Sony E Autofocus

TTArtisan AF 17mm f/1.8 Air

Focal length: 17 mm
Aperture: f/1.8
Weight: –
Filter diameter: 52 mm
Min. focus distance: 18 cm
Length: 47 mm

Overview

The TTArtisan AF 17mm f/1.8 Air is a compact autofocus wide-angle prime for APS-C mirrorless cameras, offered for Fujifilm X, Sony E and Nikon Z. On APS-C, 17 mm is equivalent to 25 mm on full frame, with an 81 degree angle of view. TTArtisan says the compact design matches the lightweight look of Fujifilm bodies.

Optical design

The lens has 14 elements in 10 groups and a 6-blade diaphragm covering f/1.8 to f/16. The filter thread measures 52 mm. The minimum focus distance is only 0.18 m, which TTArtisan promotes for close-up shots with a wide-angle perspective. The manufacturer's data sheet lists the frame as full frame, but the text calls it an APS-C lens, so the lens is treated as APS-C here.

Autofocus and handling

A stepping motor drives the autofocus, with eye and face recognition for subject tracking. TTArtisan describes the focusing as smooth and fast for faces, pets and moving subjects.

Build and size

The body is made of metal. The weight is stated as 161 to 178 g depending on the mount, with a headline figure of approx. 161 g. Dimensions per mount (diameter x length) are 60 x 47 mm for Fujifilm X and Sony E and 65 x 51 mm for Nikon Z.

Where it fits

Alternatives for APS-C in the database include the Fujifilm XF 16mm F2.8 R WR, the Fujifilm XF 18mm F2 R, the Viltrox AF 16mm F1.8 for Sony E and Nikon Z, and the Sigma 16mm F1.4 DC DN Contemporary. These lenses differ in focal length, aperture and weather sealing. The TTArtisan is a lighter, simpler option with a short minimum focus distance.

Pros and cons

Pros

Light at about 161 to 178 g
f/1.8 aperture at 17 mm
0.18 m minimum focus distance
Metal body and eye and face recognition

Cons

Only 6 aperture blades
No optical stabilisation in the lens
The manufacturer's data sheet contains a format error

Verdict

The TTArtisan AF 17mm f/1.8 Air targets users who want a small, bright wide-angle prime for travel and street photography on APS-C. The data show a short minimum focus distance and low weight. Those who need weather sealing or a wider aperture range should compare the first-party options named above.

Technical Specifications

min focal length: 17 mm
max focal length: 17 mm
max f (min zoom): f/1.8
max f (max zoom): f/1.8
min. aperture: f/16
Elements: 14
Groups: 10
Weight: –
Filter diameter: 52 mm
min focus distance: 18 cm (7.09 in)
Length: 47 mm (1.85 in)
Diameter: 60 mm (2.36 in)

Simulate depth of field and angle of view

Which cameras does the TTArtisan AF 17mm f/1.8 Air fit?

The TTArtisan AF 17mm f/1.8 Air is designed for APS-C sensors. On APS-C Sony E-Mount cameras its field of view equals 26 mm in full-frame terms. Full-frame bodies use it in APS-C (crop) mode, recording only part of the sensor and fewer megapixels.

Sony E-Mount cameras

Full frame (in APS-C mode):: Sony A7R VI, Sony A7 V, Sony FX2, Sony A1 II, Sony A9 III, Sony A7C II, Sony A7CR, Sony ZV-E1, Sony A7R V, Sony A7 IV, Sony A1, Sony FX3, Sony A7S III, Sony A7C, Sony FX6, Sony A7R IV, Sony A9 II, Sony FX9, Sony A7 III, Sony A7R III, Sony A9, Sony A7R II, Sony A7S II, Sony A7 II, Sony A7S, Sony A7, Sony A7R
APS-C:: Sony ZV-E10 II, Sony A6700, Sony FX30, Sony ZV-E10, Sony A6600, Sony A6100, Sony A6400, Sony A6500, Sony A6300, Sony A6000, Sony A5100, Sony A5000, Sony A3000, Sony NEX-5T, Sony NEX-3N, Sony NEX-6, Sony NEX-5R, Sony NEX-F3