A Look at the Versatile New Sony FE 100mm f/2.8 Macro GM Lens

Macro lenses rarely change the way you shoot, but this one pushes past life-size and keeps autofocus. If you want cleaner close-ups, steadier handheld results, and more control over depth, take a look at this option.

Coming to you from Gordon Laing, this practical video walks through the new Sony FE 100mm f/2.8 Macro GM lens and shows what 1.4:1 looks like in the real world. Working distance stays comfortable at roughly 9 cm from the front at maximum magnification, so you avoid casting shadows or startling a living subject. Autofocus remains dependable at the minimum focus, and DMF gives you a quick nudge to place the critical plane. The focus limiter offers full, infinity–0.5 m, and 0.26–0.7 m ranges to cut hunting at close range.

Laing shows how the lens behaves in the field, not just on a bench. Corner sharpness improves when you stop down slightly at macro distances, while center detail is already crisp wide open. You also see the effective aperture change up close, where f/2.8 behaves closer to f/5.6 for exposure, which affects your ISO picks. Handheld clips benefit from optical stabilization in the lens plus in-body stabilization, which steadies small movements that would otherwise wobble a composition. Continuous AF holds on as you move from portrait distance toward minimum focus, provided you keep a small AF area on the specific feature that matters, like an insect’s eye.

Key Specs

• Focal Length: 100mm

• Aperture: Maximum f/2.8, Minimum f/22

• Lens Mount: Sony E

• Lens Format Coverage: Full frame

• Minimum Focus Distance: 10.2 in / 26 cm (from sensor)

• Magnification: 1.4:1 macro reproduction, 1.4x magnification

• Optical Design: 17 elements in 13 groups

• Aperture Blades: 11, rounded

• Focus Type: Autofocus

• Image Stabilization: Yes

• Filter Size: 67mm (front)

• Dimensions: ø 3.2 x L 5.8 in / ø 81.4 x L 147.9 mm

• Weight: 1.4 lbs / 646 g

Build and controls land where you expect from a G Master lens. You get an aperture ring with click/de-click, an AF/MF switch, two focus-hold buttons, and a DMF toggle for full-time manual override. Weather-sealing is improved, including a mount gasket you can trust in humid spaces. The focusing ring uses a clutch to flip between modes, and the long throw in manual helps nail plane placement without hunting.

The video also covers behavior outside macro distance. At portrait range, you get clean separation at f/2.8 with smooth backgrounds, though not the melt of a faster short tele. Bokeh balls show slight cat’s-eye shaping toward the edges at f/2.8 and become more uniform by around f/4, while the 11-blade diaphragm shows geometric shapes as you stop down further. Focus breathing is visible as you rack from infinity to close focus, which is typical for macro designs and something you account for when composing tight frames. Shutter choice matters with living subjects and moving plants, where 1/400 second is a pragmatic floor under mixed light and the practical aperture loss at close focus pushes ISO higher, up to ISO 8,000 in one dim example.

You also see practical combinations with native accessories. The lens maintains autofocus with the Sony FE 1.4x Teleconverter and FE 2.0x Teleconverter, which extend magnification while keeping handling familiar. The camera body used in the demo is the a7R V, and its AF system helps when you switch from subject-detect to a tight single-point area at very close range. Check out the video above for the full rundown from Laing.