Sigma 30 mm F1.4 DC DN for M4/3

I've attached a couple of unretouched, straight-from-the-camera examples that hopefully show the sharpness and bokeh of this lens, in low and bright light. What's great about the Sigma 30mm f/1.4? Firstly it's sharp and bright! I was able to get pin-sharp results handheld at night with just a table lamp in the room. Secondly, it feels like quality; with nice weight in the hand and is reassuringly solid to the touch. The focus ring turns like butter: perfect. Value for money, this is a no-brainer: the Sigma lens is easily as good or better than more expensive alternatives. My only possible question about this lens is the bokeh, which I'm still trying to make up my mind about. Purely subjective of course but is it a bit busy in bright light? Overall, this is a definite "buy" if you are looking for a very good quality lens with a bright aperture and don't want to spend a mint.

I have recently switched to Micro Four Thirds from Four Thirds, and this lens has been the best thing about the move. Lives pretty much full-time on my Olympus OM-D EM10 Mk II (a great camera of itself). When I bought that I also got the Olympus 25mm f1.8.....an excellent lens in its own right, if there's a difference between that and the Sigma it's in the latter's colour rendering (I like full, rich colour and the Sigma deivers that in spades, maybe a little saturated for some tastes). And images are pin-sharp 9.5 times out of ten.The Sigma is a much bulkier lens than the Oly, but on the EM10 it adds substance to the overall look and feel of the camera in use. On the EM-5II it looks pretty standard, and is equally a joy to use.The advisory......reading about this lens online brings up references to a tendency to focus-hunt, even stopped down and in good light.....have to say I have seen this on the EM10 and it can be distracting. I will check it out on the EM5 as well. What appears to eliminate it is to set the camera to S-AF/MF, though I will monitor this aspect of performance. I can see that for some it would be a deal-breaker - it isn't for me as the all round optical performance is that good, and I'm finding 30mm a better focal length to work with than 25mm for everyday, carry-around use (though in a bag rather than a pocket given the size of the lens). On Olympus cameras the lens firmware is updated with the lens in-situ, and I'm using the most recent version. It's not a consistent issue, but it is a noticeable one, and hopefully there is a fix somewhere down the pipeline. I'm looking forward to the 16mm f1.4 version of this lens, and it would be a shame if that were similarly afflicted.But if you have an m43 camera, this is a lens you really must have. The focus issue is the only slight downside....in every other respect this is a lens you are likely to become seriously attached to. Go and enjoy.

I bought this for a Lumix G9 and it takes superb pictures, it is just so sharp. The G9 doesn't have great focus but this lens still manages to focus well and you will end end with super sharp images.The build quality is just superb, it is a bit heavy, but feel the quality. It is a must own lens for MFT users.

Great fast lens for my GX9. Excellent bokeh and super shallow dept of field, perfect for environmental portraits. However Color fringing is intense with this lens, which not all can be corrected with Lightroom.

This lens is brilliantly sharp quick focussing. Wonderful smooth background bokeh with a very Shallow depth of field with its F1.4 aperture. Nice focus length for portraits on M4/3 equivalent to a 60mm on a full frame. Although its plastic construction its of a very good quality build the hood could be a little tighter. It's most definitely a very worthy lens and unless I get rid of my M4/3 camera this lens is going nowhere 10 out of 10

Love this little lens, extremely sharp and a real bargain for the money, well built with the usual sigma build quality

amazing lens. If you’re using a MFT camera, this lens is amazing for depth of field and low light performance. I purchased the 35mm and 16mm 1.4. A must!

Feels really well made. Very smooth operation. Staggeringly sharp, even wide open. Lovely colour rendering. Bokeh is excellent, and the f1.4 aperture excels in low light or merely to isolate the subject. I am using this on GH5 and GX85 MFT bodies, so it translates to a 60mm in 35mm terms. Top class glass!

A fast, crisp, sharp 30MM lens. Excellent for any application.' Solid, sturdy, easy to control features. One of the best 4/3rds lenses on the market. Highly recommend'...Some examples:

This lens is a must have. I can't believe it's that affordable! All made in Japan, very reactive autofocus, well build but light, and an image quality that none of my panasonic lens can achieve. The bokeh is beautiful, and at f1.4 it is a must have with a micro four thirds camera!The focus ring is not mechanical, and there is no aperture ring either. It's not a manual lense. But you get the exif data, you have a very good autofocus that is faster than my lumix zooms, and the focus by wire ring is very good and precise.I will probably get their 16mm or 56mm. Those lenses are incredible! Well built, and an unbeatable price!

For micro four thirds, I know it is half the price of the 25mm f1.4 from Lumix, but that lens is much more better than this. This lens can only be compared with 25mm f1.7 from Lumix again which is half the price of this one and also better than this one. If you go up till f2.8 you slowly start to get sharper photos but still with lots of chromatic aberration. When you finally reach to f4.5, it starts to behave normal. Since this lens is not specifically produced for mft mount, it is also big in size and weights a lot according to what it is capable of. Save some money and buy 25mm f1.7 from Lumix since it is much sharper at f1.7, really much less chromatic aberration and much lighter.But even though there is no wr rating specifically for the 30mm, the build quality is so good for the price. However! It is not the build quality that takes the photos.

J'adore vraiment beaucoup le piqué de cet objectif. Je l'ai eu en tant que novice de la photographie et il m'a permi de faire des photos de portraits vraiment belles. Le flou d'arrière plan est vraiment beau. Je peux lister pas mal d'avantages à cet objectif :1 Compacité : En vrai il est très peu encombrant, je me retrouve à l'utiliser 80% du temps.2. Autofocus : Très sympa et rapide. Petite perte de rapidité lorsqu'on rajoute des filtres devant mais cela reste très convenable.3. Luminosité : Avec un ouverture à 1.4 il permet de belle photos de nuit.4. Fluidité : La manette de focus est très très souple ce qui permet un confort d'utilisation non négligeable !Conclusion : Très bon objectif pour tout le monde débutant comme pro pour des photos portrait. Je vous laisse un exemple en photo. Si vous avez des questions n'hésitez pas à me les poser ici ou bien sur mon instagram : yann_goasguen

Ich hatte die Wahl zwischen dem Olympus 25/1,8, dem Panasonic Leica 25/1,4 und theoretisch auch dem Olympus 25/1,2 und diesem Sigma hier. Ich brauchte ein lichtstarkes Normalobjektiv zum besseren Freistellen als beim bereits vorhandenen Panasonic 20/1,7, und der AF kann ruhig schneller sein. Ich habe auch das sehr gute Olympus 45/1,8 als leichtes Portraitele, aber es ist mir für 2er Portraits (Brautpaare) in Innenräumen zu lang.Ich entschied mich für das Sigma aus folgenden Gründen:1. Die Brennweite liegt gut zwischen dem 20er und 45er, und ergänzt sie so, kann aber notfalls auch beide ersetzen als „Immerdrauf“.2. Die optische Leistung bei Offenblende ist so gut, dass Abblenden im Wesentlichen nur die Schärfentiefe vergrößert. Vignettierung und Randschärfe sind sehr gut.3. Blende 1,4 hat bei 30 mm mehr Freistellungspotenzial als bei 25 mm. Die Hintergrundunschärfe ist beim selben Abbildungsmaßstab des Hauptmotivs zwar ähnlich, aber man hat weniger Details, und es wirkt verdichteter (leichter Teleeffekt).4. Größe und Gewicht mögen zwar als Minuspunkt erscheinen an MFT, aber ich empfinde es an der Olympus EM-1 mit Handgriff genau richtig. Es entspricht vom Formfaktor einem Profi-Standardzoom 12-35 oder 12-40/2,8, und damit kommen wir ja auch klar. Die Kombination sieht professionell aus, und das ist bei Hochzeiten und anderen Events nicht unwichtig.Gleichzeitig ist das Design des Sigmas schlicht, aber nicht billig. Der Fokusring ist butterweich, und manuelles Scharfstellen ein Traum. Die mitgelieferte Gegenlichtblende habe ich durch eine Gummisonnenblende für Zoomobjektive ersetzt, die man voll ausklappen kann und dann nicht vignettiert. Damit sieht das Objektiv noch professioneller aus, und man hat keine Angst, die aufgesteckte Sonnenblende zu verlieren.Die Nahgrenze reicht für Objekte mit 12 cm Breite, genug für Trauringe und das Buffet ;) Ich habe mir zeitgleich noch das Panasonic Leica 15/1,7 gegönnt, und beide sind eine unschlagbare Combo für Innenräume, wo 20mm und 45mm oft zu lang wären.Der Preis ist für ein Objektiv dieser Güte wirklich günstig, und man kann nichts verkehrt machen, solange man mit der relativen Größe gut klar kommt.