The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 10-24mm f3.5-4.5 II LD 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. Tamron 10-24mm f3.5-4.5 II LD is the longer of the two lenses at 84mm. The Canon 8-15mm f4L Fisheye USM with a length of 83mm, is 1mm shorter. Besides being longer, the Tamron 10-24mm f3.5-4.5 II LD also has a larger diameter of 83mm compared to the Canon 8-15mm f4L Fisheye USM's 79mm 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. Tamron 10-24mm f3.5-4.5 II LD weighs 406g, which means it is 134g (24%) lighter than the Canon 8-15mm f4L Fisheye USM which has a weight of 540g.
Below you can find the dimension and weight table of the Wideangle Zoom Lenses in Canon EF Mount for size comparison purposes.
Ultra-Wideangle Lenses in Canon EF Mount for Size Comparison
Lens Mounts
Both the Tamron 10-24mm f3.5-4.5 II LD and the Canon 8-15mm f4L Fisheye USM has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon T8i, Canon 90D and Canon SL3.
Tamron 10-24mm f3.5-4.5 II LD is also available in the Nikon F (DX) , Sony Alpha, Pentax KAF and Canon EF mounts.
Focal Range
Tamron 10-24mm f3.5-4.5 II LD has a focal range of 10-24mm and
2.4X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
16-38.4mm when used on a APS-C / DX 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.
