Manual-focus lens for Sony and Fujifilm

7Artisans 4mm F2.8 Fisheye

4 mm, f/2.8, made for APS-C, focused by hand. It mounts natively, with no adapter, on 21 of our APS-C cameras across 2 mounts; it draws a round picture inside the frame, 225° across in 7Artisans's figures.

Manual focus
4 mm · circular fisheye, 225°
f/2.8 to f/16
201 g
No front thread
Focuses to 9 cm

7Artisans's page for this lens

On your camera

The view and the weight with the camera (battery and card included).

The 21 cameras this lens fits
Camera	Equivalent focal length	Weight with camera	Fit
Sony a6000	6 mm	545 g	Fits; you focus by hand Build a kit Compare lenses
Sony a6100	6 mm	597 g	Fits; you focus by hand Build a kit Compare lenses
Sony a6400	6 mm	604 g	Fits; you focus by hand Build a kit Compare lenses
Sony a6600	6 mm	704 g	Fits; you focus by hand Build a kit Compare lenses
Sony a6700	6 mm	694 g	Fits; you focus by hand Build a kit Compare lenses
Sony ZV-E10	6 mm	544 g	Fits; you focus by hand Build a kit Compare lenses
Sony ZV-E10 II	6 mm	578 g	Fits; you focus by hand Build a kit Compare lenses
Sony FX30	6 mm	847 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-T5	6 mm	758 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-T50	6 mm	639 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-T30 III	6 mm	579 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-T30 II	6 mm	579 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-S20	6 mm	692 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-S10	6 mm	666 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-M5	6 mm	556 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-E5	6 mm	646 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-E4	6 mm	565 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-H2	6 mm	861 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-H2S	6 mm	861 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-T4	6 mm	808 g	Fits; you focus by hand Build a kit Compare lenses
Fujifilm X-Pro3	6 mm	698 g	Fits; you focus by hand Build a kit Compare lenses

Before the first shot

Turn the focus ring until the subject looks sharp; focus peaking (sharp edges outlined in colour) and the magnified view in the viewfinder or on the screen make that easier. The camera cannot set the aperture, so shoot in aperture priority (A or Av) or manual exposure: the camera measures the light through the lens at the aperture you set on its ring. Check the first pictures and correct the exposure if they come out too dark or too light: Sony's guide warns that the camera may not measure the light correctly through a lens without electrical contacts.

Sony: the camera sees no lens attached, so turn on “Release w/o Lens” in its menu, or it will not take a picture. Sony's manual
Fujifilm: the camera sees no lens attached, so turn on “SHOOT WITHOUT LENS” in its menu, or it will not take a picture. Fujifilm's manual

What it frames

A circular fisheye: it draws a round picture inside the frame, with black around it, and straight lines that do not pass through the centre curve. 7Artisans gives its angle of view as 225° on an APS-C camera. It focuses down to 9 cm from the sensor.

Other manual-focus lenses for Sony E, closest in focal length

7Artisans 6mm F2.0220° fisheye · f/2 · 418 g
TTArtisan APS-C 7.5mm F2 Fisheye180° fisheye · f/2 · 343–370 g
7Artisans 7.5mm F2.8 II Fisheye190° fisheye · f/2.8 · 265 g
Samyang 8mm F2.8 UMC Fisheye II180° fisheye · f/2.8 · 265 g
7Artisans 9mm F5.614 mm equiv. · f/5.6 · 463 g
TTArtisan APS-C 10mm F2 ASPH.15 mm equiv. · f/2 · 333–345 g
7Artisans 10mm F3.515 mm equiv. · f/3.5 · 126 g
7Artisans 10mm F2.8 Fisheye15 mm equiv. · f/2.8 · 570 g

Every manual-focus lens

Facts from the makers' specification pages. 7Artisans's specifications. How we check

Questions about this lens

Does the 7Artisans 4mm F2.8 Fisheye autofocus?

No. It is a manual-focus lens: you turn its focus ring and set the aperture on its aperture ring. Sony and Fujifilm cameras take a picture with it only once a setting is turned on: the settings are named under “Before the first shot”.

Which cameras does the 7Artisans 4mm F2.8 Fisheye fit?

21 APS-C cameras in our catalogue: a6000, a6100, a6400, a6600, a6700, ZV-E10, ZV-E10 II, FX30, X-T5, X-T50, X-T30 III, X-T30 II, X-S20, X-S10, X-M5, X-E5, X-E4, X-H2, X-H2S, X-T4, X-Pro3.

What filter size does it take?

No filter thread.

How big is it?

60 mm across and 54 mm long, in 7Artisans's figures.