70D and Sigma 18-250mm

Started Sep 24, 2013 | Questions
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FHShort New Member • Posts: 4
70D and Sigma 18-250mm

Does anyone know if this camera and lens combination works?

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Frank

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Canon EOS 70D
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Canon EOS 70D
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vlab
vlab Senior Member • Posts: 1,534
Re: 70D and Sigma 18-250mm
1

It should say in specs if it is compatible with Canon. Or have mounts for different cameras and choose for Canon.

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Panasonic Lumix DMC-FZ50 Canon PowerShot S95 Canon EOS 60D Canon EOS 70D Canon EF-S 15-85mm f/3.5-5.6 IS USM +4 more
Mark B. Forum Pro • Posts: 20,587
Re: 70D and Sigma 18-250mm

FHShort wrote:

Does anyone know if this camera and lens combination works?

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Frank

The Sigma is compatible with EF and EF-S mounts (though it will result in vignetting on the former).  No, I haven't tried it myself.  If, however, it doesn't work then it would be on Sigma to update the lens or update their compatability specs.

Cafephoto New Member • Posts: 4
Re: 70D and Sigma 18-250mm

I have both 70D and Sigma 18-250 macro HSM (the new model), there is a little problem with the AF at 250mm because the aperture is only 6,3 and it's a bit dark for well focusing.

There is also the same problem with a 650D.

New Canon bodies seem to have glitches with non-Canon lenses.

Mark B. Forum Pro • Posts: 20,587
Re: 70D and Sigma 18-250mm

Cafephoto wrote:

I have both 70D and Sigma 18-250 macro HSM (the new model), there is a little problem with the AF at 250mm because the aperture is only 6,3 and it's a bit dark for well focusing.

There is also the same problem with a 650D.

New Canon bodies seem to have glitches with non-Canon lenses.

You've stated the problem in the first paragraph...f/6.3 makes it difficult to AF.

(unknown member) Senior Member • Posts: 4,085
Re: 70D and Sigma 18-250mm

Sound like a statement from someone who is not up to date on the Canon 70D.

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Thanks for posting, have a great day.
John

 j2l3m7's gear list:j2l3m7's gear list
Canon EOS 70D Canon EF 100mm f/2.8L Macro IS USM Canon EF 70-300mm f/4-5.6L IS USM Canon PowerShot SX60 HS Canon EF 85mm f/1.8 USM +10 more
Cafephoto New Member • Posts: 4
Re: 70D and Sigma 18-250mm

Sorry but my statement is true, I have my 70D and the sigma 18-250 and I still have a problem when focusing at small "native" apertures.

Note: the Sigma 18-250 is the only lens with this problem but all the others have a bigger maximum aperture.

Sorry if I don't understand very well what you mean because my mother tongues are french and spanish but I suspect you were not very friendly in your comment.

Cafephoto New Member • Posts: 4
Re: 70D and Sigma 18-250mm. Is it a good choice ? maybe an answer.

IMHO I think this type of bodies with high Mpixels don't fit well with lenses like the 18-250 because it's a bit soft at certain focals and the small aperture at maximum tele side cause AF problems like stated in my other intervention.

You cannot expect large focal range and good optic quality, this is the price to pay for having the convenience to travel with one lens only.

Take a look at DxOmark site for the best lenses for the EOS 70D.

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