Teleconverter compatibility

[Greg]

Has anyone used a Kenko 1.4x teleconverter with a Sigma 70-300 APO DG? Are there any compatibility issues?

[Canon Bob]

Greg,

The only compatibility issue is that you will lose AF on your body. In theory, AF will still be possible at the short end (70-100mm range) but this is already covered by you lens without the T/C......with the exception of the top end bodies, you need f/5.6 ot better to AF and the 1.4x will lose you one stop of light.

Bob

[Greg]

Thanks Bob. That makes sense. I was also concerned about physical fit but the Kenko may not be a problem.

[gpc1]

Whoa!

This has just freaked me out completely......


My name is Greg, I was going to post this question a day ago as I have the exact same kit, same problem/question and same name.

Suddenly thought I had written a post in my sleep and not remembered it....:eek:

Anyways, i took apunt on the Kenko TC and will let you know if I have any probs with it. Should be delivered today...

Greg

[Greg]

Hi Greg - this is Greg here! What's the best price you've found for the Kenko TC and who are you buying it from? I look forward to hearing your initial reaction when you first try it out.

[gpc1]

Hi Greg, its Greg...again...


Received the TC yesterday and attached it to the camera (Cannon 400d)and my Sigma AF 70-300mm f4-5.6 DG APO Macro. Havent actually taken any shots but the autofocus worked at both ends of the zoom, although a little slower than normal.

I bought mine from a private seller second hand for £68 inc postage. Its in perfect condition as well. Need to take a couple of test shots this weekend but so far so good.

Check out onestopdigital. You can get a new one for £80:thumbs:
Bout my sigma lenses from them and they very good and best price that i have found

http://www.onestop-digital.com/catalog/product_info.php?cPath=44_47&products_id=107


At that price if you find it doesnt do what you want you can sell it second hand and only lose £10 - £15 quid on it.

Greg

[Greg]

Thanks for the info.
Greg.

[Forbiddenbiker]

edit , soz spamming i was ..