The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 70-200mm f2.8 LD and the Canon 70-200mm f4L IS 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 70-200mm f2.8 LD is the longer of the two lenses at 194mm. The Canon 70-200mm f4L IS USM with a length of 172mm, is 22mm shorter. Besides being longer, the Tamron 70-200mm f2.8 LD also has a larger diameter of 90mm compared to the Canon 70-200mm f4L IS USM's 76mm 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. Canon 70-200mm f4L IS USM weighs 760g, 42% (570g) lighter than the Tamron 70-200mm f2.8 LD's weight of 1330g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Canon EF Mount for size comparison purposes.
Telephoto Lenses in Canon EF Mount for Size Comparison
Filter Threads
The Tamron 70-200mm f2.8 LD has a filter size of 77mm whereas the Canon 70-200mm f4L IS USM has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Tamron 70-200mm f2.8 LD:
And these are the 67mm filters that we recommend for the Canon 70-200mm f4L IS USM:
Lens Mounts
Both the Tamron 70-200mm f2.8 LD and the Canon 70-200mm f4L IS USM has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K.
Tamron 70-200mm f2.8 LD is also available in the Nikon F (FX) , Sony Alpha and Pentax KAF mounts.
Focal Range
Both lenses have the same focal range of
70-200mm but while Tamron 70-200mm f2.8 LD has the fastest aperture of
F2.8, the Canon 70-200mm f4L IS USM's widest aperture value is
F4.0.