your camera, you should still get autofocus at f/8, but most probably not at f/11.
 04/15/2006 11:29:58 AM · #8
The Canon 2x is in my book listed as a not recommended purchase. L prices, but it doesn't have the performance.

Another one to check out might be the Kenko 300 which I believe is a 2x TC. I've been using it a bit with my 80-200 f/2.8L on a friend's camera and it looks fantastic. I don't know how, but it seems as though I am able to shoot f/4.0? I wish I had time to play around with that some more to check it out. That would seem to indicate that either the camera gets confused about the aperture or that the TC only drops one stop.

I started a thread to ask about how this compares to the other TC's and the 1.4x, but I received no replies.

As far as I can tell, the Kenko and the Canon 1.4x are neck in neck.

Incidentally, the Canon TC's are not supposed to be able to work with the 80-200. Easy choice for me.
 04/15/2006 06:01:24 PM · #9
Thanks for the advice guys will have to think a little harder now
04/15/2006 06:03:45 PM · #10
Have a look at this thread
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