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Sony 24mm f/1.4 GM Review


UPDATE 22-10-2018

About 1 month after writing this 'first impressions' Review I am back with an update. As mentioned in this article I brought the lens to Iceland (during tours I am doing for Iceland Photo Tours and also spent some time with my girlfriend) for 3 weeks for further testing. This review is now updated with lots of new image material and a couple of new findings especially regarding astrophotography. Please scroll down for the new material.

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I had the please of trying out the brand new Sony 24mm f/1.4 G-Master lens before it was announced today. I spent the last few days in Sicily (actually only 1 ‘real’ day) with Sony Europe and we had some time to try out the lens. First things first: as most of you know I am a Sony Ambassador of Imaging so you might think I am biased when reviewing Sony products. I am always honest in my reviews and will point out flaws regardless of brands I am representing. Apart from Sony, most of the people on this trip were press. I was one of the very few ambassadors on this event that got to try out the lens. I am now sitting at the airport writing this article, but I can only release it tomorrow (when you read this) when my NDA ends.

There were a lot of rumors going around about Sony announcing a bunch of new stuff within this event. It was almost certain that they would announce the 24mm which they did, but there were also a lot of other ‘hopes’ like the 135mm GM and maybe a new body. Unfortunately, Sony didn’t announce any of that during this event. Who knows if they will do another announcement during Photokina, but I don’t know anything about that. For now, it’s ‘just’ the 24mm. But the 24mm 1.4 is not just another 24mm. It completes the Sony Native e-mount line up with now 30 lenses! That’s quite something if you consider that the competition is just starting on mirrorless.

NOTE: For higher resolution shots, please scroll to the bottom of this article where I included a gallery.

When I first saw the 24mm and was holding it in my hands there were immediately some things that stood out. The small form factor and most importantly: the very light weight of the lens. The lens has a very modern sleek design with some key functions right at your disposal. It doesn’t have a lot of buttons like some of the big GM lenses, but instead a very minimal modern design. The package of the 24mm and my Sony A7RIII felt and looks great.

Top view of the Sony 24mm f/1.4 GM mounted on the Sony A7RIII

So about the weight. This lens weighs just 445 gram. That’s not just lightweight, it’s extremely light weight if you compare it to its competition. A small comparison:

24mm f1.4 Samyang : 665g

24mm f1.4 Nikon: 650g

24mm f1.4 Canon USM II: 650g

So with it’s 445g, the Sony lens is almost 50% lighter than the competition! Sony is really pushing the lightweight advantage of the mirrorless system here, which is great for people like me who are traveling a lot with their gear.

When we look at the rest of the lens we see some interesting features:

  • A dedicated wheel for the aperture. Aperture goes from f/1.4 to f/16. After F16 comes ‘A’. When you put the lens to A the aperture is controlled by the body. When you use the wheel on the lens itself it will override the aperture setting from the body.

  • A switch to change the aperture ring to steps or step-less. As usual, Sony thinks about the videographers out there that can greatly benefit from smooth step-less aperture change.

  • AF/MF Switch

  • A decently sized lens hood is included. When we remove this we see a 67mm filter thread. As expected this lens takes 100mm filters (or 67 screw ins of course)

  • The focus ring is nice and smooth. It’s not too smooth and offers enough resistance to keep it in place. It turns infinite, as we see in every other GM lens.

switch on the 24mm GM lens to set the aperture to clicks or smooth.

Sony arranged some shooting locations and models for us to try the lens on. I actually didn’t expect to try the lens for a long amount of time but it was quite a nice morning with enough time to get a good first impression of the lens. With an early wake up of around 5:30 we went out to shoot the sunrise. The session went on till about 11 AM so we had about 5 hours of shooting some landscapes, cityscapes, macro and portraits. Multiple locations that were all different made it possible for me to take my time and take a bunch of shots.

Sony A7RIII, Sony 24GM, f/8, 1/25s, ISO 200, Hand held

Sony A7RIII, Sony 24GM, f/8, 1/40s, ISO 100

We spent the sunrise close to the hotel in the harbor of Catania, Sicily. There were some nice sea views there and we had a colorful sunrise. I tried some landscapes and portraits here (although I am not a portrait photographer ;) ) I didn’t bring my tripod so all of the shots in this article were made hand held. As expected, the corner to corner sharpness of this lens is great. It performs well over the entire aperture range.

Sony A7RIII, Sony 24mm, widen open f1.4, 1/1250s, ISO100

Obviously, you would want to use this lens at its 1.4 aperture. It does not disappoint here. With Sony’s G-Master brand they always promote extreme resolution and sharpness combines with a beautiful Bokeh. As you can see in above image it looks great.

100% crop of the face. The sharpness here wide open at f/1.4 is quite incredible.

Sony A7RIII, Sony 24mm, widen open f1.4, 1/1250s, ISO100

From a bit further away the subject still pops from the background with great sharpness on the subject and a smooth out of focus backdrop. The autofocus was fast and snappy here and the use of the facial recognition with Eye-AF is really useful when using a lens with such a small depth of field. It is worth noting that this lens obviously has some vignetting at f/1.4. The upcoming lens profile will fix this, but at the time of writing this lens profile isn’t out yet.

The close focus distance of the lens is quite close making it possible to do some macro shots. I spent some time to do some macro shots wide open. These were all shots at minimum focus distance:

Sony A7RIII, Sony 24mm, widen open f1.4, 1/400s, ISO100

Sony A7RIII, Sony 24mm, widen open f1.4, 1/640s, ISO100

Sony A7RIII, Sony 24mm, widen open f1.4, 1/500s, ISO100

In the last photo you can see the sun in the background. Because of its 11 aperture blades this lens has some nice ‘bokeh balls’ that are smooth and round.

After our first harbor location we went for a little drive up to a little beautiful Italian village named Castelmola. I love shooting these cute little streets in these villages so I was in my element here. Because we were there so early in the morning the village was basically empty and it was a pleasure to walk around, enjoy the atmosphere and take some photos. Here