Head-to-head

Sony - FE 70-200mm f/2.8 GM OSS II vs Voigtländer - APO-Lanthar 50mm f/2 SE

Last updated Jun 1, 2026 · How Mars Score works

Probe A

Sony

FE 70-200mm f/2.8 GM OSS II

71.3/ 100B

Optics71· 55%

Build—· 35%

Mount—· 10%

Probe B

Voigtländer

APO-Lanthar 50mm f/2 SE

57.6/ 100D

Optics58· 55%

Build—· 35%

Mount—· 10%

Quick verdict

Between the FE 70-200mm f/2.8 GM OSS II and APO-Lanthar 50mm f/2 SE, the FE 70-200mm f/2.8 GM OSS II comes out ahead in weather sealed / optical stabilization, while the APO-Lanthar 50mm f/2 SE wins on weight. Overall, the FE 70-200mm f/2.8 GM OSS II scores 71.3 and the APO-Lanthar 50mm f/2 SE scores 57.6 on our Mars Score.

Buying advice

Which should you buy?

The FE 70-200mm f/2.8 GM OSS II is the clear pick on raw spec strength, leading by 13.7 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the FE 70-200mm f/2.8 GM OSS II if you care most about weather sealed / optical stabilization. The biggest gaps in its favor are weather sealed, optical stabilization, min focal, among others.

Pick the APO-Lanthar 50mm f/2 SE if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight.

There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.

Bottom line: the FE 70-200mm f/2.8 GM OSS II is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why Sony - FE 70-200mm f/2.8 GM OSS II wins

▲Has Weather sealed.
▲Has Optical stabilization.
▲Min focal: 70 (vs 50).
▲Max focal: 200 (vs 50).

Why Voigtländer - APO-Lanthar 50mm f/2 SE wins

▲Weight — 681.00 g less. 364 vs 1045.

Full readout

Spec comparison

Optics

Spec	Sony - FE 70-200mm f/2.8 GM OSS II	Voigtländer - APO-Lanthar 50mm f/2 SE
Min focal	70 mmlead	50 mm
Max focal	200 mmlead	50 mm
Max aperture	f/2.8	f/2
Min aperture	f/22	f/22

Build

Spec	Sony - FE 70-200mm f/2.8 GM OSS II	Voigtländer - APO-Lanthar 50mm f/2 SE
Weight	1045 g	364 glead
Weather sealedⓘ	truelead	false
Optical stabilizationⓘ	truelead	false

Mount

Spec	Sony - FE 70-200mm f/2.8 GM OSS II	Voigtländer - APO-Lanthar 50mm f/2 SE
Lens mount	Sony E	Sony E

Drill down

Spec-level deep dives

Min focal→Max focal→Max aperture→Min aperture→Weight→Weather sealed→Optical stabilization→Lens mount→

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