The type of photography that you are planning to use is an important decision factor. Here we have evaluated the OM System 40-150mm F4.0 PRO and the Olympus ED 12-45mm F4 Pro 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. OM System 40-150mm F4.0 PRO is the longer of the two lenses at 99mm. The Olympus ED 12-45mm F4 Pro with a length of 70mm, is 29mm shorter. Besides being longer, the OM System 40-150mm F4.0 PRO also has a larger diameter of 69mm compared to the Olympus ED 12-45mm F4 Pro's 63mm diameter.
Below you can find a scaled side-by-side image of OM System 40-150mm F4.0 PRO and Olympus ED 12-45mm F4 Pro to get a better idea of how their sizes compare in real life.
Comparison image of the OM System 40-150mm F4.0 PRO and the Olympus ED 12-45mm F4 Pro Size and Weight 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. Olympus ED 12-45mm F4 Pro weighs 254g, 33% (128g) lighter than the OM System 40-150mm F4.0 PRO's weight of 382g.
Filter Threads
The OM System 40-150mm F4.0 PRO has a filter size of 62mm whereas the Olympus ED 12-45mm F4 Pro has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the OM System 40-150mm F4.0 PRO:
And these are the 58mm filters that we recommend for the Olympus ED 12-45mm F4 Pro:
Lens Mounts
Both the OM System 40-150mm F4.0 PRO and the Olympus ED 12-45mm F4 Pro has the same Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 .
Focal Range
OM System 40-150mm F4.0 PRO has a focal range of 40-150mm and
3.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
80-300mm when used on a FourThirds format camera.
On the other hand, the Olympus ED 12-45mm F4 Pro has a focal range of 12-45mm and 3.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-90mm when used on a FourThirds format camera.