what is the compatibility list of Canon's EF Tele-extender of 1.4 and 2.0 .?

Question

what is the compatibility list of Canon's EF Tele-extender of 1.4 and 2.0 . Does the 17-85mm IS or 28-135mm IS.

I would like to buy a LENS that is compatiable to these tele extenders so that i can expand my zoom level.

Please give me all the compatiable list.

Thank you

Ahmed

Answer 1

You shouldn't use the two lenses you mentioned with any teleconverter. Here's a compatibility chart: http://photography-on-the.net/forum/showthread.php?t=41922
If you need more reach on a budget, forget about a teleconverter and get a (third party) 70-300mm lens.

Answer 2

Hi Ahmed,

Like OMG said, those two lenses are NOT compatible with Canon's teleconverters.

Canon's teleconverters can be used with all Canon white lenses and with the 135 f/2.0 L and 200 f/2.8 L lenses.

There's a reason for this. Teleconverters work best with prime lenses, zoom lenses have some design compromises to make them work, cropping a part of the image with a TC really compromises image quality.

If you're looking to expand the range you can reach with your kit I would also suggest getting a 70-300 stabilized lens.

If you want to get a TC I would suggest that you get a prime like the 300 f/4 to see what can be accomplished with this setting.

The blue bird shot in my gallery was shot with a 300 mm lens plus 1.4 TC.

http://www.photo.net/photos/ifeito

Hope this helps!

Ignacio

Answer 3

Whether or not it is technically possible, it strikes me as a silly idea. Your 300mm is probably f5.6 max aperture. With an extender that becomes 600mm f11; with two it becomes 1200mm f22! And even with one extender you should not operate at max aperture so in practice you would be working at f32 or even f45 - you would need a rock steady big tripod even in good daylight. Image quality would very likely drop also, since that combination would not have come within lens designers specifications. If you do need a very long lens there are some fixed focal length lenses by independent manufacturers which would give better results that such an extreme combination.

Answer 4

Here is the link to the page:

http://www.usa.canon.com/consumer/controller?act=ModelDetailAct&fcategoryid=154&modelid=7462

Click on the banner on the right that says "Lens Chart". It is a PDF file with all the specs on all the lenses and a compatability list of the extenders.

Hope that helps!

Answer 5

Why with 85mm? Its not going to make a huge difference in your zooming capablities. Plus with the 2X extender you lose auto focus so thats why most people only use the 1.4x. But even at that I do no think its worth the money below 400mm. Thats my opnion.

Answer 6

when I have a question about lenses
I go to adorama.com
type in name of camera
it will give you a list of lenses