Buy Sigma 30mm f1.4 DC HSM Lens (Canon)Sigma 30mm f1.4 DC HSM Lens (Canon) Product Description:
- Offering the bright F1.4 aperture and an angle of view extremely close to that of human vision
- Placed under the Art category, this large-aperture standard lens with an angle of view equivalent to 45mm on a 35mm camera
- A rear focus system prevents focus-dependent variation in aberration, making high-level image quality possible throughout the entire image
Product Description
30mm F1.4 DC HSM (Canon)
Customer Reviews
Most helpful customer reviews
16 of 17 people found the following review helpful.
Excellent low light normal lens for Canon APS-C cameras - but it can have focus issues
By JB
This Sigma 30mm f1.4 DC HSM | Art lens has been designed for APS-C or "crop" cameras such as the Canon Rebel series, 60D, and 7D. It is a 30mm lens, which when used on a crop camera gives the same effective field of view as a full frame lens of 48mm - considered a "normal" lens as it is not wide angle or telephoto. So this lens could be considered the crop camera equivalent of the full frame Sigma 50mm f/1.4 EX DG HSM Lens for Canon or Canon EF 50mm f/1.4 USM Standard & Medium Telephoto Lens for Canon . And in my use of it so far I think that it is excellent lens for crop cameras.I was able to use this lens to take some indoor pictures using a single light bulb as illumination - and I've attempted to post the results here. I try to use a flash indoors when it makes sense, but sometimes you need to turn the flash off and use natural light, and the f1.4 maximum aperture of this lens allows you to do so. The resulting photos were sharp and contrasty. Bohek also looks quite good when shooting at f/1.4 (see example photo).One advantage of having this lens designed specifically for APS-C is it is much smaller, lighter, and less expensive than full frame lenses of this focal length and aperture such as the Sigma 340101 35mm F1.4 DG HSM Lens for Canon and the Canon EF 35mm f/1.4L USM Wide Angle Lens for Canon . Other pluses is the solid metal and plastic construction, and the supplied accessories (lens hood and protective case).As for negatives - unsurprisingly the focusing is not as fast as many of Canon's USM lenses. It's focus speed is similar to other Sigma HSM lenses like the 50mm EX DG or the old 30mm EX DC; but it is definitely slower than my Canon 10-22, 85 1.8, and 135L. Second, I noticed that the focal length changes slightly while focusing; infinity focus shows a slightly wider angle than when focused close to the MFD. That said, neither of these items is significant enough to downgrade the lens. I'm also a bit worried about focus issues, more due to Sigma's history than anything I've found yet about this lens. There is also noticeable Longitudinal Chromatic Aberrations (LoCAs) when shooting with bright highlights at f/1.4; however this is an issue with fast lenses in general, not just this lens.In sum, I'm very happy with the new Sigma 30mm f1.4 DC | Art lens. It's a great value when judged against comparable full frame offerings from Canon and Sigma, and allows a lot of natural light photographs that might not work with a slower lens.Note: in some cases the previous Sigma 30mm f/1.4 EX DC HSM Lens for Canon is still available at a significant discount to this lens. Is the new Art lens worth the extra money? Published MTF charts from Sigma and early reviews (Lenstip) suggest that the new Art version is noticeably sharper, esp. in the edges and corners of the frame. I look forward to more detailed test results, but so far I have no regrets moving up to the Art version. There is also the Sigma 35mm f/1.4 noted above, which is a world-class full frame lens and has better IQ than the 30mm - but is also twice as big, almost twice as expensive, and not quite as wide as the 30mm.***EDIT 04-22-13: After more testing I was able to confirm that the lens was front focusing on distant objects. I took a picture of a neighboring roof using LiveView, and the result shows the roof peak in focus as expected. But taking the same shot from the same spot with standard autofocus shows the roof slightly out of focus; the lens focus scale also shows the lens front focusing compared to when using LiveView. After a short trip to Sigma to get the lens calibrated, it now appears that the lens is focusing accurately. I'll now reconfirm that this is a great lens for crop sensor cameras, but I'm still disappointed that Sigma QC seems to allow these slightly miscalibrated lenses to ship.
3 of 3 people found the following review helpful.Super sharp lens and great build quality
By SSSS
I could see quality in this lens when I opened the box. On using it the first time, I noticed its sharpness right from 1.4. The edge sharpness was also very good wide open. Stopping down, it gets even better. Not sure why they decided to not use SLD and ELD glasses. This is a bit of a disappointment. They could have improved this lens even further and perhaps made it even more compact. It is a lot smaller than the FF 35mm version though. Considering the price, this is good buy. For indoor shots and low light, it is great. It does its job very well and is affordable.
3 of 3 people found the following review helpful.Good First Impressions
By Natural Mystic
By way of background; I am very much a novice when it comes to photography, but want to make it a serious hobby. Since I'm new to this type of high aperture lens, I am still trying to figure out the right f stop and ISO settings for various conditions. So please take my image quality impressions for what it's worth. I have owned my 60D for about two years and have been using the Canon 18-200 lens exclusively. This purchase is a result of an instructor's recommendation during one-day DSLR class and a LOT of internet research.My first impression of this lens is very high quality based on the materials and general look. I am very surprised how small the actual glass is considering this lens is designed to take in a lot of light. The first time i used it, I thought it didn't work because the focus ring didn't move and there was no motor noise. I later realized the focusing is silent and the ring doesn't move when focusing. This is a noticeable difference when comparing it to the Canon 18-200.So far, my close up outdoor shots look amazing (subject is about 1 to 5 feet away). You would think a professional took them! The focused subject is extremely sharp and the background is blurred perfectly - almost has a 3D look to it. All pictures were taken between 1.4 and 3.0 f stops.However, my indoor shots, especially with lower lighting are not so good. They are either out of focus or too dark. Further, when I focus on a distant object inside or outside, the picture doesn't seem very sharp So far, I am attributing these problems to user inexperience - anyone have advice here? At my daughter's birthday party today, I actually switched over to my reliable 18-200 to insure that I'd have good pictures. This also made me realize how much more real estate the 18mm gave me in tighter spaces. After downloading today's pictures to iPhoto it turns out most of the Sigma pictures came out good - looks like I'm starting to figure it out by day 10. I think this part will just take a little more time to perfect these indoor shots.
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