Sigma Lente 18-50mm f/2.8 EX DC Macro para EOS Digital da Canon

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

Great all-around lens.:
I have used it for a wide variety of shooting situations:
- landscape of a sunrise
- Indoor family pictures. (Able to get great
pictures in low-light due to large aperture
across full focal range)
- Surprisingly good macro capability.
- Also incredibly fast outdoors in daylight
(again due to latge aperture across focal range)

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

I also have a 50 -150 F/2.8 Sigma and this one makes a nice pair all the way from 18 mm to 150 mm, F2.8, to shoot video with 7D.
The footages from both lenses look as if shot by one lens at different focus length.

So, I mostly use these 2 lenses and nothing else, except for special occasions, such as very wide or very long.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

This lens is perfect if you want to replace the canon 18-55mm kit lens.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

Just got the 550D and this was one of my first two lenses I got for it. It is an excellent lens.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

I haven't had a chance to use the lens a lot yet. I bought it to replace one of my two copies of the Canon EF-S 18-55 f/3.5-5.6 IS. I wanted a constant 2.8 but didn't want to pay $1800 Canadian for the Canon 16-35 f/2.8L II.

I am impressed with the build quality and the performance of the 2.8 aperture. It is a little soft in the corners at 2.8, but realistically it won't be used that much at 2.8 except for situations where a little softness isn't a big issue. Once you are at f/4 it is very sharp. The colours are much nicer that the Canon 18-55 IS. I love the tight depth of field and the nice background blur (bokeh). Macro 1:3 is a nice bonus.

I kept one copy of my 18-55 IS because I find this lens tough to use with a flash and that isn't any fault of the lens. I am still learning to shoot in Manual mode with a flash and I still like to user Program mode to ensure I get a good shot when needed. Once I am in Program mode on my Rebel XT or Rebel T1i the camera always opens the lens wide open which doesn't give me the best results. I tend to use the 18-55 for situations like this. I am sure I would experience the same problem with the Canon 16-35 f/2.8.

This lens has completed my kit. This lens along with my Sigma 10-20mm f/4-5.6 DC EX, Canon EF-S 18-55mm f/3.5-5.6 IS, Canon EF 50mm 1.8, and Canon 70-200mm f/4L has given me the ability to have good coverage of focal lengths with high image quality at a reasonable price.

Great lens – highly recommended.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

Basing value on cost, it's a great lens. Realistically, you get what you pay for, and, well, this just isn't L-lens quality, nor should you expect it to be.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

Outdoor art, architecture, landscapes and macro shots. Auto focus is quiet and fast. Solid feel. May be heavier than comparable Canon lens.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

I use this lens for landscape and closeups. It has not dissapointed. Good in low light, durable and lightweight. Very happy with this purchase and all my other Sigma lenses.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

I bought this lens for my friend as a birthday gift and he loves it.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

I read the customer reviews on this lens before making my purchase, hoping that I would be able to sing its praises too. Unfortunately however, the lens I received was a complete disappointment. In particular, the lens was very dark. Even in bright evening (outdoor) light, images were dark regardless of the setting (Auto, AV, TV, Manual). But the real deal killer was the grainy images. After my outdoor walk-around shoot to test the lens, I came inside and set up my tripod and took a series of images using the Sigma and a series using the same settings with my Canon 30D kit lens. Again, I was very disappointed with the Sigma lens. While I din't expect image quality of a $$$ lens, I did expect clear and sharp useable images which this lens did not provide. I am going to save my money for a Canon lens.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

- Low light capabilities
- Seems durable
- Average image quality

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

I bought this lens as a low-cost, light-weight alternative for my Canon 24-105 mm zoom in conjunction with my Rebel XSi. I have taken some 300 shots with it. Results have been very good: sharp photos, vivid colors (particularly reds and oranges). The f/2.8 aperture is also good to isolate foreground subjects in portraits. I am pretty much satisfied.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

This is the first lens I purchased for my 50D.
I'm very happy with its ability in the lower light.
The pricetag on it definitely makes it a good value.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

This lens shines as a portrait lens when used in the long half of its range. In good light the AF is very good, in dim light it struggles a bit. Its weak point is when shooting strongly backlit subjects at the wide end- it produces excessive purple fringing. This makes it less suitable for landscapes. Actually I have gotten better results at 18mm with the Canon 18-55 IS kit lens when stopped down to f8 or 11. For studio use, however it has been great and the wide aperture is a plus.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

I was a little nervous about spending all this money and not be happy with the quality. After all, I didn't want to sacrifice the detail in a photo by not spending more on a reliable canon lens.
After downloading the photos, I honestly cannot tell the difference between my photos with the Sigma lens and the same photos using by buddy's high end Canon lenses.
I'm quite pleased. And I'm excited to play around with the macro capabilities of this lens. It's fun getting a little artistic with the Christmas ornaments and gifts--composing them with different depths of field.
Having the 2.8 aperture is great for indoor sports. I also like that I can finally have a nice depth of field in my background.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

f 2.8 incredible results in very sharp and quick seal its economical price compared to a 2.8 canon would buy twice.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

I used on my Canon 50D, very good sharp lens, good macro capability.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

Solid construction compared to equivalent Canon EF-S and Tamron. 1:3 close-up can focus close (pseudo-macro?). Warm color compared to Canon and Tokina. Compact. Less expensive than Tamron and Canon. Constant aperture great for video.

No IS/VC. No HSM for Canon mount, loud if you AF during video. The Lens hood when reversed means holding the focus ring awkwardly in MF. Sigma has a reputation of QC issues but moire-AF testing on my copy seemed okay.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

For the price, this is an awesome lens.

Comments about Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Macro Autofocus Lens for Canon Digital EOS:

I purchased this lens to replace the 28-135mm IS kit lens that came with my 50D. This is a WAY better lens. Image quality is spectacular!

My only problem with this lens is the AF has horrible front focus throughout the entire range. I had to max out the AF Microadjust on the 50D to get it reasonably close. It will be sent in to Sigma for calibration in the next couple of weeks. I also don't understand why they didn't put HSM on the canon version of this lens like they did the Nikon.

If they put image stabilization and HSM on this lens it would be perfect!