The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon EF-M 18-150mm F3.5-6.3 and the Canon EF-M 15-45mm F3.5-6.3 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 EF-M 18-150mm F3.5-6.3 is the longer of the two lenses at 87mm. The Canon EF-M 15-45mm F3.5-6.3 with a length of 45mm, is 42mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 61mm.
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Below you can find a scaled side-by-side image of Canon EF-M 18-150mm F3.5-6.3 and Canon EF-M 15-45mm F3.5-6.3 to get a better idea of how their sizes compare in real life.
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 EF-M 15-45mm F3.5-6.3 weighs 130g, 56% (170g) lighter than the Canon EF-M 18-150mm F3.5-6.3's weight of 300g.
Filter Threads
The Canon EF-M 18-150mm F3.5-6.3 has a filter size of 55mm whereas the Canon EF-M 15-45mm F3.5-6.3 has a 49mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 55mm filters that we recommend you to consider for the Canon EF-M 18-150mm F3.5-6.3:
And these are the 49mm filters that we recommend for the Canon EF-M 15-45mm F3.5-6.3:
Lens Mounts
Both the Canon EF-M 18-150mm F3.5-6.3 and the Canon EF-M 15-45mm F3.5-6.3 has the same Canon EF-M lens mount. Some of the latest released cameras that are compatible with the Canon EF-M lenses are Canon M50 II, Canon M200 and Canon M6 MII.
Focal Range
Canon EF-M 18-150mm F3.5-6.3 has a focal range of 18-150mm and
8.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
28.8-240mm when used on a APS-C / DX format camera.
On the other hand, the Canon EF-M 15-45mm F3.5-6.3 has a focal range of 15-45mm and 3.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 22.5-67.5mm when used on a APS-C / DX format camera.