The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron AF 18-270mm f3.5-6.3 II VC LD and the Canon 18-200mm f3.5-5.6 IS 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 18-200mm f3.5-5.6 IS is the longer of the two lenses at 102mm. The Tamron AF 18-270mm f3.5-6.3 II VC LD with a length of 101mm, is 1mm shorter. On the other hand, the Tamron AF 18-270mm f3.5-6.3 II VC LD has a larger diameter of 80mm compared to the Canon 18-200mm f3.5-5.6 IS'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 AF 18-270mm f3.5-6.3 II VC LD weighs 560g, which means it is 35g (5%) lighter than the Canon 18-200mm f3.5-5.6 IS which has a weight of 595g.
Filter Threads
Both the Tamron AF 18-270mm f3.5-6.3 II VC LD and the Canon 18-200mm f3.5-5.6 IS have the same Filter thread size of 72mm.
Below are links to the 72mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Tamron AF 18-270mm f3.5-6.3 II VC LD has the Nikon F (DX) lens mount whereas the Canon 18-200mm f3.5-5.6 IS has the Canon EF-S lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount and Canon T8i, Canon 90D and Canon SL3 for the Canon EF-S Mount.
Tamron AF 18-270mm f3.5-6.3 II VC LD is also available in the Canon EF mount.
Focal Range
Tamron AF 18-270mm f3.5-6.3 II VC LD has a focal range of 18-270mm and
15.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
27-405mm when used on a APS-C / DX format camera.
On the other hand, the Canon 18-200mm f3.5-5.6 IS has a focal range of 18-200mm and 11.1X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 28.8-320mm when used on a APS-C / DX format camera.
