Which lense of these lenses would u use?

[bobandcar]

Canon 18-55 3.5-5.6 efs is

Or

Sigma 28-70 2.8-4 dg

I am using a t3i

Which lens would you use and why?

I know kinda open ended but if these were your only choices.

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[pixmedic]

personally I would use the 28-70 f2.8-4 if only for a better aperture range. Granted, you dont get near as much on the wide end, but I think its still a good walk around lens and certainly better in lower light. I would be willing to sacrifice the wide end for a better low light lens. The biggest advantage to the Canon lens though is the image stabilization, and if that is important to you, then the choice is a no brainer. I guess it would depend on price. You would be better served, I think, to spend a little more money and get either the 17-50 or 28-70 f2.8 from either Tamron or Sigma.

[bobandcar]

Let's not bring cost into the equation please.

[mjhoward]

This is like asking if I would choose an umbrella or sunglasses without knowing if it is sunny or raining.

[bobandcar]

Not true, if you choose sunglasses u are totally screwed if it pours.
With this. You still have a useable lense either way

[pixmedic]

both lenses are very usable, and both make a decent walk around lens. I told you why I chose the lens I did. For me, price is definitely a factor, but even if you said both were available for the exact same price, I would still choose the 28-70mm f2.8-4 for the exact same reason I stated earlier. there really isn't a wrong lens to choose there, but since you asked...that's my answer. hope that helps you some.

[g13a]

It all depends what you shoot and what are your requirements..
If you are looking for a lens with low light ability then you should go for 28-80 f2.8-4 DG
I always prefer 18-55 f3.5-5.6 because of following reasons..
1.Can be used at 18mm as wide angle
2.Single General Purpose lens
3.It has the Image stablization,so I get advantage of shooting two stops below.
4.It's cheap and lightest lens I have ever used.(Although canon have compromised on built quality,optically this lens is very sharp and can give you outstanding results)

[Dao]

Canon 18-55 3.5-5.6 efs is

Or

Sigma 28-70 2.8-4 dg

I am using a t3i

Which lens would you use and why?

I know kinda open ended but if these were your only choices.

If I plan to shoot some wide view shot, I will take the 18-55mm (because it has a shorter focal length) , if I plan to take a portrait shot, I will take the Sigma (because it has a longer focal length).

[usayit]

I would choose 18-55 on that crop camera would be my choice.

[jaomul]

18-55. Good lens with more usable wide angle on a crop in my opinion

[TCampbell]

A 28mm focal length isn't a wide angle on an APS-C sensor camera. So the Sigma is offering you a range of normal through mildly telephoto. The kit (18-55) is offering you a wide-angle to moderate telephoto range. The sigma buys you about 2/3rds of a stop more light on the low end and a full stop faster on the high end of the range -- actually... the sigma probably buys you a full stop all around because the 18-55 lens can probably only do f/4 at 28mm (where the focal length matches the sigma.)

But if you ask which lens I would pick... I'd prefer a lens that can offer an f/2.8 focal ratio throughout the zoom range. There are several choices available.

[msaha]

18-55 as I still use it from now and then, decent walk around lens with my light 1000D

[Sw1tchFX]

yuck. Both are lousy.

[morganza]

personally I would use the 28-70 f2.8-4 if only for a better aperture range. Granted, you dont get near as much on the wide end, but I think its still a good walk around lens and certainly better in lower light. I would be willing to sacrifice the wide end for a better low light lens. The biggest advantage to the Canon lens though is the image stabilization, and if that is important to you, then the choice is a no brainer. I guess it would depend on price. You would be better served, I think, to spend a little more money and get either the 17-50 or 28-70 f2.8 from either Tamron or Sigma.

I agree with him.

[Joshonator]

I would go with the 28-70 and probably treat it as a constant f4 lens. 28-70 is a much more useful focal length for me and having 2.8 will be useful for many situations.

If you have a bit more cash to dish out get the tamron 28-75 2.8, best image quality for the price.