Sigma 70-300 + Converter

Harpic 9 13 England
29 Jun 2010 7:43PM
If this topic has appeared elsewhere, apologies.
I have a sigma 70-300 DG Nikon fit lens. I keep being told that no converter will fit and give good results, sad to say even sigma told me this. But I'm clutching at straws and hoping someone knows better. Can anybody help me or do I have to start selling body parts to buy a 150-500 ?.
Ta V Much

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StrayCat 16 19.1k 3 Canada
29 Jun 2010 7:54PM
A converter on that lens would be next to useless. Converters will give less than acceptable results unless used with a fairly fast lens, f2.8 or f4 constant aperture. max. A converter such as a 1.4 blocks 1 stop of light, and a 2.0 blocks 2 stops.
cameracat 16 8.6k 61 Norfolk Island
29 Jun 2010 8:34PM
If you have a nose around on ebay, You might find some third party teleconvertors in the Nikon F mount.

These cheap convertors have no electrical contact between the camera & the lens, So you have to work manual Focus & Aperture.

Assuming your lens has an aperture ring, Then generaly you can use them with almost any lens.....Smile

HOWEVER as StrayCat has said the image quality will be awful at best, But if you can pick one up for under 20 on Ebay, Then you can find out for your self.

Or try your luck with one of the many " Mammoth " focal range lens to be found on " Fleabay " for around 100 quid, They are rubbish though.....Sad

Personally I'd start advertising the body parts and get something that will actually reward your efforts.

BigRick 14 2.1k 3 United Kingdom
29 Jun 2010 8:34PM
well if everyone including Sigma tells you,,,, then it just might be worth taking the advice of them Wink
Harpic 9 13 England
29 Jun 2010 8:53PM
Thanks for the advice all
I thought it might be futile, but I had to try.

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