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Posts Tagged ‘Sigma’

Sigma warns of aberration bug affecting some of its lenses on Canon DSLRs

11 Aug

Sigma has issued an advisory for five of its lenses over an error that occurs when they’re used with select Canon DSLRs.

The issue crops up when the cameras’ “Lens aberration correction” function is turned on. According to the company, having the lens aberration feature enabled on the Canon EOS 6D Mark II, EOS 9000D (77D), EOS Kiss X9 (EOS Rebel SL2), or the EOS Kiss X9i (EOS Rebel T7i) cameras will result in an error when paired with the following lenses:

  • SIGMA 30mm F1.4 DC HSM | Art
  • SIGMA 35mm F1.4 DG HSM | Art
  • SIGMA 30mm F1.4 EX DC HSM
  • SIGMA 50mm F1.4 EX DG HSM
  • SIGMA 85mm F1.4 EX DG HSM

Affected users are advised to keep the lens aberration function disabled until a fix is released.

Full Product Advisory

Dear Canon EOS 6D Mark II, EOS 77D, EOS Rebel T7i, EOS Rebel SL2 Users

Thank you for purchasing and using our products.

We have found that some SIGMA interchangeable lenses for CANON are not fully compatible with EOS 6D Mark II, EOS 77D, EOS Rebel T7i, EOS Rebel SL2.

When certain lenses are attached to these cameras and the “Lens aberration correction” function on these cameras is set to “Enable” for Live View shooting, an error would occur.
Please set the “Lens aberration correction” function of the cameras to “Disable” when using SIGMA’s interchangeable lenses for CANON.

In addition, please also refer to other notice below, related to the usage of EOS mount SIGMA lenses on Canon cameras.

[Phenomenon]
When the lenses listed below are used on EOS 6D Mark II, EOS 77D, EOS Rebel T7i, EOS Rebel SL2 and the “Lens aberration correction” function on the camera is set to “Enable” for Live View shooting, an error would occur.

[Products concerned]

  • SIGMA 30mm F1.4 DC HSM | Art
  • SIGMA 35mm F1.4 DG HSM | Art
  • SIGMA 30mm F1.4 EX DC HSM
  • SIGMA 50mm F1.4 EX DG HSM
  • SIGMA 85mm F1.4 EX DG HSM

[Usage Notice for customers who are using EOS mount SIGMA lenses on CANON cameras]
When using the SIGMA lenses for CANON, “Peripheral illumination correction”, “Chromatic aberration correction”, “Diffraction correction” as well as “Distortion correction” from the “Lens aberration correction” function of the camera are not supported. Therefore, we recommend you to set them to “Disable”.
If those functions are set to “Enable”, the performance of the lenses may not be accurate.

For further information, please contact your nearest authorized SIGMA subsidiary / distributor.
http://www.sigma-global.com/en/about/world-network/

We appreciate your continued support for our company and products.

Articles: Digital Photography Review (dpreview.com)

 
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Sigma announces firmware update for Sigma 100-400mm f/5-6.3 OS Contemporary for Canon

05 Aug

Sigma has announced a firmware update for its SIGMA 100-400mm F5-6.3 DG OS HSM Contemporary lens for Canon mount. Version 1.02 of the firmware fixes problems with the optical image stabilization when the lens is attached to Sigma’s Sony E-mount converter MC-11 EF-E.

As usual, users who own the Sigma USB dock can update the firmware via the Sigma Optimization Pro software. Users who own the MC-11 converter can update by connecting the latter to a computer via USB-cable. In both cases, you should make sure you are running the latest version of Sigma Optimization Pro which is 1.4.1 for Windows and 1.4.0 for Macintosh computers.

Articles: Digital Photography Review (dpreview.com)

 
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Lensrentals on the Sigma 24-70mm F2.8 Art: a lot for less than the competition

29 Jul

Following some initial lab testing results, Lensrentals has published a full review of the highly-anticipated Sigma 24-70mm F2.8 Art. While lab testing suggests that it doesn’t quite keep up with the established, much more expensive options from Canon and Nikon, a competitive price tag is one of the lens’ major selling points. Depending on your budget and needs, that price difference might tip the scale. Reviewer Zach Sutton sums it up:

“However, here is where the Sigma shines once again, offering itself at a $ 1,300 price tag, whereas the Canon 24-70mm f/2.8L II sits at $ 1,750, and the Nikon 24-70mm f/2.8E at $ 2,400. The Sigma provides a lot for significantly less than the competition.”

Check out the full review and let us know what you think of the 24-70 in the comments.

Read Lensrentals’ full
Sigma 24-70mm F2.8 Art review

See our Sigma 24-70mm F2.8 Art sample gallery

Articles: Digital Photography Review (dpreview.com)

 
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Sample gallery: Around town with the Sigma 14mm F1.8 Art

25 Jul

The Sigma 14mm F1.8 DG HSM Art is a truly unique lens. Offering the widest aperture of any lens that bears the same focal length, it is very sharp, produces beautiful sunstars, and offers almost uncanny subject isolation given its ultra-wide field of view. In other words, it’s capable of imagery that no other lens on the market can produce. Check out our sample gallery to see for yourself.

See our Sigma 14mm F1.8 Art
sample gallery

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Articles: Digital Photography Review (dpreview.com)

 
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Firmware update fixes Sigma MC-11 AF issues with incompatible lenses

23 Jul

Sigma’s MC-11 mount converters allow you to use your Sigma SA mount and EOS mount lenses with Sony’s E-mount camera bodies, and now they work just a little better. The newly launched firmware version 1.06 fixes AF-issues that can occur with some lenses that are not officially compatible with the converter.

You can find a lens compatibility chart on the MC-11 product page, and further detail about the update on the Sigma support website. As usual, you can install the firmware using Sigma’s Optimization Pro software.

Articles: Digital Photography Review (dpreview.com)

 
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Sigma announces pricing and availability of 14mm and 135mm T2 Cine Prime lenses

14 Jul
The 14mm T2.0 will cost $ 4999 when it starts shipping later this month. The 135mm T2.0 will also ship in late July, for the same price.

Sigma has announced pricing and availability for its new Cine Prime lenses. The 14mm and 135mm T2 primes will be available later this month for $ 4999 each, or as part of two and seven-lens kits for $ 10,499 and $ 24,799 respectively.

Press Release:

Sigma Announces Pricing and Availability for the 14mm and 135mm T2 Cine Prime Lenses, Shipping This July

Full-frame sensor compatible, high-speed prime lenses bring Sigma’s esteemed Art lens technology to cinema cameras; the 14mm T2 FF and 135mm T2 FF begin shipping late July for a retail price of $ 4,999.00 USD each

Ronkonkoma, NY – July 13, 2017 – Sigma Corporation of America, a leading still photo and cinema lens, camera, flash and accessory manufacturer, today announced the availability of two brand new cine lenses: the Sigma 14mm T2 FF and 135mm T2 FF, which will both begin shipping late July 2017. Compatible with full-frame image sensors, these high-speed cine prime lenses are available for EF, E and PL mounts. They are available as individual lenses for a retail price of $ 4,999.00 USD each, or as part of two and seven lens sets for retail prices of $ 10,499.00 USD and $ 24,799.00 USD respectively.

Go fast and wide with the Sigma 14mm T2 Cine Prime
The Sigma 14mm T2 FF Cine Prime lens is the world’s first and only to offer an incredibly fast T2 at this ultra-wide angle focal length for full frame sensors. Bringing remarkable optical performance to the art of capturing moving images, the Sigma 14mm T2 offers cinematographers the opportunity for robust cinematic expression.

Resolving power like nothing ever seen before with the Sigma 135mm T2 Cine Prime
The Sigma 135mm T2 FF Cine Prime offers astonishing rendering performance unmatched by almost any lens on the market. Retaining the optical performance of Sigma’s original Art lens for the still photographer, this exceptional lens enables cinematographers to enjoy the highest image quality for shooting movies.

Both lenses offer the following benefits and capabilities:

  • Bright, T2 full frame maximum aperture
  • Capable of resolving up to 8K
  • Available in Canon EF, Sony E & PL Mounts
  • 180-degree focus rotation

The Sigma 14mm and 135mm lenses are fully compatible with full frame sensors. The addition of these lenses to the Sigma cine lineup expands the FF High Speed Prime Line to a total of seven lenses, from a super-wide 14mm to a brilliantly sharp telephoto 135mm.

Pricing for individual lenses and lens sets
The newest cine lens offerings from Sigma will be available individually as well as in sets for the following retail prices.

Individual lenses:
Sigma 14mm T2 FF – $ 4,999.00 USD
Sigma 135mm T2 FF – $ 4,999.00 USD

Two lens set with case:
Sigma 14mm T2 FF, 135mm T2 FF and a protective lens carrying case – $ 10,499.00 USD

Seven lens set with two cases:
Sigma 14mm T2 FF, 20mm T1.5 FF, 24mm T1.5 FF, 35mm T1.5 FF, 50mm T1.5 FF, 85mm T1.5 FF, 135mm T2 FF, and two protective lens carrying cases – $ 24,799.00 USD

The Sigma 14mm T2 FF and 135mm T2 FF Shipping Late July
The Cine 14mm and 135mm lenses and sets will begin shipping late July 2017 for EF, E and PL mounts.

Articles: Digital Photography Review (dpreview.com)

 
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Sample gallery: Sigma 24-70mm F2.8 DG OS HSM Art

12 Jul

The 24-70mm F2.8 zoom is one of the most versatile lenses out there and Sigma’s latest version, part of the optically-outstanding ‘Art’ series, has drawn a lot of interest since its announcement as an alternative to pricier first party lenses. Check out our gallery for some initial samples shot with the lens.

See our Sigma 24-70mm F2.8 Art gallery

Articles: Digital Photography Review (dpreview.com)

 
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Sigma updates MC-11 Sony adapter, adds support for 24-70mm Art lens and more

10 Jul

Sigma continues to add compatibility to its MC-11 adapter, allowing more Sigma SA and EOS mount Sigma lenses to be used on Sony E-mount cameras. And the latest round of updates adds compatibility with one of Sigma’s most anticipated and exciting Art lenses.

The MC-11 comes in two variations—the MC-11 SA-E for Sigma-mount lenses, and the MC-11 EF-E for Canon mount lenses. The new firmware makes the converters compatible with Sigma’s new 14mm f/1.8 HD HSM | Art and the long-awaited 24-70mm f/2.8 DG OS HSM | Art lenses. The MC-11 EF-E also becomes compatible with Sigma’s Cine Lens 14mm T2 FF and 135mm T2 FF in the Canon EF mount.

The company has also released new firmware for its 100-400mm f/5-6.3 FG OS HSM | Contemporary telephoto zoom lens. The update improves AF speed in all cases, but it also improves functionality when mounted via MC-11 SA-E adapter. According to Sigma, focusing features are enhanced in the adapter-mounted lens, and the optical stabilization system becomes operational more quickly.

All firmware can be downloaded for free from Sigma’s download page, or through the Sigma USB dock. To update the MC-11 mount converter, simply plug it in to your PC and run the SIGMA Optimization Pro app.

Articles: Digital Photography Review (dpreview.com)

 
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Pricing for Sigma 14mm F1.8 DG HSM and 24-70 F2.8 DG OS HSM Art lenses announced, undercuts the competition

24 Jun

Announced in February, two highly anticipated full-frame lenses from Sigma are finally on their way to consumers. Sigma has also announced pricing – the 14mm F1.8 DG HSM will cost $ 1600; the 24-70mm F2.8 Art will cost $ 1300. In both cases, that’s well below the current asking prices for Canon and Nikon versions of similar lenses.

Sigma says the 14mm in Canon and Sigma mount will ship this month, and the Nikon version will be available in July. The 24-70mm will ship for all three mounts this month. Considering there’s not much time left in June, that’s basically now.

Press release

Sigma Begins Shipping Its 14mm F1.8 DG HSM and 24-70mm F2.8 DG OS HSM Art Lenses

The world’s first and only F1.8 ultra wide-angle full-frame lens for DSLR cameras is available now for $ 1,599.00 USD; the new Sigma Global Vision workhorse zoom lens is available now for $ 1,299.00 USD

Ronkonkoma, NY – June 22, 2017 – Sigma Corporation of America, a leading still photo and cinema lens, camera, flash and accessory manufacturer, announced today the pricing and availability for its new Sigma 14mm F1.8 DG HSM and Sigma 24-70mm F2.8 DG OS HSM Art lenses from its lauded Global Vision line. The ultra-wide angle full-frame 14mm F1.8 Art lens begins shipping in June 2017 for Canon and Sigma camera systems and in July 2017 for Nikon camera systems, for a retail price of $ 1,599.00 USD. The standard zoom full-frame 24-70mm F2.8 Art lens begins shipping in June 2017 for a retail price of $ 1,299 USD.

The Sigma 14mm F1.8 Art, which is the first and only F1.8 ultra wide-angle lens among interchangeable lenses for digital SLRs*, incorporates the same aspherical element as Sigma’s critically acclaimed 12-24mm F4 Art, allowing the lens to deliver a new dimension of visual experience. Boasting outstanding image quality from center to edge, the 14mm F1.8 Art features an 80mm front lens — the world’s largest glass aspherical lens in the industry, offering photographers an ultra-wide prime with virtually no distortion, flare or ghosting. Equipped with a superfast and efficient autofocus system, three FLD (“F” Low Dispersion) elements, and four SLD (Special Low Dispersion) elements to reduce chromatic aberration and coma flare, the 14mm F1.8 Art is suitable for a wide range of photographic needs including astrophotography, architecture and landscape photography.

The 24-70mm F2.8 Art lens, Sigma’s new workhorse standard zoom lens, touts a brand new Optical Stabilizer (OS), Hypersonic Motor (HSM) for highly efficient and fast autofocus, as well as a dust- and splash-proof mount with rubber sealing. The 24-70mm F2.8 Art lens embodies all the technical qualities and finesse that define the high-performance Sigma Global Vision Art series. A popular industry focal range covering a wide array of shooting scenarios, the 24-70mm’s optical design also includes three SLD (Special Low Dispersion) glass elements and four aspherical elements to ensure image accuracy and sharpness. The 24-70mm F2.8 Art aspherical elements use Sigma’s thicker center glass design and highly precise polishing process, delivering stunning images and bokeh effects. The lens’ purpose-built structure boasts a new metal barrel for optimal durability with TSC composite internal moving components designed to resist thermal contraction and expansion.

Both the 14mm F1.8 DG HSM and the 24-70mm F2.8 DG OS HSM Art lenses are available in Canon, Nikon and Sigma mounts. The Sigma and Canon mount lenses work with Sigma’s MC-11 Sony E-mount converter. The Nikon mounts feature the brand new electromagnetic diaphragm.

Sigma 14mm F1.8 DG HSM Art Lens Features and Benefits:

> Sharp, rich image quality

  • Minimized chromatic aberrations: Three FLD (“F” Low Dispersion) glass elements and four SLD (Super Low Dispersion) glass elements help reduce transverse chromatic aberration, which tends to be noticeable in shots taken with ultra wide-angle lenses. The result is outstanding image quality from the center of the image to the edges.
  • Distinctive bokeh effect: Even at the 14mm ultra wide-angle of view, F1.8 brightness makes possible a very shallow depth of field with the subject standing out dramatically against a pleasingly softened background. It’s the unique mode of expression that only a large-diameter lens can deliver.
  • Minimized distortion: Serving as the front lens element, the large 80mm precision-molded glass aspherical lens effectively minimizes distortion. Offering excellent peripheral brightness, this lens delivers outstanding image quality from the center to the edges.

> Offers full-frame coverage

Sigma 24-70mm F2.8 DG HSM OS Art Lens Features and Benefits:

> Superior optical performance

  • Optimal image quality for ultra-high-megapixel DSLRs: This lens offers top performance from the center to the edges of the image thanks to the optical system minimizing coma, which causes points of light to streak, and transverse chromatic aberration, which cannot be corrected via aperture control. The optical system also minimizes distortion, which can be particularly evident in wide-angle shots, resulting in excellent optical performance throughout the zoom range.
  • Expressive bokeh effect every time: At wide-open aperture, this lens offers outstanding photographic expression. The area in focus is extremely sharp, while the background exhibits a beautiful, creamy bokeh effect with only slight spherical aberration. Since large-diameter zoom lenses are often used at wide-open aperture, Sigma has paid close attention to the shape of the bokeh, aiming for artistic circularity.
  • Aspherical Lens Processing Technology: The Sigma 24-70mm F2.8 DG OS HSM Art incorporates an aspherical lens element that helps achieve extremely high resolution. This element is much thicker at the center than the edges, and forming its unusual shape is a feat of manufacturing technology. Moreover, Sigma processes the surface of this aspherical lens element with ultra-precise tolerances that are measured in hundredths of a micrometer. This extremely fine surface allows the Sigma 24-70mm F2.8 DG OS HSM Art to deliver a very natural and smooth bokeh effect, without the visible concentric rings that afflict typical aspherical lens elements.

> Fast and nimble autofocus photography

  • Designed for advanced utility in a wide variety of situations, the optical stabilizer (OS) offers a powerful stabilization effect. The newly designed large hypersonic motor (HSM) offers 1.3 times the torque of its predecessor for exceptionally stable performance.

Sigma Global Vision Line Features & Benefits:

  • Each lens is eligible for user customizable micro-focus and in-home firmware updates with the optional USB Dock and Sigma Optimization Pro software.
  • Each unit is crafted in Aizu, Japan and individually tested for QC and optical performance with the exclusive A1 MTF device.
  • Sigma’s Exclusive Mount Conversion Service allows lenses to be switched between any released mounts (fee-based).
  • Compatible with Sigma Mount Converter MC-11, allowing use of Sigma lenses in Sigma and Canon mounts with the Sony E-mount camera systems.

*As of February 2017

Articles: Digital Photography Review (dpreview.com)

 
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Quick Review of the Sigma 135mm F1.8 DG HSM Art Lens

22 Jun

In this quick review of the Sigma 135mm f1.8 Art Lens, I will go over some of its features and give you my overall impression of this lens.

Photographers like gear

I belong to several photography groups, both online as well as within my local area, and often times when we meet, we end up talking about our gear. Conversations typically revolve around the gear we have, what we would like to have, and what we want to sell off. On several occasions, I have heard my fellow photographers talk about the Sigma Art series of lenses. They always start the conversation with, “Oh, I absolutely love my Sigma Art lens. The bokeh is so dreamy!” Now, I am a Canon shooter – always have been and always will be. But that does not mean that every once in a while, I don’t like to test out gear from other companies to compare performance, specifications, and price.

Quick Review of the Sigma 135mm F1.8 DG HSM Art Lens

The Sigma 135mm F1.8 DG HSM Art Lens comes with a case and a lens hood.

So when I had the opportunity to test out the Sigma 135mm 1.8 DG HSM Art lens, I jumped at the chance. I spent about three weeks with this lens and used it for a variety of photography assignments – both indoors and outdoors. Here is my review based on my personal experiences with this lens.

Technical Specifications

As per Sigma’s website, the Sigma 135mm F1.8 DG HSM Art is a medium range telephoto prime lens designed for modern high-megapixel DSLRs. A new large Hyper Sonic Motor (HSM) delivers ample torque to the focusing group for outstanding speed, ensuring exceptionally stable performance even at lower speeds. This state-of-the-art prime lens touts a dust and splash proof mount for guaranteed performance in any condition and its large 1.8 aperture allows for more creative control over imagery.

Quick Review of the Sigma 135mm F1.8 DG HSM Art Lens

The Sigma 135mm F1.8 DG HSM Art Lens attached to my Canon 1V film camera.

My telephoto lens of choice is my Canon EF 70-200L lens. It’s heavy and bulky but gives me some of the best picture quality in its class. Compared to that lens, the 135mm felt lightweight and comfortable to carry around all day. Being a fixed lens, there are no moving parts, unlike the zoom ring on the 70-200mm. While this meant that I had to move around to get shots at various distances, it was not an inconvenience. I just used pretended to have a zoom lens by moving my feet!

The lens looks very sharp and clean. The smooth matte black finish of the lens gives it a certain visual appeal. The build quality is very clean and it feels like a solid piece of glass. The lens is a little heavy (at about 2.56 pounds or 1.2 kg) but if you are used to walking around with other telephoto lenses, it’s not any different compared to using those.

Sharpness of the Sigma 135mm F1.8 Art Lens

The legendary quality of having the dreamiest bokeh is very true with this lens. It is super sharp even when shooting absolutely wide open. I typically shoot very wide opened with all my Canon L-lenses which fits my style of photography. The aperture of f/2.0 is my personal sweet spot – the one that I really trust to give me a shallow depth of field and dreamy bokeh (blurry background). This lens did not disappoint at my favorite f-stop.

But even at f/1.8 (the widest aperture on the Sigma 135mm), the lens was tack sharp with very shallow depth of field. Once it was stopped down to f/16, there was some softness on the edges of the frame but it’s not very prominent. With a lens of this quality, the best aperture would be between f/1.8 to f/4 (in my opinion) to get the best of the shallow depth of field and bokeh that we all love.

Quick Review of the Sigma 135mm F1.8 DG HSM Art Lens

Shot at ISO 200, f/1.8 – wide open – look at that dreamy bokeh.

Quick Review of the Sigma 135mm F1.8 DG HSM Art Lens

ISO 200 at f/2.0

Quick Review of the Sigma 135mm F1.8 DG HSM Art Lens

ISO 200 at f/9 – more of the entire scene is clear and visible – with a wider (deeper) depth of field here.

Vignetting

The Sigma 135mm at f/1.8 Art Lens showed slight edge vignetting when shot wide open. But for my style of photography, it’s minimal and nothing I could not fix in post-processing. I was very impressed with the number of tack sharp images that I could keep even when I used the lens completely wide open at f/1.8.

Quick Review of the Sigma 135mm F1.8 DG HSM Art Lens

The image above left was shot at ISO 200, f/2.0 and on the right, the same scene was shot at ISO 200, f/9. There is no visible softness or vignetting at either aperture. The bokeh at f/2.0 is so dreamy (shallow depth of field) and at f/9 more of the background is visible.

Autofocus

The Sigma 135mm has an electronic hypersonic motor. This makes the autofocus very fast and smooth. I found that the lens locked focus easily and did not hunt while focusing. The AF motor was also relatively quiet and smooth as compared to other telephoto lenses like the Canon 85mm f/1.2L II USM that is really slow while hunting for focus in the AF mode.

Quick Review of the Sigma 135mm F1.8 DG HSM Art Lens

While hiking my two boys decided they would lead the pack. I really wanted to capture this independent streak and both images are shot less than 2 seconds apart. The Sigma 135mm had no problems tracking focus as they moved up the trail. Both images were shot at ISO 200, f/2.0 and both have the subjects tack sharp and in focus in spite of the movement.

Macro capabilities

While the Sigma 135mm is not described as a macro lens, it did offer 0.2x magnification with a minimum focusing distance of just under three feet. Since I have a dedicated macro lens that I use for my detail shots, I did not pay much attention to this feature. However, in a pinch, this lens could be used to provide some magnification.

Karthika Gupta Memorable Jaunts DPS Article - Sigma 135mm lens review-11

The 135mm zoom was a little tight when I had to take in-studio headshots but once I got the focus locked, it turned out beautifully. Both images were shot at f/2.0 ISO 640, 1/125th.

Summary

Overall I was really very impressed with the Sigma 135mm 1.8 DG HSM Art lens. It is a superbly built piece of gear that was incredibly fast, easy to carry, handle, and use.

The only thing I needed to get used to was the fact that it was a prime lens and not a zoom, unlike my favorite 70-200mm telephoto lens. This meant I had to move around to get shots at different angles and different focal lengths, but I don’t consider that a con. Instead, I feel that shooting with a prime lens makes you more careful and thoughtful about your compositions since you have to physically move around to get a diverse range of shots.

The Sigma 135mm lens is definitely something to look into if you are in the market for a good quality telephoto lens.

The post Quick Review of the Sigma 135mm F1.8 DG HSM Art Lens by Karthika Gupta appeared first on Digital Photography School.


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