OM System's flagship macro for Micro Four Thirds — the 90mm f/3.5 with 2x magnification and IP53 rating.
The OM System M.Zuiko Digital ED 90mm f/3.5 Macro IS PRO was released in 2023 as the flagship macro lens for the Micro Four Thirds system. Providing a 180mm equivalent with true 2x magnification (4x equivalent on MFT), it is the most capable macro lens in any mirrorless system. The PRO designation indicates OM System's highest tier of optical and build quality.
Optical performance is outstanding. Sharpness is exceptional at macro distances. The 2x magnification on MFT's smaller sensor means effective 4x magnification equivalent — revealing microscopic details no other system can match without specialist equipment. Built-in IS works with body IBIS for extremely effective stabilisation. The teleconverter-like effect of MFT amplifies working distance.
Micro Four Thirds mount with IS and IP53 dust and splash protection. Filter thread is 62mm. Weight is approximately 453 grams — remarkably light for the capability. Build quality is outstanding with full weather sealing, freeze resistance to -10°C, and fluorine coatings. The focus limiter switches allow quick adjustment between macro and normal ranges.
Limited used availability as a newer lens. Check IS, AF, and weather seal integrity. The definitive macro lens for serious close-up photographers. The MFT system advantage — extended depth of field at any given aperture plus effective 4x magnification — makes this genuinely unique in the market. No other system can match this specification.