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 Leica Macro-Elmar-M 90mm f4 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 90mm F3.5 Macro is the longer of the two lenses at 136mm. The Leica Macro-Elmar-M 90mm f4 with a length of 41mm, is 95mm shorter. Besides being longer, the OM System 90mm F3.5 Macro also has a larger diameter of 70mm compared to the Leica Macro-Elmar-M 90mm f4's 52mm 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. Leica Macro-Elmar-M 90mm f4 weighs 240g, 47% (213g) lighter than the OM System 90mm F3.5 Macro's weight of 453g.
Filter Threads
The OM System 90mm F3.5 Macro has a filter size of 62mm whereas the Leica Macro-Elmar-M 90mm f4 has a 39mm 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 39mm filters that we recommend for the Leica Macro-Elmar-M 90mm f4:
Lens Mounts
The OM System 90mm F3.5 Macro has the Micro Four Thirds lens mount whereas the Leica Macro-Elmar-M 90mm f4 has the Leica M lens mount. Some of the latest released cameras that are compatible with these mounts are OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount and Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount.
Focal Range
Both lenses have the same focal range of
90mm but while OM System 90mm F3.5 Macro has the fastest aperture of
F3.5, the Leica Macro-Elmar-M 90mm f4's widest aperture value is
F4.0.