Is it worth it to replace Sigma 18-35 f1.8 Art with Canon 16-35mm f4L

[TonyUSA]

Hello,

I am selling my Sigma 18-35mm f1.8 art (only for APS-C sensor) for $550 on my 50D to replace with Canon 16-35mm f4L to use it on full frame 5D m3 and have to come up with $450.

Is it worth it to do that in the term of picture quality?

Thank you,

 

[pixmedic]

if you want full frame coverage on a full frame camera....yes.

 

[bratkinson]

Although I don't have experience with either lens, I can say the 16-35 f2.8L ii is exceptionally sharp. From perhaps 10 feet away, I can read small printed text on a document the subject of the photo was holding. I use that lens as well for 2-3 foot 'closeup' work taking photos of stuff I've put on ebay.

Whether you go with the f4 or f2.8 version, I would expect you'd get the same results.

 

[TonyUSA]

I have other two hrs to make decision to let my Sigma go or to keep it... More suggestions are welcome.

 

[pixmedic]

what do you want to put it on?
if you want a lens for your 5DIII then you want the full frame lens. not really a difficult choice there.

 

[TonyUSA]

what do you want to put it on?
if you want a lens for your 5DIII then you want the full frame lens. not really a difficult choice there.

At the moment the Sigma lens is on 50D but if Canon 16-35mm f4L on 5D III will give me better picture quality then I would like to sale Sigma. But if over all picture quality of 50D with Sigma is about the same as Canon 16-35mm f4L then I just going to keep Sigma and not going to buy Canon 16-35mm.

 

[pixmedic]

what do you want to put it on?
if you want a lens for your 5DIII then you want the full frame lens. not really a difficult choice there.

At the moment the Sigma lens is on 50D but if Canon 16-35mm f4L on 5D III will give me better picture quality then I would like to sale Sigma. But if over all picture quality of 50D with Sigma is about the same as Canon 16-35mm f4L then I just going to keep Sigma and not going to buy Canon 16-35mm.

the sigma 18-35 is a DX lens. your not going to get optimal results with it on a full frame camera because the lens was not designed to cover a full frame sensor.
if your looking for a lens to put on a 5DIII, a full frame camera, then you really want to get a FX lens which was designed to cover a full frame sensor....
if thats the case, then the only sensible choice is to sell the DX 18-35 and buy the FX 16-35.
if your intention is to use the lens on your 50D then i would just keep the sigma lens, but since your original post said the lens was for a 5DIII camera, my suggestion
is to buy a lens meant for full frame cameras.


if your asking about image quality on your DX 50D, then i would just keep the sigma lens unless you really NEED that extra 2mm of width.

 

[TonyUSA]

On the other word, Would #2 will give me MUCH or just a bit better picture quality than #1?

1. Canon 50D with Sigma 18-35mm f1.8 Art

2. Canon 5D mkIII with Canon 16-35mm f4L

 

[pixmedic]

On the other word, Would #2 will give me MUCH or just a bit better picture quality than #1?

1. Canon 50D with Sigma 18-35mm f1 Art

2. Canon 5D mkIII with Canon 16-35mm f4L

ooohhhh..
i misunderstood the question.
a lot will depend on shooting conditions and what your are shooting.
however...
the 5DIII has a lot of advantages over the 50D in terms of overall performance, as well as low light capabilities since its full frame. its a much better camera.
its kinda hard to compare the two.
the 50d is a much older camera, much older tech.
i would definitely take the 5DIII combo over the 50d

you will see improvement in image quality, low light performance, autofocus performance...
its hard to say how much exactly.

 

[TonyUSA]

[/QUOTE]

if your intention is to use the lens on your 50D then i would just keep the sigma lens, but since your original post said the lens was for a 5DIII camera, my suggestion
is to buy a lens meant for full frame cameras.


if your asking about image quality on your DX 50D, then i would just keep the sigma lens unless you really NEED that extra 2mm of width.[/QUOTE]

Sorry, I didn't make it clear.

 

[TonyUSA]

Thank you, I will let my Sigma go today then.