Sigma are a Japanese company which produce cameras, lenses and flashes. They're most widely known for their selection of lenses which are compatible with cameras from other manufacturers.
2
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1answer
258 views
Which Better Beamer model for the Sigma EF-530 DG Super Flash
I'm looking to order a Better Beamer flash extender for my Sigma EF-530 DG Super flash however, I can't find which model would fit it. Anyone can point me to the right model?
Thanks
16
votes
9answers
11k views
What features differentiate Nikkor and Tamron/Sigma lenses?
I'm wondering if anyone has an opinion about Nikkor vs. Tamron and/or Sigma lenses. Is it worth the extra money to purchase Nikkor lenses? I haven't had the chance to compare these. Are the Nikkor ...
10
votes
2answers
677 views
How can I determine if my Sigma 10-20mm lens copy is appropriately sharp and focusing right?
I just purchased a Sigma 10-20mm lens (Canon mount) and based on the reviews I was aware that many people receive copies of the lens that are soft or don't focus properly. I purchased from B&H, so ...
4
votes
3answers
456 views
The green light is blinking on D5000 when I mount a Sigma 24-70 EX DG Macro
I just got the lens. I know it doesn't autofocus on my camera body because it doesn't have built in motor but at least it should be usable in manual mode right?
5
votes
2answers
571 views
Which Nikon-mount Sigma macro zoom lens for a beginner?
I am a photography beginner.
I have a Nikon D90 with the kit lens. I am planning to buy an additional lens.
I started with a Canon S3IS, and shot some macro photos, which I think are good.
I want ...
5
votes
2answers
710 views
Wider angle lens for indoor photography?
I'm an amateur photographer and only just picked up my first DSLR (went for a 50D with a basic 18-55mm Canon IS lens) and was considering purchasing a wider angle lens such as the Sigma 28mm f/1.8-22 ...
11
votes
5answers
1k views
Sigma 10-20mm f5.6 alternatives?
I've been wanting to add a wide angle lens to my collection for a while now. Sigma 10-20mm f5.6 looks good. I was looking at it about 2 years ago. I was wondering if there have been newer wide angle ...
6
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4answers
3k views
Which lens is sharper? The Sigma 18-50mm f2.8 or the Tamron 17-50mm f2.8?
Specifically:
Sigma 18-50mm f/2.8 EX DC Macro (not the previous non-macro version. HSM is only on Nikon fit)
Vs.
Tamron 17-50mm f2.8 SP XR Di II LD VC Lens (not the cheaper one without vibration ...
23
votes
9answers
1k views
Are Sigma lenses comparable to Canon lenses for a Canon camera?
I always feel that I should buy a Canon lens for my Canon camera, and Sigma would just be a cheap knock-off. Is that the case?
