I am considering an extender, and I wanted to know the pros and cons of a 1.4x versus the 2.0. Any and all comments are welcomed and encouraged. Right now I have a 70mm-200mm 4.5 L glass and am anticipating getting a 200mm-400mm L glass lense in the next couple of weeks. Which one would be the best extender to use on both lenses?
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Don't monkey with the 2.0. It requires too much light and your images will suffer. The 1.4 is nice to have but it will rob you of some light. I have a Kenko 1.4. I understand the Kenko to be as good as the Canon at a significantly lower price. I took this shot with the 1.4 on a 400mm f5.6 lens. It did a fine job.
This is the Kenko I use:
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Kenko at 1.5 works well for canon. Seriously cuts down on light and focusing speed and accuracy. But! It takes a learning curve to know when the conditions are right. Good results are to be had.
I wouldn't want a 2x.Comment
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Thanks guys, I was thinking along those lines. I know the extender is a light robber, and Iwas wanting some opinions from the brain trust. Ya'lls info confirmed what I was thinking. Thanks again.Comment
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I'm going to go against the tide on this one and say that a 2X converter produces sharp images. I have a both a 2X and a 1.4X and both produce sharp results.
The problem that you run into when you use a 2X is that on my 40D (along with the lower D models - except I am not sure about the 50D) you lose autofocus beyond f5.6. In other words, an f4 lens + a 2X converter makes the lens an effective f8. In that case, the autofocus is disabled.
This image was taken with a 2X attached...
That's pretty dang sharp...Comment
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Is that a swift fox, Russell?Comment
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It is...Originally posted by Shane View Post
Do you remember the time I proclaimed us 1%ers?
The time I shot this image it was a 1%er time..
-RGComment
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That's for sure. Rare little suckers. Where/when was that?
The only place I've ever seen a swift was at several basketball tournaments.
(Nazereth Swifts)
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I took these in July of 2007 near Dalhart. For a species that was though extinct in Texas until 1998, I saw seven in this one day.Originally posted by Shane View PostThat's for sure. Rare little suckers. Where/when was that?
The only place I've ever seen a swift was at several basketball tournaments. (Nazereth Swifts)
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Thanks Russell, that is something to think about. That is a sharp image.Comment
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my 2X has served me well
made my 200 a 400 for this shotComment
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I was debating the 1.4x or the 2.0x but I bought the F/2.8 so it brings in alot of light so I am 400mm at F/5.6... with my 2.0x.Comment
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