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| Sigma 105mm f/2.8 EX DG Medium Telephoto Macro Lens for Canon SLR Cameras | 
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| Brand: Sigma
Category: Photography
List Price: $439.00
Buy New: $389.00
You Save: $50.00 (11%)
New (9) from $389.00
Avg. Customer Rating:  12 reviews
Media: Electronics
Autographed: No
Memorabilia: No
Fragile: No
Batteries Included: No
Maximum Focal Length: 105
Minimum Focal Length: 105
Shipping Weight (lbs): 1
Dimensions (in): 4 x 4 x 3.1
MPN: B0002P19XA
Model: B0002P19XA
UPC: 085126257279
EAN: 0085126257279
ASIN: B0002P19XA
Availability: Usually ships in 1-2 business days
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| Customer Reviews:
 Excellent December 3, 2007
3 out of 3 found this review helpful
I just love working with this macro lens and my Canon digital SLR XTi. Perfect for my dental, intraoral photography needs.
Excellent macro lens for dentistry November 25, 2007
6 out of 6 found this review helpful
I have employed my Rebel XT digital SLR into my dental office. I upgraded to the Rebel XTi (10 mpixels) for home. I purchased the Sigma ring flash with a Sigma macro lens for the Canon SLR family. If you look at the Lester Dine website this is basically what they sell for a few hundreds dollars more.
I compared the ring flash and lens with the ones offered by Canon and felt that it was worth saving $300 by purchasing the Sigma combo.
The macro lens/ring flash work well for dental purposes. After a little experimentation I discovered that I get the best images by using the aperature priority setting. All settings are used with ISO 400 speed. I set the aperature at 14-16 for intraoral shots. This gives the best depth of field. I also use the operatory light for intraoral shots. I set the aperature to 6 for full face shots.
I use autofocus but set the ratio to 1:2 to 1:3 for intraoral shots. This keeps the autofocus from "hunting". I frame the shot by moving towards the subject. Once I get close to the image that I like I use the autofocus to get the final focus for the picture.
Like I've wanted! May 13, 2007
2 out of 3 found this review helpful
This lens was everything what I waited ! Excellent sharpness and contrast, good finishing and a good price
Great lens May 12, 2007
3 out of 4 found this review helpful
I was looking for a macro lens to shoot detail shots of my knitting for my blog and a friend recommended this lens to me. I'm not a great photographer, but I've been able to get some really spectacular shots with this lens on my Canon Rebel.
Wonderful addition to SLR photography! January 3, 2007
12 out of 16 found this review helpful
The sigma 105 macro lens is a great way to explore new worlds with macro photography. I am using this lens with my 300D Digital Rebel and the results are fantastic. Now, small areas in my backyard and local parks offer unlimited photo opportunities. I would, however, offer several tips for beginners with macro photography. First, and foremost buy and use a tripod. With many subjects, depth of field is critical and any movement whatsoever will be evident in your images. Second, if your camera can allow it, use mirror lock-up and a remote release to prevent movement. Third, have plenty of patience! Expect to take a lot of images to come up with keepers. No big deal for digital cameras, and don't be afraid to experiment.
Here is a fun project that I have been using with this lens courtesy of my high school photography teacher:
Take a nail and tie a 10 ft. piece of string to it. Then, as you are walking along a trail or path, randomly stick the nail in the ground. You now have a circle with a 10 ft. radius. Challenge yourself to shoot 10, 20, 50 or even 100 images within that radius. It will certainly cause you to look, and more importantly see differently.
This purchase is perhaps the best piece of equipment that has helped my photography.
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