Sigma 19mm F2.8 EX DN-Sony E 440965

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Price: $199.00 $163.76   

Product Feature

• Sony E Mount
• Double-sided aspherical lens
• 28.5mm equivalent focal length
• Linear AF Motor to ensure accurate and quiet autofocusing

Product Description

19mm F2.8 EX DN

Sigma 19mm F2.8 EX DN-Sony E 440965 Review

"There are NO BETTER LENS for $199". This lens is an absolute winner!
- Edge to Edge Sharpness that match my $1200 Canon 17-55 f/2.8 IS USM for less
- Ultra Fast AF speed even on 2yrs old Panasonic GF2
- AF is completely "SILENT" for video shoot
- Practical focal length: 19mm = 38mm FF, same as your average point/shoot
- Short (20cm) Minimum Focus Distance for great close-up
- Amazing Bokeh (see bottom)
- Amazing PRICE (I'm constantly pinching myself this performance for $199?)

>> Beautiful Bokeh <<

While "bokeh" taste maybe subjective, most would agreed upon that (1) Big-Round shaped bokeh highlight is more pleasant than Elliptical-shaped-Cat's-Eyes highlight, and that (2) Smooth + Soft color transition is better than Harsh-Edge lines. Sigma 19mm delivers on both counts.

>> 38mm is Great Focal Length, much like Canon 24-105L on Rebel <<

Sigma 19mm = 38mm on Micro4/3 format, which is the same focal length as your typical POINT/SHOOT: (1) wide enough to cover wide landscape, and (2) tight enough so people in your photograph aren't dwarfed by the surroundings. Coincidentally, Sigma 19mm has the same Field of View as a Canon EF 24-105L on Rebel T1i, T2i, T3i, T4i: [ 24mm x 1.6 CropFactor = 38.4mm ]. If you love 24-105L on canon rebel dslr, you're love Sigma 19mm on Micro43.

>> Process of Elimination <<

- Olympus 17mm - great price and usual focal length, but lens softness, CA, and AF NOISE kills it

- Panasonic 14mm f/2.5 - Compact size, but poor corner softness + severe vignette in the corners. Search cameralabs review, 14-42mm kit lens is actually much sharper, less vignetting, and have image stabilization

- Panasonic 20mm f/1.7 - I WANT ONE, but I didn't want to pay nearly $400 for one. That money would be better spend on an Olympus 45mm or Panny Leica 25mm f/1.4

- Sigma 30mm f/2.8 DN - Weird Focal Length of (60mm) on Micro43. Not wide enough for landscape or walk-about prime, but good for portrait. The problem is that it competes directly against the fabulous Olympus 45mm f/1.8. Great focal length on APS-C Sony NEX, but not so good on Micro4/3

>> 1 second Startup Delay is normal <<

Sigma DN (Digital Nero) lens uses [ stepper motor ] to achieve its ultra-quietness. Stepper motor are famous for its precise motion controlled positioning, but it requires time to INDEXING to generate step pulses (read wikipedia for details). I just want to report that its NORMAL.

My Panasonic GF2 required 2 seconds to index. Faster camera can probably yield faster startup. Older camera will probably take 2-4 seconds indexing. Your satisfactions with Sigma DN lens are highly depended on your camera body.

>> Negatives <<

Flare / Glare control isn't up to my usual Tamron standards. Tamron (Di) lens are "double anti-reflection coated" on both inner and outer lens element. This minimized "internal reflection" when shooting at a light source (lamp lights)

Sigma 19mm isn't double coated, and will produced a [greenish] glare/flare shooting indoor in family room directly in front of a lamp. Switch to my Tamron 17-50 f/2.8 VC Di on my Canon DSLR, and I get no glare. Switch back to my Sigma 19 on GF2, and I can reproduce the glare easily....with or without UV filter.

>> LensRental Imatest Results <<

LensRental just published a IMA Test result on short medium prime for micro43 here(//bit.ly/KEfLqE). Let me summarized for you: (Center/Corner)
- 900 center / 790 corner - Olympus 45mm at f/2.8
- 850 center / 745 corner - Sigma 19mm @f/2.8
- 825 center / 690 corner - Sigma 30mm @f/2.8
- 720 center / 615 corner - Olympus 45mm at f/1.8

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