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A Guide to Sony G Master Lenses
Kamera Express
Sony G Master Series
With the G Master series, Sony has prepared its lenses for the future. This is Sony’s flagship lens line. The lenses in this series are designed to deliver the ultimate combination of high resolution and beautiful bokeh, opening up a world of creative possibilities.
Key Features of the G Master Series
- Exceptional resolution
- Dreamlike bokeh effect
- Robust construction
- XA lens elements
- Advanced computer simulations
- User-friendly operation
Exceptional Resolution
Sony places great emphasis on high resolution, and this is clearly reflected in the G Master series. The lenses in this range can resolve up to 50 line pairs per millimeter, which means they deliver exceptionally high contrast. In addition, these lenses reproduce even the finest details. This allows you to create images with razor-sharp textures and spectacular detail.
Dreamlike Bokeh Effect
For the G Master series, Sony uses XA (extreme aspherical) lens elements. These provide exceptional surface precision without optical imperfections, enabling you to create stunning bokeh in your images. Advanced computer technology further enhances the effect by giving the bokeh a smooth and natural quality without distracting lines or edges. As a result, Sony successfully achieves the challenging combination of beautiful bokeh and high resolution.
Robust Construction
With a G Master lens, you never have to worry about a rain shower. Thanks to its dust- and moisture-resistant design, the lens remains well protected at all times. Combined with user-friendly controls and a durable construction, this ensures superior performance in every situation.
Lenses in the Sony G Master Series
Photographer Gustav Kiburg on Sony G Master Lenses
We spoke with nature photographer Gustav Kiburg, who frequently uses G Master telephoto lenses in his work.
“Nature photography is my greatest passion. I travel throughout Europe in search of the best locations to photograph nature. I originally started with Minolta equipment as a hobby photographer. Today, I am a Sony ambassador and give lectures and demonstrations on nature photography. During these sessions, I explain how to get more out of your Sony camera. I also work as a photography guide.”
What is the reason you often shoot with Sony?
“I enjoy using Sony cameras because they are highly innovative. They help me create better and more impressive photographs. Sensor quality is also very important to me, as is camera reliability. I use the 70-200 GM for birds in flight because it is an extremely fast lens with outstanding sharpness. Combined with the Sony A9, it is the perfect setup for capturing subjects in the air. I use the 100-400 GM for all kinds of animals at greater distances. The lens is fast and sharp. Together with the 1.4x teleconverter, it becomes an excellent combination.”
What else do you use the G Master lenses and the A9 for?
“I use the 70-200 GM and the 100-400 GM for all kinds of wildlife and in all conditions: flying birds, kingfishers, eagles, hawks, and squirrels. These lenses have the speed and sharpness needed to create beautiful photographs.”

Are there any other reasons why you enjoy working with Sony?
“The autofocus is fast and reliable. For nature photography, the precision and reliability of Sony’s autofocus system are indispensable. Every photographer has to consider dynamic range. Sony files contain a wealth of information, which makes my work much easier, especially in low-light conditions. I also find the file size of the Sony A7R II particularly useful. Sometimes I cannot get as close to animals as I would like. To achieve a good result, I need to be able to crop an image without sacrificing print quality. At first, I was amazed by the sharpness and quality of the GM lenses—they are incredibly good. You get an amazing feeling when you see the incredibly sharp images produced by a GM lens.”
Gustav: “The photo above was taken in low light and strong wind. I had to react very quickly to capture it. Without the speed of the camera and the lens, it would have been almost impossible.”
Gustav: “This photo was taken in a forest using the A9 and the 100-400 GM lens. The bird was extremely cautious. The images produced by this combination are so sharp that they almost look three-dimensional. It surprises me that a zoom lens can deliver such high resolution. I would normally only expect that from a prime lens with a fixed focal length.”