The bottom line is that the f/1.8 aperture enables a more-strongly blurred background than that f/2.8 zoom alternative you were considering (identical focal lengths compared). You may be surprised at how in-focus-appearing the background appears at 18mm f/1.8 in a 650px high size-reduced image. The image below shows a 35mm f/1.8 example focused at approximately 6' (1.8m).Ĭlick on the image to see a complete 18mm and 35mm aperture comparison. Shallow depth of field can mean that the subject pops from a blurred background.īlurring the background is of course easiest at longer focal lengths – and 35mm is not a very long focal length. Wide apertures mean shallow depth of field. (and what does "Contemporary" mean for a lens designation? Will it still be contemporary in 10 years? Are the "A" and "S" lenses not just as contemporary?).Īnd I'm sure that the wide "A"perture is largely responsible for this classification. While I'm loving what Sigma is doing with their lenses right now, I'm not yet a fan of limiting the usefulness of a lens to one of these categories Global Vision lenses receive designations of "A" for Art, "C" for Contemporary or "S" for Sports. The Sigma 18-35mm f/1.8 DC HSM Art Lens is one of the first members of Sigma's Global Vision Lens lineup. (very overcast to eliminate hotspots with some rain to drive away other visitors – and add saturation),Ī sweet loaner car (my car was in the shop) and this lens needing a workout provided far more motivation than I needed to schedule a day trip toįrom this location comes this review's focal length range examples. While landscape photography does not so-frequently need the f/1.8 aperture advantage this lens holds, the right weather conditions This range need being offset by the low light and background blurring capabilities made possible by the f/1.8 max aperture.īeing long on the wide end and short on the long end, 18-35mm still works well for many landscape photography uses. That this lens does not meet my minimal focal length range desires for a general purpose lens is going to be overlooked by most – The Sigma 18-35mm f/1.8 DC HSM Art Lens' focal length range covers only a subset of my recommended range – equating to a 28.8-56mm angle of view on a full frame camera. My APS-C format general purpose lens minimum focal length range recommendation is 18-45mm, which relates to 28.8-72mm in full frame format. The "DC" ("Digital Camera") in the name means that this lens is compatible only with ASP-C/1.6x FOVCF sensor format DSLR cameras. You need the focal length that is going to allow proper framing and proper perspective for your subjects. Let's start the review with a look at the focal length range as that is one of my primary criteria for lens selection. The downsides? A relatively short focal length range and lack of image stabilization are the only ones on my list. Just because a lens has a specific max aperture does not mean that you will want to use that aperture, but this lens rocks at f/1.8.Ĭombine excellent wide open image quality with a great looking, great performing and modest fixed-sized package along with a good price and you have a lens that is going to find a home in MANY kits. The f/1.8 max aperture, available over the entire focal length range, puts this zoom lens on a shelf by itself. In fact, f/1.8 is 1 1/3 stops wider/faster than the next-widest/fastest f/2.8 zoom lens crowd – allowing more than twice as much light to reach the camera sensor than the tied-for-second place lenses. The primary reason for that awesomeness is the not-seen-in-any-other-zoom-lens f/1.8 aperture. The word "groundbreaking" seems inadequate for describing the awesomeness of the Sigma 18-35mm f/1.8 DC HSM Art Lens. Expired: Ending Today: 20% Off Refurbished Lenses (After Instant Savings) at Canon USA.In Today's B&H Deal Zone: Tokina atx-i 11-20mm f/2.8 CF Lens, Lexar 256GB 1066x CompactFlash, Lowepro m-Trekker BP150 Backpack, SmallRig.Just Posted: Alpine Astro Baader AstroSolar BDSF 3.8 Digital Solar Filter Review.In Today's B&H Deal Zone: Platypod Platyball Ergo Ball Head – Only $189.00 (Save $110.00), More.Sony EDU Deals at B&H – Save 15% on Select Cameras and Lenses.In Today's B&H Deal Zone: Apple 14.2" MacBook Pro with M1 Max Chip – Only $2,499.00 (Save $1,600.00), Benro, Manfrotto, More.Updated: Sony EDU Deals at B&H – Save 15% on Select Cameras and Lenses.
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