
Comparison
Sony FE 135 mm f/1.8 GM – a review of the king of portrait lenses
Sony FE 135 mm f/1.8 GM review: a portrait specialist with gorgeous bokeh, sharp rendering and fast, reliable autofocus.
The Sony FE 135 mm f/1.8 GM isn't just another telephoto from the G Master line. It's a true portrait specialist that can elegantly separate your subject from the background. If you're looking for top-tier performance and beautiful bokeh, it's definitely worth considering.
Why 135 mm for portraits
The 135 mm focal length is a portrait classic. Unlike wider lenses, it doesn't distort the face, yet you don't stand so far from the model that you can't communicate naturally.
At this focal length you can strongly isolate your subject from the background while the composition still looks natural. The lens works both in the studio and outdoors. For owners of full-frame Sony bodies, it's one of the most balanced portrait focal lengths.
Optical quality
As a member of the G Master line, the 135 mm f/1.8 GM delivers the high optical performance you'd expect. The design uses special glass, including ED elements, which suppress chromatic aberration.
At f/1.8 the image is very sharp in the center and very good in the corners, reaching peak sharpness when stopped down to f/2.8–f/4. For a portrait lens, that's more than enough. Contrast and colors are typical of Sony – faithful and natural.
Bokeh and rendering
This is where the lens is truly king. The 11-blade aperture forms a circular opening, so the bokeh is very smooth and natural. The background melts away softly without distracting elements, and your subject stands out from it.
Portraits have a characteristic “painterly” rendering. Even wide open at f/1.8, the transition between the plane of focus and the background is smooth, which is key for a professional result. If you want magazine-style shots, this lens will help you get there.
Autofocus
The Sony FE 135 mm f/1.8 GM focuses with XD linear motors, so the autofocus is quiet, fast and accurate. It reliably tracks movement, even with a more distant subject.
You'll appreciate this especially when shooting kids or animals that change position quickly. Sony's eye AF works superbly with this lens, making shooting easier and raising your keeper rate. Focus breathing is minimal, which video creators will appreciate too.
When it's the right choice
The lens is ideal for portraits in the studio, outdoors and at events such as weddings. If you want firm control over depth of field and strong separation of your subject from the background, the 135 mm f/1.8 is a great choice.
Keep in mind, though, that it isn't a small or light lens – you'll feel its weight over a full-day event. If you need an even faster aperture for night shooting or a longer telephoto, consider other options.
Conclusion
The Sony FE 135 mm f/1.8 GM is a top-tier portrait lens that meets the demands of professionals and enthusiasts alike. With excellent optics, beautiful bokeh and reliable autofocus, it's an investment that pays off. If you want beautiful portraits with minimal effort, you shouldn't overlook it.

