The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pentax 01 Standard Prime and the Canon 8-15mm f4L Fisheye USM for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Canon 8-15mm f4L Fisheye USM is the longer of the two lenses at 83mm. The Pentax 01 Standard Prime with a length of 23mm, is 60mm shorter. Besides being longer, the Canon 8-15mm f4L Fisheye USM also has a larger diameter of 79mm compared to the Pentax 01 Standard Prime's 46mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Pentax 01 Standard Prime weighs 37g, which means it is 503g (93%) lighter than the Canon 8-15mm f4L Fisheye USM which has a weight of 540g.
Lens Mounts
The Pentax 01 Standard Prime has the Pentax Q lens mount whereas the Canon 8-15mm f4L Fisheye USM has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are , and for the Pentax Q Mount and Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Focal Range
Pentax 01 Standard Prime is a prime lens with fixed focal lenght of 9mm which has an effective (full-frame 35mm equivalent) focal range of
40.95mm when used on a 1/1.7" format camera.
On the other hand, the Canon 8-15mm f4L Fisheye USM has a focal range of 8-15mm and 1.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 12.8 - 24mm.
