Samyang Sony E Prime

AF 45mm f/1.8

45mm
f/45.0
Prime
Min focus 0.45 m

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Quick answer

The Samyang AF 45mm f/1.8 is a standard prime lens covering 45mm at f/45.0 for the Sony E mount. Its smaller maximum aperture favours daylight shooting and keeps the lens compact.

About this lens

The Samyang AF 45mm f/1.8 is a fast standard prime lens covering 45mm at f/1.8 for Sony E mount cameras. The natural field of view suits street, documentary and everyday photography.

Samyang AF 45mm f/1.8 specifications

Brand: Samyang
Mount: Sony E
Focal length: 45mm
Maximum aperture: f/45.0
Lens type: Prime
Optical construction: 7 elements in 6 groups
Aperture blades: 9
Autofocus motor: Linear STM
Minimum focus distance: 0.45 m
Maximum magnification: 0.12x
Filter thread: 49 mm

Specification source: lksamyang.com

What can you shoot with the Samyang AF 45mm f/1.8?

At 45mm this is a standard prime, which typically suits:

Everyday and street photography
Natural-perspective portraits
Documentary and travel work

Its smaller maximum aperture favours daylight shooting and keeps the lens compact.

Full-frame equivalent and field of view

Calculated from the focal length and crop factor. Not measured.

Sensor	Crop	Equivalent	Horizontal FOV	Diagonal FOV
Full frame	1.0x	45mm	43.6°	51.4°
APS-C	1.5x	68mm	29.9°	35.5°

Try the field-of-view calculator

Frequently asked questions

What mount does the Samyang AF 45mm f/1.8 use?

It uses the Sony E mount, so it fits Sony E cameras directly.

What is the focal length of the Samyang AF 45mm f/1.8?

It is a fixed 45mm lens with a maximum aperture of f/45.0. That makes it a standard lens.

Is the Samyang AF 45mm f/1.8 a prime or a zoom lens?

It is a prime lens with a fixed 45mm focal length. Primes usually open wider than zooms; this one opens to f/45.0.

What is the Samyang AF 45mm f/1.8 equivalent on a crop sensor?

On APS-C (1.5x crop) it frames like 68mm on full frame, with a 29.9° horizontal and 35.5° diagonal field of view. These figures are calculated from the focal length and crop factor.