Viltrox AF 15mm F1.7 Air Specs, Equivalents & Depth of Field

15 mm

Focal length

f/1.7

Maximum aperture

111°

Diagonal angle of view (Full frame)

Full frame

Designed for

Specifications#

Brand: Viltrox
Model: AF 15mm F1.7 Air
Lens type: Ultra-wide prime
Focal length: 15 mm
Maximum aperture: f/1.7
Image circle: Full frame (36×24 mm)
Mount(s): Sony E-mount, Fujifilm X-mount, Nikon Z
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 format	At 15 mm	Equiv. aperture (DoF)
Full frame	15 mm · 111°	f/1.7
APS-C	22 mm · 86°	f/2.5
APS-C (Canon)	24 mm · 84°	f/2.7
Micro Four Thirds	30 mm · 72°	f/3.4

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: 16 mm f/1.8 on full frame.

Focal	Aperture	at 1 m	at 2 m	at 5 m	at 10 m	Hyperfocal	Blur @2 m
15 mm	f/1.7	47.0 cm	2.26 m	∞	∞	4.43 m	0.2%
15 mm	f/4	1.45 m	∞	∞	∞	1.89 m	0.1%
15 mm	f/8	∞	∞	∞	∞	95.2 cm	0.0%

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).

Body	Min. handheld shutter (longest focal)	500 rule at 15 mm	NPF at 15 mm, f/1.7
Full frame	1/15 s	33 s	16 s
APS-C	1/25 s	22 s	12 s
APS-C (Canon)	1/25 s	21 s	11 s
Micro Four Thirds	1/30 s	17 s	11 s

Compatible cameras#

Bodies in our database with a native Sony E-mount, Fujifilm X-mount and Nikon Z mount.

Adapt it to other systems#

Nikon Z Nikon 1 (CX)Pentax Q Nikon Z Pentax Q Pentax Q

Similar lenses#

Laowa 15mm f/2.0 Zero-D f/2
Voigtländer 15mm F4.5 Super Wide Heliar Aspherical III f/4.5
Samyang 16mm f/2.0 ED AS UMC CS f/2
Sony FE 16mm f/1.8 G f/1.8
Viltrox AF 16mm F1.8 FE/L/Z f/1.8
Samyang 14mm f/2.8 AE ED AS IF UMC f/2.8
Samyang AF 14mm f/2.8 f/2.8
Sigma 14mm f/1.8 DG HSM | A f/1.8
Sony FE 14mm f/1.8 GM f/1.8
Viltrox AF 14mm f/4.0 f/4
Sigma 17mm F4 DG DN | Contemporary 023 f/4
Viltrox AF 13mm F1.4 f/1.4

Frequently asked questions#

Is the Viltrox AF 15mm F1.7 Air full frame?

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

What is the Viltrox AF 15mm F1.7 Air equivalent to on APS-C?

On a 1.5× APS-C body it frames like 22 mm, and like 24 mm on Canon APS-C.

What is the Viltrox AF 15mm F1.7 Air good for?

As a ultra-wide prime it suits astrophotography, landscapes and dramatic perspectives.

Sources & licences#

Lensfun lens database — CC BY-SA 3.0