Sony FE 50mm F/1.2 GM SEL50F12GM

This Sony prime pairs a 50mm focal length with an f/1.2 aperture on full-frame E-mount bodies. That combination makes it a portrait and low-light specialist. Weddings, evening events and dim interiors suit it well, and the natural view also serves reportage.

The trade-off is weight and size. An aperture this wide calls for large glass. Sony launched the lens in 2021, and it remains in production.

It also lacks built-in stabilization, so steadiness comes from your camera body or your hold.

The lens weighs 1 lb 11.4 oz (778 g). It measures 3.43 in (87 mm) across and 4.25 in (108 mm) long. The front takes 72mm screw-in filters, so any filter attached directly must match that thread.

On a full-frame body, 50mm gives a standard view for portraits, street scenes and everyday subjects. Leave enough distance for the framing you want. A tight face portrait made from very close range can exaggerate facial features. Standing farther back gives a different perspective, even though the focal length stays the same.

The f/1.2 aperture is the defining feature. Compared with a smaller aperture, it gives you more light to keep shutter speeds useful in dim interiors. You can spend that light on a faster exposure or a lower ISO. The choice depends on how much the subject moves.

At f/1.2 and close portrait distances, depth of field can be very thin. That helps soften a busy background, especially when it sits well behind the subject. Small head movements may move the eyes out of focus. Stop down when you need more depth, and arrange group members at similar distances.

Close focus reaches 1.3 ft (40 cm), measured from the sensor. This suits table details, though the front glass sits closer to the subject. Maximum magnification is 0.17x. For portraits, use more working distance when you want less exaggerated proportions. The optics specification score is 91 out of 100.

The lens carries weather sealing, which helps when working outdoors through changeable conditions. Outdoor portrait sessions and weddings that run from afternoon into evening suit it, since the weather often shifts during a long shoot.

A fluorine coating on the front element helps water and oil wipe away cleanly. It makes fingerprints easier to remove between shots. Brush loose grit away first and use a clean lens cloth, especially after working in dusty conditions.

There is no in-lens stabilization. A camera with body stabilization can help with still subjects. A faster shutter speed or firm support offers other ways to reduce camera shake. Light levels still determine whether f/1.2 gives enough room for the shutter speed you need. The features specification score is 52 out of 100.

Inside sit 14 elements in 10 groups, including three XA aspherical elements. Their shaped surfaces help correct distortion and spherical aberration. Internal focusing keeps the barrel length fixed as focus changes. The design has no low-dispersion glass. Its construction specification score is 54 out of 100.