The type of photography that you are planning to use is an important decision factor. Here we have evaluated the OM System 90mm F3.5 Macro and the Olympus ED 40-150mm F2.8 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. Olympus ED 40-150mm F2.8 Pro is the longer of the two lenses at 160mm. The OM System 90mm F3.5 Macro with a length of 136mm, is 24mm shorter. Besides being longer, the Olympus ED 40-150mm F2.8 Pro also has a larger diameter of 79mm compared to the OM System 90mm F3.5 Macro'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. OM System 90mm F3.5 Macro weighs 453g, which means it is 307g (40%) lighter than the Olympus ED 40-150mm F2.8 Pro which has a weight of 760g.
Filter Threads
The OM System 90mm F3.5 Macro has a filter size of 62mm whereas the Olympus ED 40-150mm F2.8 Pro 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 62mm filters that we recommend you to consider for the OM System 90mm F3.5 Macro:
And these are the 72mm filters that we recommend for the Olympus ED 40-150mm F2.8 Pro:
Lens Mounts
Both the OM System 90mm F3.5 Macro and the Olympus ED 40-150mm F2.8 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 90mm F3.5 Macro is a prime lens with fixed focal lenght of 90mm which has an effective (full-frame 35mm equivalent) focal range of
180mm when used on a FourThirds format camera.
On the other hand, the Olympus ED 40-150mm F2.8 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.