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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.

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5k views

How do you add lens profiles to Adobe Lightroom?

I just received my Sigma 18-35 and love it. I use Lightroom for editing and according to Adobe, the Sigma 18-35 f 1.8 is supported. When I go to lens correction, I don't see the lens available. Do ...
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0answers
44 views

How can I use sigma zoom 100-300mm on my new Nikon D5100? [duplicate]

Is it possible to use a Sigma zoom 100-300mm lens on my new Nikon D5100? I tried fitting it but couldn't. Can you suggest an adaptor or something that I can fit into to use this lens on my Nikon ...
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1answer
45 views

Zoomlens “pops” around a certain focal length. What failure is my lens showing?

For a while my Sigma 18-50 f/2.8-4.5 lens has been shaking the viewfinder image once in a while. After asking a related question I settled for the explanation that it was the image stabilisation ...
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2answers
99 views

Why does my Sigma lens make a high-pitched ringing noise on my Canon camera?

I have a Canon EOS T3i 600D. When I use a Canon-branded lens (18-55mm), the camera works well. When I change to the Sigma macro 18-250mm and turn the camera on, I can hear a ringing noise, like ...
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3answers
158 views

Which mount is this Sigma lens for?

I have lens that does not fit my Nikon or Canon. Can someone tell me what camera this lens is for?
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2answers
163 views

Why does my lens refocus when the f-stop is changed?

I have a prime Sigma f1.4 50mm lens on my Nikon D90 in P mode and focus mode on a set point of the field and notice that when I am using a tripod and change the f-stop that the camera changes the ...
6
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3answers
2k views

What causes auto-focus “freezing”?

On occasion, the auto-focus system in my camera and/or lens just stops working. I'll be holding down the shutter release halfway and tracking a subject and I can feel/hear the auto-focus system ...
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1answer
60 views

TTL seems not to work on D7000 with sigma ring flash for dental photography

Cameras: D100 D7000, lens Nikon 105mm macro, Sigma ring flash Photos taken: facial head shots from approx 6 feet away from subject (f10) and dental intra-oral photos including frontal, right and left ...
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1answer
59 views

Can a Sigma dp3 quattro be used for Macro Photography?

I am considering to spend more time on macro photography of everyday items, centimeter sized, in most cases larger, say 5 cm and up. (No tiny ladybugs etc). Photography authorities say a macro lens is ...
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1answer
64 views

Is Sigma AF 70-300 f/4.0-5.6 DG APO Macro compatible with Nikon D5100?

Is the Sigma AF 70-300 f/4.0-5.6 DG APO Macro compatible with the Nikon D5100 camera?
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1answer
3k views

How is the quality of the Sigma 18-300 DC Macro lens?

I'm considering the less expensive Sigma 18-300 DC Macro lens vs. the (way) more expensive Nikkor 18-300. Would I be losing the gains by buying a 24 MP Nikon 3200 if I went with the Sigma?
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2answers
234 views

Can changing metering mode change focus?

I've Canon 600D and I use the back button to focus and the shutter to meter, I've been using spot metering for over 2 years for now and I understand what's the difference between it and evaluative, I ...
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2answers
86 views

what is the camera fstop and lens fstop correlation? [duplicate]

my sigma 50-500mm DG lens has range of f 4.5 - f 6.3, but in my Canon 70D camera I can still set fstop to 22 in manual mode. 1)How these two correlate? 2)Would a f22 setting in camera will have no ...
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2answers
447 views

High Speed Sync with Canon 7D and Sigma EF-610 DG Super

Does anyone know how or if high speed sync can be triggered using a Canon 7D and a Sigma EF-610 DG Super? After making all the settings as per the 610's manual, as soon as I meter/focus the camera ...
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2answers
204 views

Results of a Sigma 12-24mm Full Frame Ultra wide lens on a Canon 70D

I've ordered the Canon 70D and I'm looking for a good wide angle lens for interior architectural photography. I've got a good opportunity to get a Sigma 12-24mm Full Frame Ultra Wide Lens fairly ...
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1answer
82 views

Can the Sigma 2x teleconverter be hacked so it will work with the Sigma 50-500mm?

Does the autofocus hack (where you mask off connectors on the teleconverter to make it misreport the aperture) work on sigma 2x teleconverter fitted on Sigma 50-500mm DG lens for Canon cameras?
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1answer
28 views

Canon 1000D and sigma ef-610 flash issues

I have a canon 1000D DSLR and a Sigma EF-610 flash. The Flash seems to work find in full Auto mode when attached to the camera body, but when I try to use it off camera I run into problems. When the ...
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1answer
381 views

Which Low light zoom lens with image stabilization for DSLR [closed]

Recently started doing some DSLR videos for a website. For testing purposes I got a t5i with Sigma 50mm 1.4F lens. Most videos are in low-light settings. I've been using a tripod and it's worked ...
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2answers
1k views

Is it worth to buy old Sigma lens instead of Nikkor?

I'm amateur and I want to try something new. I have Nikon D3100 with Nikkor AF-S DX VR 55-200/4,0-5,6 G ED and I'm shooting everything - animals, landscape, people, sport, ... (like real amateur :D ). ...
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2answers
684 views

What Nikon cameras is a Sigma AF-k lens compatible with?

I was recently given a Sigma AF-k lens and told it was Nikon compatible. I am trying to get a better handle of what the AF-k stands for. I have both a Nikon F4s and a D5100 that I use and not ...
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1answer
150 views

How does the Minolta AF 24 mm f2.8 compare to the Sigma AF 24mm F2.8?

I have an APS-C Sony A77 and I am looking for a 'walk around lens' which is wide enough to take around the city and fast enough for lower light conditions, ideally below 200€ german. With these ...
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3answers
330 views

How important is it to buy the Sigma USB dock?

I'm going to buy the Sigma 18-35mm f/1.8. Is it worth spending $60 on the dock? I've read in reviews that it's a bit unnecessarily complicated to use, but that's not my primary concern. Can I do just ...
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2answers
2k views

How good is Sigma 70-300mm F/4-5.6 DG Macro Lens

Planning to buy this lens for my D-90, but not sure how good it is, though i have narrow down my search based on budget constraint. But i have read that it has given good results for wildlife ...
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10answers
2k 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?
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1answer
87 views

Which polarizer is better [duplicate]

I have been looking at get a polarizer and some nd filters for my sigma 50mm art lense. From my research, it looks like the best are B+W and Hoya. Does anybody have any experience with either brand on ...
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1answer
69 views

What should I buy? (new body vs. lens) [duplicate]

Right now I have a Nikon D3100, a Sigma 50mm f1.4 (older version). Right now I have almost 1300$. What do you think I should buy? I'm hesitating between the Nikon D7100 or buying a Sigma 35mm f1.4 ...
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1answer
369 views

Sigma 18-35mm F1.8 Canon

not sure if this is the right place to ask but I have been on the waiting list for the Sigma 18-35mm F1.8 DC HSM A Canon lens for a while. I'm getting pretty anxious, my wife is due in 2 weeks, so I'm ...
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5answers
3k views

is there a real difference between “digital” and “film” lenses?

I'm looking at the Sigma 20mm F1.8 EX DG ASP RF lens right now to use on a 35mm film Camera (Nikon N80). The DG stands for "Digital Full Frame" according to Sigma, but they don't say what the ...
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2answers
4k views

Sigma 17-50 f/2.8 or Sigma 17-70 f/2.8-4 (C) for Canon 600D

I know this has been asked alot.. I have Canon 600D with Canon EF-S 18-135mm f/3.5-5.6 and Canon 50mm f/1.8 lenses. I'm looking to upgrade the zoom lens with something with better IQ, sharpness, ...
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3answers
155 views

How do I find the filter size for Sigma lenses?

I know that my Nikon lens takes a 52mm filter size, however I also have two other lenses but they are Sigma lenses and don't have the mark to find the size for filters. How do I find the filter size ...
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0answers
21 views

Looking for sigma adaptor to canon EOS 550d [duplicate]

Here's the situation.. I'm looking for a sigma lens adapter to a CANON 550D. The lenses are: A Sigma ZOOM, 24-70 mm, 1:3.5-5.6 UC; A Sigma ZOOm, 100-300 mm, 1:4.5-6.7 UC; Minolta AF ZOOM 35-70 mm, ...
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3answers
128 views

Blurry Pictures. Lighting fine.

I recently shot some family pictures for a friend's family event (thank god I didn't get paid for this job). The location was problematic with the light - very strong late afternoon light and I don't ...
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3answers
516 views

Why are my photos taken with the Sigma 18-50mm f/2.8 coming out blurred?

I'm new to photography, and I don't know why the pictures I'm taking are coming out blurred. Here's a sample image, taken with the Sigma 18-50mm f/2.8 on my Nikon D5200 at 18mm, 1/60s, f/2.8 and ISO ...
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2answers
811 views

What are the significant differences between Tamron and Sigma 17-50mm f/2.8 lenses?

I am so close to buying one of these two lenses, both with image stabilization for my Nikon D7100. Can anyone help me decide by giving me any important differences or sharing any experience?
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1answer
414 views

Do I need an adapter to mount a Sigma lens to a Canon Rebel Ti3?

I bought a Sigma 70-300mm DG 4-5.6 Macro Zoom Lens for my Canon Rebel T3. Do I need an adapter of some sort to be able to attach the lens to my camera?
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2answers
128 views

Sigma lens mount change

I have the Sigma f2.8 focal length 24mm Super Wide 11 lens which I used on my Canon FD cameras and found to be very good. Question: Can I change the breech lock mount for a Pentax 42mm screw in ...
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1answer
298 views

Sigma 28-105 3.8 5.6 Lens not sharp with Nikon D7000 unless stopped way down?

I find that my Nikon D7000 is not producing sharp images with a Sigma 28-105mm f/3.8-5.6 lens. It is very soft from f/3.8 - f/11, but from f/13- f/16 it is sharp. But I cannot shoot with these ...
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1answer
851 views

What does “OS” mean on a Sigma lens? [duplicate]

I want to buy a Sigma 180mm F/2.8 EX DG Macro OS HSM Sigma. What does EX mean? What does DG mean? What does OS mean? What does HSM mean?
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2answers
391 views

How can I use a wireless trigger with a Sigma flash and a Nikon D3000?

I have a Nikon d3000 - jjc wireless flash trigger kit & Sigma EF 500 flash. I have a hotshoe & tripod also. I can get it to work together only when I am less than a foot away. I have 2 sets of ...
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1answer
712 views

Clipped bokeh circles at max aperture with wide aperture, short focal length lenses

I recently purchased a Sigma 30mm f/1.4 lens for my Canon 450D and noticed soon that at least wide open, any bokeh circles in the lower half of an image (in landscape orientation) seem to have their ...
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1answer
148 views

Pentax to Canon EOS [duplicate]

I have an older Pentax MZ-50 camera that came with a SIGMA 100-300mm lens. Can I get an adaptor so the lens will work with my Canon EOS 1100D? If so, where can I get one from? Any help would be ...
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4answers
811 views

Looking for a telephoto zoom lens - Tamron, Canon or Sigma?

Are Tamron and Sigma trustworthy as compared to Canon? I am a beginner, so please help me. I have my kit lens Canon 18-55 mm. However I am looking for a telephoto zoom lens. For this reason a Canon ...
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1answer
244 views

Why doesn't my Sigma lens autofocus if the subject is initially way out-of-focus?

I have a Sigma 150mm F2.8 EX DG OS HSM APO Macro lens mounted on my Canon 6D. Even if AF mode is set to minimum-to-infinity range, if my subject is way out of focus (too far or too near), like, say, ...
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1answer
2k views

How do the Sigma flashes compare to (and work with) Canon flashes on Canon bodies?

Sigma produces some very powerful flashes, like the Sigma EF-610 DG ST and Sigma EF-610 DG Super, that cost a fraction of what Canon charges for their Speedlite of same guide number. I'm already ...
2
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1answer
200 views

Is it expected for the Nikon D5100 and Sigma 150-500mm mounting to be very tight?

I have a query regarding the Sigma 150-500 mounting on a Nikon D5100. I have got my Sigma 150-500mm today.... I am feeling that the lens is very tight to mount on my D5100. Is this expected?? I have ...
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3answers
2k views

Compatibility of Canon teleconverters with non-Canon lenses

I have two APS-C (70D and 600D) bodies with Canon EF and EF-s lenses, and Sigmas, among them the Sigma 70-200 f2.8 HSM OS. I am also considering getting the new Tamron 150-600 lens, pending reviews. ...
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2answers
920 views

Can I adapt a Sigma SLR lens made for Pentax K mount to a Nikon DSLR camera?

I now have a Nikon D3200 and the lens is not great. Can I adapt my Sigma Aspherical IF 28-300mm zoom lens, which I'm currently using on a Pentax MZ-30?
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0answers
102 views

How can I fire a Sigma 610dg Super with a TriggerTrap Flash Adapter?

I have a Sigma 610dg super flash that I wish to trigger with the TriggerTrap flash adapter (tt-fa1). Sadly I cannot make this work. I have tried two different TriggerTrap dongles but the flash never ...
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2answers
206 views

Nikon lens adaptor for Sigma f/4.5 70-210mm

Someone gave me a Sigma f/4.5 70-210 lens and it won't fit my Nikon D3200. Does anyone know what lens adapter I need?
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2answers
394 views

Lightroom lens information incomplete for Sigma lenses

When I import my photos in lightroom, the ones taken with Sigma lenses does not show the exact model designation contrary to Canon lenses that are presented with the full information. On my sigmas ...