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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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10 views

Wide Angle Lens for Canon

I am planning to buy a wide angle lens for Canon 70D, so I need your input. Please suggest some good wide angle lenses at low cost which I can use on 70D as well as on full frame sensor cameras.
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1answer
32 views

What should I do if AF isn't working on my lens after sending it to Sigma for a different repair?

I have bought a Sigma lens for my Canon 600D. Since the beginning the photos were slightly blurred and lacked sharpness, independently of the aperture. So I sent it to Sigma for service. When I got ...
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2answers
61 views

How do I disable autofocus on my Nikon with a Sigma 10-20, which has no manual focus switch?

Just purchased a Sigma 10-20 f/4-5.6 DC HSM lens. In attempting to capture astrophotography, the lens continuously tries to find a focal point in the sky, and doesn't. So I attempt to turn it to ...
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1answer
105 views

Sigma 18-35 f/1.8 poor image quality

I recently bought for my D3300 two new lens. The Nikon 50mm f/1.8 and Sigma 18-35mm f/1.8 Art. As I expected, due to specifications and measurements in DXOMark, the 50mm lens is awesome. A lot more ...
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0answers
26 views

SIgma 70 - 300 APO DG Macro Lens Zoom doesn't working after 270

My new Sigma 70 - 300 APO DG Macro lens zoom ring is not working after 270mm. In this situation what can I do? N.B: No external pressure is not given.
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0answers
61 views

Travel arrangements with Sigma Lenses? [duplicate]

I know there are a lot of threads on travel photography, I read some, but found that most are out of date, however, manufacturers kept innovating, and that starts to confuse a lot of newbies like me. ...
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2answers
40 views

Does the Sigma 70-300 AF-D work on the Nikon D3200?

When I mount the lens the camera asks me to set the aperture to the lowest setting and lock the ring. When I lock the ring the lens works but the auto focus is non existent. The seller on eBay that I ...
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2answers
69 views

Can RAW -> DNG convertion harm image data?

I tried Adobe DNG Converter with X3F files produced by Sigma DP1x and everything seemed fine until a couple of files I found with the same symptoms: (OK) Sigma Photo Pro (.X3F -> .JPEG): ...
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3answers
289 views

Why don't Canon and Nikon lock out third-party lens makers?

Context Odd question but looking at the market, I see Tamron/Sigma making lens for first-party companies such as Canon, Nikon and Sony. For manual lens such as Zeiss ( for Canon/Nikon) I see that ...
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1answer
368 views

Is the new Sigma MC-11 Converter just another alternative to adapters such as metabones?

Apparently Sigma has a new adapter that can be used to mount Canon lenses on the A7 lineup of mirrorless full frame bodies. ...
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0answers
52 views

Canon vs Sigma vs Tamron lenses? [duplicate]

Is there a significant quality difference between lenses made by Canon and those made by Sigma or Tamron? Specifically, I have been looking at the EF 300mm f/2.8L IS II USM: but if the Sigma or ...
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3answers
114 views

How can I decide between the Sigma 10-20mm f3.5 or f/4-f5.6 for real estate? [closed]

I manage an estate agent in the UK and we use a mixture of professional photographers and our own in-house staff to photograph property. We're looking to upgrade our hardware and would like to know ...
2
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2answers
122 views

Will old Sigma and Tamron EOS lenses work on Canon 600D?

I have a Canon EOS 5 with a Tamron 28mm to 300mm AF lens and a Sigma 100 to 300mm lens. Both work well with EOS film cameras (I've had several in the past). I am now looking to upgrade the body to a ...
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2answers
45 views

Where can I get a replacement lens hood for my Sigma 28mm f1.8?

I have a lens (the Sigma 28mm F1.8 EX DG Aspherical Macro) but the lens hood is lost. Where can I buy a new one? Can I use any lens hood that fits my lens?
3
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2answers
154 views

How do the 50mm f/1.4 lenses from Sigma and Canon compare?

I'm looking to buy a "nifty 50" for my APS-C Canon. I'm stuck between the Canon EF 50mm f/1.4 USM Lens and the Sigma 50mm f1.4 EX DG HSM. What are the significant differences between these lenses and ...
1
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1answer
86 views

Sigma 18-35mm f/1.8 rattling sound

Just bought it used and when I shake it it makes a rattling sound. I know lenses with stabilization usually make that sound but this lens hasn't got that. So, is it normal or is something wrong? It ...
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1answer
1k views

Why are photos taken with my old lenses all out of focus on my new Nikon D5300 body?

My Nikon D80 died, and I was bought a new D5300, body only. All the photographs are out of focus when I use the lenses I used with my D80. Why would this be? I'm using the Sigma 18-50 f/3.5-5.6 DC, ...
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0answers
46 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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4answers
574 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
283 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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1answer
147 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
171 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
111 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
178 views

Zoom lens “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
136 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
289 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
113 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
45 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
973 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 ...
2
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2answers
205 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 ...
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5answers
1k 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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1answer
247 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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1answer
93 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 ...
1
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1answer
89 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 ...
2
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2answers
353 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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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
137 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 ...
10
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5answers
5k 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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3answers
315 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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2answers
7k 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
756 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
9k 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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1answer
502 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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1answer
2k 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
2k 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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2answers
139 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
361 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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2answers
577 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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1answer
171 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
1k 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 ...