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  Reviews by: Joe Hunt  
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Sigma 10-20mm F4-5.6 EX DC HSM

111_small
Review Date: Nov 21, 2008 Recommend? yes | Price paid: Not Indicated

 
Pros: Since my last review I've had plenty of time to work with this lens. I'm very pleased with my purchase, let the pictures speak for themselves.
Cons:
You will find the similar comments about the ultra wides. CA in the corners, all depends on how bad the copy is. If you're not happy, exchange it and try another one. I tried the Canon, but kept the SIGMA.

Links to some sample images:

link 1 link 2 link 3 link 4 link 5
 
Canon EF 100-400mm f/4.5-5.6L IS USM

ef100_400l_1_
Review Date: Jul 6, 2008 Recommend? yes | Price paid: $1,256.00 | Rating: 9 

 
Pros: Solid workhorse lens, good build, a little soft @400mm but can be sharpened with a tight fstop. Delivers sharp images in the middle zoom ranges and at 100mm. Good color saturation and I get some nice bokeh as well. IS is a nice add, helps on the long shots if you need it.
Cons:
None really, this is a tank and I like it.

I picked this lens up after reading about it here on FM. I thought about it long and hard before buying one. I'll be honest...I shot some real crap the first month or so, before I knew what I was doing. Once Ihad a handle on it I'm very satistfied with it. Just wish it was a 500 : ^).

I went on safari in East Africa here are some sample shots:

http://www.flickr.com/photos/22910212@N03/2200928600/

http://www.flickr.com/photos/22910212@N03/2571860754/

http://www.flickr.com/photos/22910212@N03/2205347316/

http://www.flickr.com/photos/22910212@N03/2204557169/

http://www.flickr.com/photos/22910212@N03/2340963969/
 
Canon EF 17-40mm f/4L USM

ef17-40_4l_1_
Review Date: Jul 6, 2008 Recommend? yes | Price paid: $600.00 | Rating: 9 

 
Pros: Good build, tack sharp if you use it properly and understand how to use a wide angle
Cons:
Price, I think the lens is slightly over priced

When I first bought this lens I was using it incorrectly. My expectations for a lens in this price range were very high. My first images were disapointing and what I thought I was buying was the answer to all my image woes. The mistake that I was making was that I scrutinizing detail at 100% image size...couldn't see the forest for the trees.

I use it for all types of photography, it's a great lens

LINKS

http://www.flickr.com/photos/22910212@N03/2630054459/in/set-72157603737934728

http://www.flickr.com/photos/22910212@N03/2630054495/in/set-72157603737934728

http://www.flickr.com/photos/22910212@N03/2298887383/in/set-72157605560790728

http://www.flickr.com/photos/22910212@N03/2571008185/in/set-72157605560790728
 
Canon EF 100mm f/2.8 Macro USM

ef_100_28_1_
Review Date: Jul 5, 2008 Recommend? yes | Price paid: $400.00 | Rating: 9 

 
Pros: Great build, tack sharp, decent price for the quality
Cons:
none
 
Sigma 10-20mm F4-5.6 EX DC HSM

111_small
Review Date: Jul 2, 2008 Recommend? | Price paid: $449.00

 
Pros: Sharp! Both ends of the zoom and wide open. Good build, nice contrast, bag and hood included. Price - bang for the buck!
Cons:
A little CA but compared to the Canon 10-22 I sent back, no worries. The ususal distortion in the corners.

Finally got my good copy of an ultrawide angle lens, I should have kept the first Sigma. This copy is great.

Photos here:

http://www.flickr.com/photos/22910212@N03/2625830453/

http://www.flickr.com/photos/22910212@N03/2626624488/

http://www.flickr.com/photos/22910212@N03/2624962277/

I grabbed the camera as a storm front moved through our area. I was thrilled with the results.
 
Sigma 10-20mm F4-5.6 EX DC HSM

111_small
Review Date: Jun 6, 2008 Recommend? yes | Price paid: $499.00 | Rating: 8 

 
Pros: See review
Cons:
See review

I've read hundreds of lens reviews in FM before I buy anything, this lens was no different. Knowing the shortcomings of the Sigma 10-20, I purchased one and ran it through my tests. Comparing them to the 17-40 L this was a decent lens with some minor CA in the corners. Sharpness overall was good with only a few soft spots. I was a little disappointed so I thought I'll send it back and move over to the 10-22 EF and be done with it.

The Canon 10-22 was horrible and it's most likely a bad copy, but I tried everything I could to sharpen the image with fstop and the lens would simply not perform. Bummer. And so it goes back.

Having a decent copy of the Sigma in hand and letting it go is a bummer in hindsight, I should have kept it. I'm going to order one this weekend, hope it's a keeper.
 
Canon EF-S 10-22mm f/3.5-4.5 USM

EF10-22
Review Date: Jun 6, 2008 Recommend? no | Price paid: $599.99 | Rating: 1 

 
Pros: None
Cons:
Plenty

Must have gotten a bad copy of this lens as I found that my copy was soft in the center sharp on the sides and had CA in the corners that was pretty bad. For the price that I paid you would expect a lens that would respond to fstop adjustments to get some sharpness going. I ran a series of tests on a tripod and just could not get anything going.

Compared to my 17-40 L this this lens was a dog.