Sigma Art 30mm F28 Dn Black Lens for Micro Four Thirds Mount Review

Introduction

The Sigma 30mm f/2.eight EX DN is a new affordable standard prime lens for Micro Four Thirds and Sony NEX compact organization cameras. It offers the equivalent angle of view as a 60mm lens on the Micro Four Thirds arrangement and 45mm on the Eastward-mount sytem. The Sigma 30mm f/2.8 EX DN features a rounded 7 blade diaphragm which creates an attractive mistiness to the out of focus areas of the image. It has a minimum focusing distance of 30cm /11.8in and a maximum reproduction ratio of 1:8.1. A linear AF motor moves the lens units direct without the need for gears or the drive of other mechanical parts. The Sigma 30mm f/2.8 EX DN lens is currently bachelor for £169.99 / $280 in the United kingdom of great britain and northern ireland and the United states of america, respectively.

Ease of Apply

The Sigma 30mm f/2.eight EX DN lens

Weighing in at a mere 135 grams, the plastic-bodied Sigma 30mm f/ii.8 EX DN is very lightweight. It's smaller than the 19mm lens that Sigma launched at the same time. As seen in the photos below, it complements a mid-sized Micro Iv Thirds camera like the Olympus E-PL1 very well and also doesn't look out of place on an even smaller camera like the Panasonic Lumix DMC-GF3.

The Sigma 30mm f/2.8 EX DN lens mounted on an Olympus E-PL1

The Sigma 30mm f/2.8 EX DN lens mounted on an Olympus E-PL1

The Sigma 30mm f/2.8 EX DN lens mounted on an Olympus E-PL1

The Sigma 30mm f/2.viii EX DN lens alongside an Olympus Due east-PL1

Build quality is pretty decent for what is a consumer lens. Nigh of the outer parts are plastic - contributing to the calorie-free weight of the lens - but the optical elements are made of loftier-grade glass. The focus ring is quite wide and ridged.

Front end of the Sigma 30mm f/2.eight EX DN lens

In terms of features, the Sigma 30mm f/two.eight EX DN offers all the basics that you need from a prime lens. The main exception is the lack of built-in Vibration Reduction, although the fast maximum discontinuity of f/2.8 makes up for this to some extent.

Front of the Sigma 30mm f/2.8 EX DN lens, isometric view

Focusing is usefully internal and transmission focusing is possible when set on the specific camera body. The Sigma 30mm f/2.8 EX DN lens may have a lot of plastic parts, but the lens mount is, thankfully, made of metallic.

Rear of the Sigma 30mm f/2.8 EX DN lens

Surprisingly given its cost, the Sigma 30mm f/ii.8 EX DN ships with a good quality soft case only sadly no lens hood. It accepts 46mm filters.

Rear of the Sigma 30mm f/2.viii EX DN lens

Focal Range

At the 30mm focal length the angle of view is 39.6 degrees for Micro 4 Thirds cameras and 50.7 degrees for Sony E-Mount.

Field of view at 30mm

Focusing

The Sigma 30mm f/ii.8 EX DN lens has quite a wide focus ring. In that location are no difficult stops at both ends of the range, making it a picayune more than difficult to set focus at infinity. Polariser users should be pleased that the 46mm filter thread doesn't rotate on focus.

When it comes to auto-focusing, the Sigma 30mm f/2.eight EX DN zoom is a quick performer, taking about 0.ii seconds to lock onto the subject when mounted on the Panasonic Lumix DMC-GF3 that nosotros tested it with.

We didn't experience much "hunting", either in proficient or bad light, with the lens accurately focusing near all of the time. It's also a quiet performer, thanks to the newly adult linear AF motor which makes this lens well-suited to video recording.

Chromatic Aberrations

Chromatic aberrations, typically seen equally purple or blue fringes along contrasty edges, can exist detected in some shots simply they are not very prominent at all.

Light Autumn-off

With the lens set to its maximum discontinuity, there is a scrap of lite fall-off in the extreme corners, but it won't really affect your real-globe shots.

Light fall-off

Macro

The Sigma 30mm f/2.8 EX DN isn't claimed to be a macro lens, but it delivers a pretty skilful performance nevertheless. It has a minimum focusing altitude of 30cm/11.8in and a maximum magnification ratio of 1:8.ane. The following example demonstrates how shut you can go to your discipline, in this case a Compact Flash memory card.

Close-up performance

Bokeh

Bokeh is a discussion used for the out-of-focus areas of a photograph, and is usually described in qualitative terms, such as smooth / creamy / harsh etc. In the Sigma 30mm f/2.8 EX DN lens, Sigma employed an iris diaphragm with seven rounded blades, which has resulted in nice bokeh in our view. We practise realise, yet, that bokeh evaluation is subjective; so nosotros've included several 100% crops for your perusal.

Sharpness

In gild to show you how sharp this lens is, we are providing 100% crops on the following pages.

1. Ease
   of Use
2. Sharpness:
   one
3. Sample
   Images
4. Lens
   Specs
5. Rating &
   Conclusion
6. Review
   Roundup

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Source: https://www.photographyblog.com/reviews/sigma_30mm_f_2_8_ex_dn_review

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