Sony E lens

Samyang AF 45mm F1.8 FE

45 mm, f/1.8, made for full frame. It mounts natively on 8 of our APS-C cameras; on the a6400 it frames like 68 mm.

45 mm · 68 mm equiv. on a6400
f/1.8
49 mm filter
162 g

56.1 mm long61.8 mm49 mm filter thread

Drawn from Samyang's published size: 61.8 × 56.1 mm. Details simplified.

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On your camera

The view, the weight with the camera (battery and card included) and what the maker says about each pair. Samyang makes this lens for each mount; Samyang publishes the cameras it supports and lens firmware updates on its own site. It is made for full-frame sensors and covers APS-C with room to spare.

Every camera in our catalogue this lens mounts on: 8
Camera	View (35 mm equiv.)	With the camera	Fit and maker's notes
Sony a6000	68 mm	506 g	Fits and works Native mount: it fits and works. Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Sony a6100	68 mm	558 g	Fits and works Native mount: it fits and works. Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Sony a6400	68 mm	565 g	Fits and works Native mount: it fits and works. Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Sony a6600	68 mm	665 g	Fits and works
Sony a6700	68 mm	655 g	Fits and works
Sony ZV-E10	68 mm	505 g	Fits and works Native mount: it fits and works. Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Sony ZV-E10 II	68 mm	539 g	Fits and works Native mount: it fits and works. Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Sony FX30	68 mm	808 g	Fits and works

What it frames

60 mm68 mm68 mm

Highlighted: this lens on the a6400. A zoom's dashed frame is its longest view.

At its closest (45 cm from the sensor) it fills the frame of the a6400 with a subject about 20 cm wide.

On the a6400, to scale

Side view drawn from the published depth of the camera and length of the lens. 565 g together.

Every lens with a 49 mm thread

Other standard primes for Sony E

The nearest in focal length, with the numbers that differ.

Sigma 45mm F2.8 DG DN Contemporary68 mm equiv. · f/2.8 · 230 g (+68 g) · 55 mmCompare
Sony FE 40mm F2.5 G60 mm equiv. · f/2.5 · 173 g (+11 g) · 49 mmCompare
Viltrox AF 40mm F2.5 Air60 mm equiv. · f/2.5 · 167 g (+5 g) · 52 mmCompare
Sony E 35mm F1.8 OSS53 mm equiv. · f/1.8 · 154 g (−8 g) · 49 mmCompare
Sony FE 35mm F1.4 GM53 mm equiv. · f/1.4 · 524 g (+362 g) · 67 mmCompare
Sony FE 35mm F1.853 mm equiv. · f/1.8 · 280 g (+118 g) · 55 mmCompare

Questions about this lens

Which cameras does the Samyang AF 45mm F1.8 FE fit?

8 APS-C cameras in our catalogue: a6000, a6100, a6400, a6600, a6700, ZV-E10, ZV-E10 II, FX30. It is made for full frame, so it also fits the full-frame cameras on its mount.

What does it frame like on APS-C?

45 mm frames like 68 mm on the a6400 (1.5x).

What filter size does it take?

49 mm screw-in filters. Every lens with a 49 mm thread.

Where these facts come from

Facts checked 9 Oct 2026 against the makers' specification pages. How we check

Size, weight, filter thread, close focus and magnification are Samyang's published figures. We have not tested this lens; for image quality, read reviews from people who have.

Specifications

Mount: Sony E
Made for: Full-frame sensors (covers APS-C too)
Focal length: 45 mm
Maximum aperture: f/1.8
Lens stabilisation: No
Weather sealing: No
Filter thread: 49 mm
Weight: 162 g
Size (diameter × length): 61.8 × 56.1 mm
Closest focus: 45 cm
Maximum magnification: 0.12x
Autofocus: Yes
Announced: 2019