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Laowa Aksen 17.5mm f/1.7 5-10X Ultra Macro APO vs Olympus M.Zuiko 8mm f/1.8 Fisheye PRO

The Laowa Aksen 17.5mm f/1.7 5-10X Ultra Macro APO and the Olympus M.Zuiko 8mm f/1.8 Fisheye PRO side by side, computed from this guide's catalogue.

Which to pick

Pick the Laowa Aksen 17.5mm f/1.7 5-10X Ultra Macro APO if you want coverage of full frame, so it suits the larger-sensor bodies too and a fit on more cameras (219 against 49 in this guide). Pick the Olympus M.Zuiko 8mm f/1.8 Fisheye PRO if you want autofocus; a design for Micro Four Thirds, which usually means smaller and lighter; and a lighter lens (315 g against 570 g).

Still torn? Ask the guide about the Laowa Aksen 17.5mm f/1.7 5-10X Ultra Macro APO and the Olympus M.Zuiko 8mm f/1.8 Fisheye PRO

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Laowa Aksen 17.5mm f/1.7 5-10X Ultra Macro APO	Olympus M.Zuiko 8mm f/1.8 Fisheye PRO
Maker	Laowa	Olympus
Focal length	18mm (macro)	8mm (prime)
Full-frame equivalent	18mm	16mm on Micro Four Thirds
Maximum aperture	f/1.7	f/1.8
Made for	Full frame	Micro Four Thirds
Mounts	Sony E, Nikon Z, Canon RF, L-Mount, Canon EF, Nikon F, Fujifilm X, Micro Four Thirds	Micro Four Thirds
Stabilised	no	no
Autofocus	no, manual focus	yesautofocus
Weight	570 g	315 glighter
Cameras it fits	219 in this guidefits more cameras	49 in this guide

Focal range, in full-frame terms

Laowa Aksen 17.5mm f/1.7 5-10X Ultra Macro APO: 18mm.

Olympus M.Zuiko 8mm f/1.8 Fisheye PRO: 8mm on Micro Four Thirds, like 16mm.

Aperture

Laowa Aksen 17.5mm f/1.7 5-10X Ultra Macro APO: f/1.7 wide open.

Olympus M.Zuiko 8mm f/1.8 Fisheye PRO: f/1.8 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

49 cameras in this guide take both, so either works on the same body. In all, the Laowa Aksen 17.5mm f/1.7 5-10X Ultra Macro APO fits 219 and the Olympus M.Zuiko 8mm f/1.8 Fisheye PRO 49.