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PostPosted: Fri Mar 26, 2010 2:30 pm 
Hi Guys

Im wanting help with an issue I have. The thing is can I fit a 2x tele-converter to it ? Do the two work together? I have a canon EOS 500d, and I bought the additional 70-300 lens, but I want to squeeze more length out of it, could the converter do it?

Thanks in advance for any help and advice


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PostPosted: Fri Mar 26, 2010 5:33 pm 
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Location: UK
You may be able to fit a generic 2x teleconverter to it. Look at the back of the lens. How much space is there? Some teleconverters stick out, some don't, and depending on the lens they may not be mechanically compatible.

Do note even if you get it to fit, you wont be able to use AF any more as the aperture then becomes too small. Also the quality will take a hit. How much I couldn't say, but it may not be much more than if you just resized an image upwards. Finally do note you'll have a long focal length and small aperture, so even with OS, shake will likely become a big problem. A 1.4x will be less risky.

_________________
Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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PostPosted: Fri Mar 26, 2010 7:18 pm 
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Popo wrote:
so even with OS

Which probably wont even work ;-)

EDIT: just 5 topics down or so, I found this topic too: http://www.cameralabs.com/forum/viewtopic.php?t=21254, please keep yourself from posting double threads if already asked by someone else. Please use the Search function in future cases to look for similar threads :-)

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- Wout -
Lowepro Nova 200 AW filled with Nikon D90 + MB-D80
18-70 DX, 70-300 VR, 35 1.8 DX, SB-700


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PostPosted: Fri Mar 26, 2010 7:27 pm 
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Not the same lens, but IS keeps trying to work when I stacked both a 2x and 1.4x on the 100-400L. Now that's a tricky one to hand hold even with IS...

_________________
Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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PostPosted: Fri Mar 26, 2010 10:31 pm 
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Joined: Fri Sep 05, 2008 4:42 pm
Posts: 1388
Location: The Netherlands
Popo, there is only one Sigma 70-300 with OS!! It is the same lens. And what TC's are you using the 100-400, because it is necessary for the TC to have IS connectors.

EDIT: Oh wait :oops: you talk about the OS / IS part

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- Wout -
Lowepro Nova 200 AW filled with Nikon D90 + MB-D80
18-70 DX, 70-300 VR, 35 1.8 DX, SB-700


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