Sony FE 100mm f/2.8 Macro GM OSS

The Sony FE 100mm f/2.8 Macro GM OSS (SEL100M28GM) is a full-frame G Master prime lens with native 1.4x magnification, 11-blade aperture, built-in optical image stabilisation, and weather sealing — a significant step up from the earlier FE 90mm f/2.8 G.

Key Specifications

• Focal Length: 100mm prime
• Maximum Aperture: f/2.8 (constant)
• Magnification: 1.4x native; up to 2.8x with compatible teleconverter
• Minimum Focus Distance: 0.26 m
• Lens Construction: 17 elements in 13 groups
• Aperture Blades: 11 (for smooth, rounded bokeh)
• Image Stabilisation: Yes (OSS — Optical SteadyShot)
• Filter Thread: 67 mm
• Weight: 646 g | Length: 148 mm | Diameter: 81 mm
• Mount: Sony E (full-frame FE coverage) | Weather-sealed

Who is the Sony FE 100mm f/2.8 Macro GM OSS for?

This lens is built for two types of shooter who refuse to compromise. Macro photographers get native 1.4x magnification straight out of the box — no extension tubes, no cropping — and can push that to 2.8x with a Sony teleconverter. Portrait photographers benefit from the constant f/2.8 aperture, 11 rounded aperture blades for buttery bokeh, and the OSS stabilisation that keeps handheld shots sharp even at close focus distances. The G Master optical formula and weather sealing make it a strong choice for nature and insect photographers working outdoors in unpredictable conditions. If you shoot on any mirrorless Sony Alpha body — from the Sony Alpha 7R V to the Sony Alpha 1 — this lens is designed to extract every megapixel those sensors can offer. It is heavier and longer than the outgoing FE 90mm f/2.8 G, but the gains in magnification, sharpness, and build quality justify the trade-off for serious macro or portrait work.

Buying a used Sony FE 100mm f/2.8 Macro GM OSS

Picking up this lens second-hand is a smart move if you want G Master optics without the full new-price hit. Every pre-owned copy on Camera-tweedehands.nl is individually inspected and photographed so you can see exactly what you are getting. All used lenses come with a minimum 12 months warranty and a 14-day return window. The Sony FE 100mm f/2.8 Macro GM OSS holds its value well — if the budget allows, it is worth comparing with the more affordable used Sony FE 90mm f/2.8 G Macro or the third-party Sigma 105mm f/2.8 DG DN Macro Art, both of which are solid alternatives at a lower price point on the used market.