N°108646 · Family detail
LensbabyFisheye·CANON EF mount
Lensbaby Circular Fisheye 5.8mm F/3.5
Specifications01
Summary02
Lensbaby Circular Fisheye is a 5.8mm fisheye lens for Canon EF that uses a fixed f/3.5 aperture. It’s intended for creative ultra-wide circular fisheye effects.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Canon EF mount has a flange distance of 44 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Native lenses set the aperture, and often the focus, electronically. On a plain adapter they do not work. Use an electronic adapter made for this pair; for many pairs nobody makes one. Fully manual lenses are the exception.
- Sony EAdapter · 26 mm
The camera mount (46.1 mm) is narrower than the lens mount (54 mm). A large rear element can darken the corners.
- Canon RFAdapter · 24 mm
- Nikon ZAdapter · 28 mm
- Fujifilm XAdapter · 26.3 mm
- L-MountAdapter · 24 mm
The camera mount (51.6 mm) is narrower than the lens mount (54 mm). A large rear element can darken the corners.
- Micro Four ThirdsAdapter · 24.75 mm
- Fujifilm G (GFX)Adapter · 17.3 mm
Covers full-frame: it can vignette on a medium format sensor.
- Canon EF-MAdapter · 26 mm
- Canon EFNative
No plain adapter reaches infinity focus on: Nikon F.

Other Mounts03
This lens family is also indexed in 9 other mounts.
CANON EF-SView lens
Lensbaby Circular Fisheye 5.8mm F/3.5
FUJIFILM XView lens
Lensbaby Circular Fisheye 5.8mm F/3.5
MICRO 4/3View lens
Lensbaby Circular Fisheye 5.8mm F/3.5
MINOLTA/SONY AView lens
Lensbaby Circular Fisheye 5.8mm F/3.5
NIKON FView lens
Lensbaby Circular Fisheye 5.8mm F/3.5
NIKON F DXView lens
Lensbaby Circular Fisheye 5.8mm F/3.5
PENTAX KView lens
Lensbaby Circular Fisheye 5.8mm F/3.5
SAMSUNG NXView lens
Lensbaby Circular Fisheye 5.8mm F/3.5
SONY EView lens
Lensbaby Circular Fisheye 5.8mm F/3.5