Compare lenses

7Artisans 7.5mm f/2.8 Fisheye II vs Canon RF-S 7.8mm f/4 STM Dual

The 7Artisans 7.5mm f/2.8 Fisheye II and the Canon RF-S 7.8mm f/4 STM Dual side by side, computed from this guide's catalogue.

Which to pick

Pick the 7Artisans 7.5mm f/2.8 Fisheye II if you want a brighter f/2.8 (1.0 stops more light), for dim light and softer backgrounds and a fit on more cameras (155 against 18 in this guide). Pick the Canon RF-S 7.8mm f/4 STM Dual if you want autofocus.

Still torn? Ask the guide about the 7Artisans 7.5mm f/2.8 Fisheye II and the Canon RF-S 7.8mm f/4 STM Dual

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	7Artisans 7.5mm f/2.8 Fisheye II	Canon RF-S 7.8mm f/4 STM Dual
Maker	7Artisans	Canon
Focal length	7.5mm (prime)	7.8mm (prime)
Full-frame equivalent	11mm on APS-C	12mm on APS-C
Maximum aperture	f/2.8brighter	f/4
Made for	APS-C	APS-C
Mounts	Sony E, Fujifilm X, Nikon Z, Canon RF, Micro Four Thirds	Canon RF
Stabilised	no	no
Autofocus	no, manual focus	yesautofocus
Weight	not listed	130 g
Cameras it fits	155 in this guidefits more cameras	18 in this guide

Focal range, in full-frame terms

7Artisans 7.5mm f/2.8 Fisheye II: 7.5mm on APS-C, like 11mm.

Canon RF-S 7.8mm f/4 STM Dual: 7.8mm on APS-C, like 12mm.

Aperture

7Artisans 7.5mm f/2.8 Fisheye II: f/2.8 wide open.

Canon RF-S 7.8mm f/4 STM Dual: f/4 wide open.

Each opening drawn to scale against f/1.4: a smaller f-number lets in more light and blurs the background more.

Field of view

How wide each sees, at each end, on the sensor it was made for.

Cameras they fit

18 cameras in this guide take both, so either works on the same body. In all, the 7Artisans 7.5mm f/2.8 Fisheye II fits 155 and the Canon RF-S 7.8mm f/4 STM Dual 18.