The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon 35mm f2 IS USM and the Tamron SP 35mm F1.4 Di USD for their suitability to various photography scenarios:
Size and Weight Comparison
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. Canon 35mm f2 IS USM weighs 335g, which means it is 470g (58%) lighter than the Tamron SP 35mm F1.4 Di USD which has a weight of 805g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Canon EF Mount for size comparison purposes.
Wideangle Lenses in Canon EF Mount for Size Comparison
Filter Threads
The Canon 35mm f2 IS USM has a filter size of 67mm whereas the Tamron SP 35mm F1.4 Di USD has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Canon 35mm f2 IS USM:
And these are the 72mm filters that we recommend for the Tamron SP 35mm F1.4 Di USD:
Lens Mounts
Both the Canon 35mm f2 IS USM and the Tamron SP 35mm F1.4 Di USD 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.
Tamron SP 35mm F1.4 Di USD is also available in Nikon F (FX) mount.
Focal Range
Both lenses have the same focal range of
35mm but while Canon 35mm f2 IS USM has the fastest aperture of
F2.0, the Tamron SP 35mm F1.4 Di USD's widest aperture value is
F1.4.