Sony E Autofocus

TTArtisan AF 23mm f/1.8

Focal length: 23 mm
Aperture: f/1.8
Weight: 210 g
Filter diameter: 52 mm
Min. focus distance: 30 cm
Length: 60 mm

Overview

The TTArtisan AF 23mm f/1.8 is an autofocus prime for APS-C mirrorless cameras, offered for Fujifilm X, Sony E and Nikon Z. On APS-C, 23 mm corresponds to about 35 mm on full frame, a versatile field of view for street photography, landscapes and portraits, as TTArtisan puts it.

Optical design

The lens has 11 elements in 9 groups with a 9-blade diaphragm and an aperture range of f/1.8 to f/16. The angle of view is 62 degrees. The minimum focus distance is 0.3 m, so close subjects such as food or small objects are within reach. The manufacturer's page does not mention special glass such as ED elements. The filter thread measures 52 mm.

Autofocus and handling

A stepper motor with eye recognition drives the autofocus, and TTArtisan describes the focusing as silent and quick for both photo and video. A Type-C interface for firmware updates is in the rear lens cap, and a lens hood is included.

Build and size

The body is made of 5052 aviation-grade aluminium. TTArtisan states about 210 g. Dimensions per mount are 67 x 60 mm for Fujifilm X and Sony E and 64 x 62 mm for Nikon Z (diameter x length).

Where it fits

Comparable APS-C wide-normal primes in the database include the Viltrox AF 23mm F/1.4, the Fujifilm XF 23mm F2 R WR and the Nikon Nikkor Z DX 24mm F1.7. They differ in aperture, weather sealing and size. The TTArtisan stands out through its f/1.8 aperture and close focusing at a moderate weight of 210 g. Within the maker's own range, the AF 35mm f/1.8 II and the AF 56mm f/1.8 cover longer focal lengths.

Pros and cons

Pros

f/1.8 aperture with 9 blades
Close focusing at 0.3 m
Metal body, about 210 g
Eye recognition autofocus on three mounts

Cons

No optical stabilisation in the lens
No special glass is listed on the manufacturer's page
Heavier than the maker's smaller pancake lenses

Verdict

The TTArtisan AF 23mm f/1.8 is a straightforward 35 mm equivalent autofocus prime for APS-C systems. The data show a bright aperture, a short minimum focus distance and a metal build. It is a good fit for everyday photography, while users who prefer a brighter f/1.4 aperture or weather sealing should look at the alternatives named above.

Technical Specifications

min focal length: 23 mm
max focal length: 23 mm
max f (min zoom): f/1.8
max f (max zoom): f/1.8
min. aperture: f/16
Elements: 11
Groups: 9
Weight: 210 g (0.46 lb)
Filter diameter: 52 mm
min focus distance: 30 cm (11.81 in)
Length: 60 mm (2.36 in)
Diameter: 67 mm (2.64 in)

Simulate depth of field and angle of view

Which cameras does the TTArtisan AF 23mm f/1.8 fit?

The TTArtisan AF 23mm f/1.8 is designed for APS-C sensors. On APS-C Sony E-Mount cameras its field of view equals 35 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