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November 17, 2019, 10:08:30 AM

Author Topic: Canon EF-S 10-18mm F4.5-5.6 IS STM vs Sigma 10-20mm F3.5  (Read 1938 times)

Offline neocaligatio

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Canon EF-S 10-18mm F4.5-5.6 IS STM vs Sigma 10-20mm F3.5
« on: January 31, 2015, 08:04:43 AM »
This question seems to have come up on a lot of forums, but I've yet to see anyone really compare these two lenses... I'm about to buy a wide angle and have the option of either.

Some reviews give them both great scores, other reviews give them both mediocre scores - I'm a bit confused!

The IS on the Canon seems like a big plus, but the F stop worries me a little. I've heard great things about the build quality of the Sigma, but some people have raised concerns over sharpness - and it's £100 more expensive.

Can anyone shed any light either way?


Offline Doodle

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Re: Canon EF-S 10-18mm F4.5-5.6 IS STM vs Sigma 10-20mm F3.5
« Reply #1 on: January 31, 2015, 09:36:19 AM »
I don't have either lens but I'd like to throw out my (totally amateur)opinion on this if I may:
The Canon has IS so as a rule, it will be giving you back the equivalent of a stop (in theory). Besides, I don't see where 1 F-stop is that big of a difference.
The biggest concern is the sharpness (something that IS will again help with).
If I were to look at just the points you offered, I would see the Canon as the winner:

Canon pros: sharper, IS, cheaper.  Canon cons: 1 less f-stop.
Sigma pros: 1 f-stop more. Sigma cons: more expensive, no IS, sharpness issues.

Again, I don't have an informed opinion but from what you posted, I think you answered your own question. :)

When all is said and done, it is the image quality that will matter.

Best "advice" I can give is to rent them both and see how they work for you. I think you'll be able to form a better opinion of their capabilities if you can play with each of them for a little while before buying.
Take your camera with you dammit. You can't take your next "best photo" if your camera is sitting at home in the bag, now can you?