Open

by damned truths

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

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.

learn more… | top users | synonyms

0
votes
1answer
75 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
vote
1answer
50 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 ...
1
vote
2answers
101 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 ...
0
votes
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, ...
1
vote
3answers
118 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
votes
5answers
2k 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 ...
0
votes
3answers
102 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 ...
0
votes
2answers
2k 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, ...
0
votes
3answers
254 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 ...
0
votes
2answers
922 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 ...
-1
votes
1answer
217 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 ...
0
votes
1answer
149 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?
1
vote
2answers
185 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?
0
votes
2answers
109 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 ...
1
vote
1answer
193 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 ...
0
votes
1answer
303 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 ...
0
votes
1answer
111 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 ...
0
votes
4answers
355 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 ...
0
votes
1answer
155 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, ...
0
votes
1answer
215 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?
0
votes
1answer
2k 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?
3
votes
1answer
843 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
votes
1answer
141 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 ...
1
vote
3answers
1k 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. ...
1
vote
2answers
368 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?
0
votes
0answers
68 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 ...
0
votes
2answers
158 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?
0
votes
2answers
265 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 ...
0
votes
1answer
504 views

Will a “Sigma AF Telephoto 1:5.6 f=400mm Multi-Coated Lens Japan for Canon AF 072” work with Canon EF mount?

Just have a quick question, recently purchased a cheap Canon 1DMK2 but until then I have exclusively used Sony DLSRs so I am not familiar with Canon mounts/lenses. I have been looking on eBay for a ...
0
votes
2answers
247 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 ...
0
votes
1answer
295 views

Nikon D70 and Sigma EF-500 DG Super NA-iTTL Flash

I have a D70 and Sigma flash gun, which I understand should work with the camera. I have read it is important to have the iTTL versions of the flash gun for it to be able to work with the iTTL ...
2
votes
4answers
768 views

Is 24mm F/1.8 Prime lens blur bokeh is good (not distorted face) for portraits

I want to buy and do a photos+video interview with Sigma F/1.8 24mm Fixed Prime. I did profile photos/interviews with my Sigma 85mm F/1.4 on My Sony A77 APS-C camera. I used to use F/1.7-F/2 as a ...
1
vote
1answer
377 views

What is the DIY repair potential of a Sigma 24-70mm f2.8 EX DG Macro (non HSM) lens?

Summary: Can anyone provide useful experience based comment on the potential for or cost of repair of the "zoom bearing" mechanism in this lens specifically or with lenses liable to be similar? My ...
0
votes
2answers
225 views

Macro lens for general purpose shooting

I have a EOS 650D camera and 50mm prime lens for it. At the moment I am thinking about upgrade and looking for a not too much expensive zoom lens. I read that Sigma 17-70mm F/2.8-4 DC Macro OS HSM ...
4
votes
2answers
687 views

How do you choose among different 70-300mm lens for Nikon DSLRs?

I have a Nikon D5100 and it's my first dSLR. I've played with the kit lens for a while and now want to explore the zoom category. I've shortlisted these 70-300mm lenses: Nikon AF Zoom-Nikkor ...
1
vote
2answers
232 views

upgrading from kit lens [duplicate]

Am bit new to DSLR .Interested in landscape My problem I feel kit lens came along with my 650D is not giving me sharper images.(Culprit might be myself) Budget problem for upgrading to Canon lens ...
0
votes
2answers
542 views

Will a Sigma 35mm f/1.4 cropped to DX mode give adequate results vs full-frame Nikon 50mm f/1.4?

I own a D800 and the Nikon 50mm 1.4. I'm wondering, what if I bought the new beast Sigma 35mm f1.4 (sell my nikon) and if I need a 50mm, I just enable crop mode, which roughly give me a 50mm. The ...
6
votes
1answer
407 views

When focusing at max zoom, focus is lost after zooming out. Is that normal?

On my Canon kit lens, I could completely zoom in, focus on the object and then zoom out to take the picture with the object still in focus. Now I have a Sigma 18-200mm (with a Canon 600D) and that ...
2
votes
3answers
2k views

Sigma 8-16 vs Canon 10-22

The title says it all. I read mixed reviews about the Sigma lens and wanted to know your opinion about it. Some people say its sharpness is not that great as compared to Canon within the 10-16 range. ...
0
votes
3answers
3k views

70-200mm lens: Canon or Sigma? f/2.8 or f/4?

I was thinking of buying a Canon EF 70-200m f2.8 mk1 (I would love to buy mk2 but here's a noticable difference in price, at least in my country), but after awhile I came to the conclusion that this ...
0
votes
1answer
507 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 ...
2
votes
4answers
750 views

Which of these lenses allows a greater amount of light through at f/1.4: Canon 35mm f/1.4 or Sigma 35mm f/1.4?

I'm looking for a wide aperture wide angle lens to use with my 5D III body. I'm planning to use this lens for reportage shots in low light conditions. After doing some research, I'm trying to decide ...
0
votes
1answer
1k views

Is there an adapter for a Sigma SA mount lens to fit a Canon EF mount?

I have a Sigma 24mm ultra-wide lens; does anyone know of an adaptor that will make this lens fit my Canon 1V camera?
1
vote
1answer
2k views

Which lens-mount adapter do I need to buy to use a Sigma lens on a Nikon body?

I am a beginner and have been given a Sigma zoom 28-80mm f/3.5-5.0 macro lens. I would like to try this before paying out for a more expensive macro lens but it will not fit my Nikon D5000. Could any ...
15
votes
1answer
635 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 ...
2
votes
1answer
257 views

Why are the rings on my Sigma 28-80mm lens stuck?

I use a Sigma 28-80mm on a Canon Rebel EOS. Neither the zoom nor the focus rings will turn. Is there something that I could diagnose the problem? Can I fix this myself or will I have to send it in for ...
3
votes
2answers
340 views

Sigma 1:4.5 70-210 for Olympus - will this work for Canon 600D with an adaptor?

I have an old Sigma Zoom lens used with a film Olympus OM10 (the lens says 'Made for Olympus). It has manual aperture control on the lens and manual focus. Is there any point getting an adaptor for a ...
1
vote
2answers
2k views

What Canon/Tamron/Sigma standard zoom lens to choose?

I have a Canon 600D with a kit 18-55 f3.5-5.6 IS II lens. Now I want to upgrade it with my not very loose budget. Three main things I want to improve with a new lens are: larger aperture better ...
3
votes
2answers
1k views

Sigma 150-500 for wildlife?

I will be spending next summer up in Alaska and want to get some wildlife shooting in. I would like to start planning now for what lens to save up for. I have been looking at the Sigma 150-500. It ...
0
votes
1answer
849 views

Sigma EF610 flash compared to Sony HVL-F43AM

I'm in the market for a flash for my Sony A57. The two I'm focused on are the Sony HVL-F43AM for around $350 or the Sigma EF610 for around $250. They both seem very similar from a feature ...