The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 15mm F2.8 EX DG Fisheye and the Carl Zeiss Distagon T2,8/15 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. Carl Zeiss Distagon T2,8/15 is the longer of the two lenses at 135mm. The Sigma 15mm F2.8 EX DG Fisheye with a length of 65mm, is 70mm shorter. Besides being longer, the Carl Zeiss Distagon T2,8/15 also has a larger diameter of 103mm compared to the Sigma 15mm F2.8 EX DG Fisheye's 74mm 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. Sigma 15mm F2.8 EX DG Fisheye weighs 370g, which means it is 360g (49%) lighter than the Carl Zeiss Distagon T2,8/15 which has a weight of 730g.
Below you can find the dimension and weight table of the Wideangle Fisheye Prime Lenses in Canon EF Mount for size comparison purposes.
Ultra-Wideangle Lenses in Canon EF Mount for Size Comparison
Lens Mounts
Both the Sigma 15mm F2.8 EX DG Fisheye and the Carl Zeiss Distagon T2,8/15 has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Sigma 15mm F2.8 EX DG Fisheye is also available in Nikon F (FX) , Pentax KAF, Sony Alpha and Sigma SA mounts.
Carl Zeiss Distagon T2,8/15 is also available in Nikon F (FX) mount.
Focal Range
Both lenses have the same focal range of
15mm and the fastest aperture of
F2.8.