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March 12, 2014
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Posted in Reviews

Sigma 18-35mm f/1.8 DC HSM Video Review

Tony Northrup reviewed the awesome Sigma 18-35mm f/1.8 lens (using a Canon EOS 70D). The video review lasts 23 minutes and comes with lots of comparisons with other lens, sharpness tests and more. If you are on the fence for this phenomenal lens, then the video may deliver the answers you are looking for.

If you want to get an idea how well the Sigma performs, have a look at our coverage of the lens.

The Canon EOS 70D is currently discounted at B&H (up to $200 for the kits). Sigma 18-35mm f/1.8 DC HSM price check: Amazon, B&H, Adorama, Canon USA, J&R, Digitalrev, Borrow Lenses, eBay

Pics and specs after the break.

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February 25, 2014
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Posted in Reviews

Sigma 18-35mm f/1.8 DC HSM Review (Photography Bay)

Sigma 18-35mm f/1.8
Sigma 18-35mm f/1.8 DC HSM: Amazon, B&H, Adorama, Canon USA, J&R, Digitalrev, Borrow Lenses, eBay

Photography Bay reviewed the awesome Sigma 18-35mm f/1.8 DC HSM lens for APS-C DSLRs, one of Sigma’s recent gems. This lens gets one positive review after the other, and that’s not surprising: Sigma made an outstanding lens, and it has a constant f/1.8 over the zoom range. Considering the price of the Sigma ($799) this is for sure one of the most interesting lenses you can get for your Canon APS-C DSLR.

Sample pics and more after the break.

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January 28, 2014
Posted in Reviews

Canon EF 17-40mm f/4L DxOMarked (and compared to other lenses)

EF 17-40mm f/4L

DxOMark tested the Canon EF 17-40mm f/4L lens (price & specs), a well-known work-horse for lots of photographers, and one of the less expensive “L” lenses. More after the break.

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October 29, 2013
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Posted in Reviews

Sigma 18-35mm f/1.8 DC HSM Video-Review (DigitalRev)

A 9 minutes video-review of the awesome Sigma 18-35mm f/1.8 lens. Enjoy! :-)

Sigma 18-35mm f/1.8 DC HSM price check: Amazon, B&H, Adorama, Canon USA, J&R, Digitalrev, Borrow Lenses, eBay

October 10, 2013
Posted in Reviews

Canon EOS 70D Sample Shots with Sigma 18-35mm f/1.8 (and other Canon lenses)

EOS 70D Sample Shots

dc.watch.impress (translated) posted a set of samples shot with the Canon EOS 70D and various lenses, among them the awesome Sigma 18-35mm f/1.8 DC HSM (price & specs). The other lenses are the EF-S 10-22mm f/3.5-4.5 (price & specs), the EF 8-15mm f4L Fisheye (price & specs), and the EF 70-200 f/4L IS (price & specs). I was particularly curious to see the performance of the Sigma 18-35mm with the 70D – not bad at all! :)

EOS 70D Sample ShotsEOS 70D Sample Shots

 

August 7, 2013
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Posted in News

Interview With Optical Engineer That Made the Sigma 35mm f/1.4 and 18-35mm f/1.8 Lenses

35mm Comparison

Sigma 35mm f1.4 DG
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Thanks Mark. lenstip published a long interview with the optical engineer that designed the outstanding Sigma 35mm f/1.4 DG HSM (price & specs) and Sigma 18-35mm f/1.8 DC HSM (price & specs) lenses. The interview comes with lots of b&w images that appear to represent Sigma’s laboratories. Some excerpts from the interview:

Q:What is more important today: intuition and experience or an access to new software and fast computers
A: We think that both are important. Although it is necessary to use machines perfectly, we cannot come up with creative ideas if we rely too much on technologies. Sometimes it is necessary to advance it with own judgment while considering about the purpose and results at all times.

[...]

Q:At what point do you start thinking about the usage of antireflection coatings? Does an optics specialist think of them already at the beginning of their work or do they just optimize the final product according to the elements used in the construction or their refraction coefficient?
A: We start thinking about the usage of antireflection coatings from the middle stage of the design.

[...]

Q:In the case of such a unique construction as the Sigma 18-35 mm f/1.8 which parameter was set as the first? The focal range? The aperture? Or perhaps the image quality was the main priority and you adjusted the rest of parameters accordingly?
A: The project had started with a lens incorporating a maximum aperture of F1.8 and 2x zoom-ratio lens with a focal length equivalent to 50mm in a 35mm format. After some speculation, we decided to produce the 18-35mm f/1.8 lens because it seemed to be able to achieve the highest performance with this spec.

 

Sigma 18-35mm f/1.8 DC HSM
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