Portrait / short tele prime · Full frame

Samyang AF 75mm f/1.8

The Samyang AF 75mm f/1.8 is a full frame prime lens (75 mm, f/1.8) for Sony E-mount. It belongs to the portrait / short tele prime class — ideal for head-and-shoulders portraits with flattering perspective and creamy backgrounds.

75 mmf/1.8Sony E-mount
75 mm
Focal length
f/1.8
Maximum aperture
32°
Diagonal angle of view (Full frame)
Full frame
Designed for

Specifications#

Brand
Samyang
Model
AF 75mm f/1.8
Lens type
Portrait / short tele prime
Focal length
75 mm
Maximum aperture
f/1.8
Image circle
Full frame (36×24 mm)
Mount(s)
Sony E-mount
Projection
Rectilinear
Lensfun correction profile
Yes — distortion/vignetting/TCA

Equivalent focal length on different cameras#

Field of view and depth-of-field equivalence when this lens is used on bodies with different sensor sizes (natively or via an adapter).

Camera formatAt 75 mmEquiv. aperture (DoF)
Full frame75 mm · 32°f/1.8
APS-C112 mm · 21°f/2.7
APS-C (Canon)120 mm · 20°f/2.9
Micro Four Thirds150 mm · 16°f/3.6

Depth of field & background blur#

Computed on its native Full frame format (CoC 30 µm). “Blur @2 m” is the size of an out-of-focus point at infinity, as a percentage of frame width, with the subject at 2 m — a simple bokeh index. Full table: 85 mm f/1.8 on full frame.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
75 mmf/1.81.8 cm7.4 cm47.4 cm1.92 m104 m4.5%
75 mmf/43.9 cm16.5 cm1.06 m4.43 m47.0 m2.0%
75 mmf/87.9 cm33.1 cm2.20 m10.3 m23.5 m1.0%

Handheld & night-sky limits#

NPF assumes typical 20–24 MP sensors (≈6 µm pixels on full frame, ≈3.9 µm on APS-C, ≈3.3 µm on Micro Four Thirds).

BodyMin. handheld shutter (longest focal)500 rule at 75 mmNPF at 75 mm, f/1.8
Full frame1/80 s7 s3 s
APS-C1/125 s4 s2 s
APS-C (Canon)1/125 s4 s2 s
Micro Four Thirds1/160 s3 s2 s

Adapt it to other systems#

Frequently asked questions#

Is the Samyang AF 75mm f/1.8 full frame?

Yes — it covers the full 36 × 24 mm frame.

What is the Samyang AF 75mm f/1.8 equivalent to on APS-C?

On a 1.5× APS-C body it frames like 112 mm, and like 120 mm on Canon APS-C.

What is the Samyang AF 75mm f/1.8 good for?

As a portrait / short tele prime it suits head-and-shoulders portraits with flattering perspective and creamy backgrounds.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources