Samyang AF 18mm f/2.8 FE vs TTArtisan AF 17mm f/1.8 Air

Both are Sony E mount primes for wide-angle and vlogging — 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 18mm f/2.8 FE	TTArtisan AF 17mm f/1.8 Air
Focal length	18mm	17mm
Max aperture	f/2.8	f/1.8
Type	prime	prime
Coverage	full-frame	APS-C
Mount	Sony E	Sony E

Which should you buy?

the TTArtisan AF 17mm f/1.8 Air opens wider (f/1.8) — brighter in low light and more background blur
the TTArtisan AF 17mm f/1.8 Air (17mm) is wider — more in the frame for street and interiors; the Samyang AF 18mm f/2.8 FE (18mm) is tighter — more reach and compression for portraits
the Samyang AF 18mm f/2.8 FE covers full-frame (also works on APS-C bodies); the TTArtisan AF 17mm f/1.8 Air is APS-C-only — it won't fill a full-frame sensor

Where to buy

Samyang SYIO18AF AF 18mm F2.8 Full Frame Wide Angle Lens, Sony E | Wide-angle lens captures expansive landscapes, archit

Samyang AF 18mm f/2.8 FESee price on Amazon

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TTARTISAN AF 17mm f/1.8 Air Lens for Sony E APS-C Prime Wide-Angle Lenses | 17mm 1.8 E Auto Focus for A6000 A6100 A6300

TTArtisan AF 17mm f/1.8 AirSee price on Amazon

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FAQ

What's the difference between the Samyang AF 18mm f/2.8 FE and the TTArtisan AF 17mm f/1.8 Air?
The Samyang AF 18mm f/2.8 FE is 18mm f/2.8 prime, full-frame; the TTArtisan AF 17mm f/1.8 Air is 17mm f/1.8 prime, APS-C. Both fit the Sony E mount.

Which is better in low light, the Samyang AF 18mm f/2.8 FE or the TTArtisan AF 17mm f/1.8 Air?
The TTArtisan AF 17mm f/1.8 Air — its f/1.8 maximum aperture lets in more light and gives more background blur than the f/2.8 of the other.

Do the Samyang AF 18mm f/2.8 FE and TTArtisan AF 17mm f/1.8 Air 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 TTArtisan AF 17mm f/1.8 Air 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 18mm f/2.8 FEAffiliate linkSee price on Amazon