Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Does IS still function when using a teleconverter?
I am thinking about buying a Canon 2x II Extender EF - Autofocus to use with my Canon 20D and my 70-200mm IS f/2.8 lens. I understand that if I use the teleconverter with this lens that I will be limited to only using the center focus point of the camera, but the real trick is whether or not the IS function will still work or not. Any thoughts? Also, if you have used this product before, what are thoughts on it? Thanks.
2 Answers
- Evan BLv 41 decade agoFavorite Answer
Yes, IS will still work.
I've NEVER heard of someone being satisfied with the image quality from the 2x converter, ESPECIALLY on a zoom, and even more so on a zoom that's not exactly noted for being RAZOR sharp at 200mm (I've used 4 of them now... great lens, but wide open at the long end you're not gonna cut yourself on the pics). I've never been remotely satisfied with the 70-200mm on a 1.4, let alone a 2x.
I know many photographers who feel the IQ is better with stacked 1.4x converters, oddly enough.
I'd suggest that you're not going to be very happy with this setup. If you really need 400, then consider the 400 5.6 (really great IQ) or the 100-400IS (more versatile).
Source(s): Pro photographer http://www.evanbaines.com/ - V2K1Lv 61 decade ago
What Evan said, and if you google for teleconverter tests you'll see that 1.4X is the highest you should go.
If you need more magnification than that, move up to a longer lens.
HTH.
