Samyang AF 135mm f/1.8 FE vs Sirui Sniper 75mm f/1.2

Both are Sony E mount primes for telephoto and portrait — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.

Last verified 2026-09-01 · Sony E mount · prices change — check the retailer

Spec	Samyang AF 135mm f/1.8 FE	Sirui Sniper 75mm f/1.2
Focal length	135mm	75mm
Max aperture	f/1.8	f/1.2
Type	prime	prime
Coverage	full-frame	APS-C
Mount	Sony E	Sony E

Which should you buy?

the Sirui Sniper 75mm f/1.2 opens wider (f/1.2) — brighter in low light and more background blur
the Sirui Sniper 75mm f/1.2 (75mm) is wider — more in the frame for street and interiors; the Samyang AF 135mm f/1.8 FE (135mm) is tighter — more reach and compression for portraits
the Samyang AF 135mm f/1.8 FE covers full-frame (also works on APS-C bodies); the Sirui Sniper 75mm f/1.2 is APS-C-only — it won't fill a full-frame sensor

Where to buy

SAMYANG 135mm f/1.8 AF Lens Compatible with Sony FE

Samyang AF 135mm f/1.8 FESee price on Amazon

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SIRUI Sniper 75mm Autofocus F1.2 Telephoto APS-C Cine Lens, E Mount, White

Sirui Sniper 75mm f/1.2See price on Amazon

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FAQ

What's the difference between the Samyang AF 135mm f/1.8 FE and the Sirui Sniper 75mm f/1.2?
The Samyang AF 135mm f/1.8 FE is 135mm f/1.8 prime, full-frame; the Sirui Sniper 75mm f/1.2 is 75mm f/1.2 prime, APS-C. Both fit the Sony E mount.

Which is better in low light, the Samyang AF 135mm f/1.8 FE or the Sirui Sniper 75mm f/1.2?
The Sirui Sniper 75mm f/1.2 — its f/1.2 maximum aperture lets in more light and gives more background blur than the f/1.8 of the other.

Do the Samyang AF 135mm f/1.8 FE and Sirui Sniper 75mm f/1.2 fit the same camera?
Yes — both are Sony E mount lenses, so they fit Sony a7/a9/a1 (full-frame) and a6000-series (APS-C). Note the Sirui Sniper 75mm f/1.2 is APS-C-only and won't fill a full-frame sensor.

Citing these specs? Go ahead — manufacturer data, last verified 2026-09-01. Copy a ready-made reference:

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Samyang AF 135mm f/1.8 FEAffiliate linkSee price on Amazon