Pergear has announced its latest lens, a 10mm F8 fisheye lens for APS-C camera systems that’s not much larger than your standard lens cap.

The pancake fisheye lens is constructed of five elements in four groups, including three extra-low dispersion elements. Despite being incredibly small, Pergear has managed to squeeze a manual focus lever into the frame of the lens (minimum focusing distance is 30cm / 1ft), however F8 is the only aperture you have to work with.

On Fujifilm X mount, Sony E mount and Nikon Z mount, the lens has a 15mm equivalent focal length; on Micro Four Thirds (MFT) camera systems, the lens has a 20mm equivalent focal length. The ultra-compact lens measures 55mm (2.17”) in diameter, 10mm (.39”) thick and weighs just 80g (2.8oz).

The 10mm F8 pancake fisheye lens is currently avaialble to purchase on Pergear’s online shop for $79 (Fujifilm X mount, MFT, Nikon Z mount and Sony E mount.