Sigma 10-20mm

[lancsoatcake]

Hi All,

I'm looking to purchase a lens for landscape pictures, and I have seen the aforementioned lens.... BUT 2 versions.

One with f3.5 throughout focal length, one that is f4-5.6 (I think)

But it got me thinking, as a very keen, but very amateur photographer (I don't feel right even referring to myself as a photographer really hee hee) I can't quite see the advantage of an f3.5 lens on such short focal length when really focus oriented DOF (in my mind at least) isn't what's expected. It's more about the perception of depth created by having a lot in the shot.... Isn't it?

Wouldn't you want to cone down to f11 and lower to try and keep as much focus as possible throughout the image?

There is a difference of £100 or so in the lens.

I'm using a 7D, both are well within budget (the f3.5 is £400) and I'm hoping that somebody may be able to explain the advantage of one versus the other...

Your help is highly appreciated,

Thanks,

Dan

 

[TheNissanMan]

I have the 7D and the sigma 10-22, when I bought mine was advised on here not to go for the 3.5 as it is not as good as the other.

So far happy with the lens although not used it much. Best price at the time was Kerso.

 

[Claire]

The maximum aperture is one way of looking at it, but like you say it's not the kind of lens that you will use wide open. The other thing to consider is the slightly wider maximum aperture which will mean that the lens is brighter to look through and therefore compose an image.

I personally use the f/4-5.6 version and I love the lens. I see no point in upgrading.

Consider also if you will be using filters. 77mm filters are expensive enough, 82mm even more so!

 

[lancsoatcake]

I assume the 3.5 is larger then...

Struggling to process I'm correct

Thanks peeps!

Dan

 

[stuartm1]

I assume the 3.5 is larger then...

Struggling to process I'm correct

Thanks peeps!

Dan

I've got the f3.5 version and in hindsight wish I'd went for the f4-5.6 Sigma.

I don't think there's much difference in quality but it's far easier and cheaper to get 77mm filters than 82mm especially if you plan to use ND filters.