The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon 55-250mm f4-5.6 IS II 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 55-250mm f4-5.6 IS II is the longer of the two lenses at 108mm. The Canon 18-200mm f3.5-5.6 IS with a length of 102mm, is 6mm shorter. On the other hand, the Canon 18-200mm f3.5-5.6 IS has a larger diameter of 79mm compared to the Canon 55-250mm f4-5.6 IS II's 70mm 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 55-250mm f4-5.6 IS II weighs 390g, which means it is 205g (34%) lighter than the Canon 18-200mm f3.5-5.6 IS which has a weight of 595g.
Filter Threads
The Canon 55-250mm f4-5.6 IS II has a filter size of 58mm whereas the Canon 18-200mm f3.5-5.6 IS 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 58mm filters that we recommend you to consider for the Canon 55-250mm f4-5.6 IS II:
And these are the 72mm filters that we recommend for the Canon 18-200mm f3.5-5.6 IS:
Lens Mounts
Both the Canon 55-250mm f4-5.6 IS II and the Canon 18-200mm f3.5-5.6 IS has the same Canon EF-S lens mount. Some of the latest released cameras that are compatible with the Canon EF-S lenses are Canon T8i, Canon 90D and Canon SL3.
Focal Range
Canon 55-250mm f4-5.6 IS II has a focal range of 55-250mm and
4.5X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
88-400mm 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.
