OM Digital Solutions has released details of the anticipated M.Zuiko Digital ED 90mm f/3.5 Macro IS PRO lens, which was added to the latest lens roadmap last September.
Two views of the new 90mm f/3.5 Macro lens, the lower one showing its internal structure. (Source: OM Digital Solutions.)
Due for release in 2023, the new 90mm f/3.5 Macro lens will cover a field of view equivalent to a 180mm in 35mm format and supports up to twice life size magnification. Up to 4x magnification is possible by adding the optional MC-20 2x teleconverter. Ideal for use in outdoor locations, the new lens boasts the same IP53 standard dust- and moisture resistance as the OM-1 camera. It can also be used is freezing conditions and will function at temperatures as low as -10oC. Its low weight of 453 grams (without the lens caps and lens hood) and length of just 136 mm makes it easy to slip into a lightweight camera pack.
This illustration shows the positions of the weatherproof seals in the new 90mm f/3.5 Macro lens. (Source: OM Digital Solutions.)
The optical design of the new lens contains 18 elements in 13 groups and includes six extra-low dispersion (ED), two of them made from special extra-low dispersion (SED) glass, plus two high-resolution (HR) elements, of which one is a Super HR element. A fluorine coating on front element repels moisture and grease, making the lens easy to keep clean. A seven-bladed iris diaphragm creates a near circular aperture to ensure natural-looking background blurring at wider aperture settings.
This illustration shows the degree of magnification possible with the new lens when used without an additional telecomverter. (Source: OM Digital Solutions.)
In-lens stabilisation, driven by a voice coil motor, ensures easy handheld shooting and up to six stops of shake correction. When the lens is fitted to a compatible camera body with sensor-shift IS, 5-axis sync-IS is supported and the combined camera and lens systems deliver up to seven stops of shutter speed compensation for angular shake along with enhanced shift compensation.
Up to seven stops of shutter speed compensation is available when the lens is combined with a camera that has IBIS. (Source: OM Digital Solutions.)
Like most other PRO series lenses the new 90mm f/3.5 Macro lens features a manual focus clutch, along with purpose-designed autofocusing driven by a Voice Coil Motor for high precision. A focus limiting switch is provided to minimise hunting and enable split-second macro shooting. The minimum focus distance is 22.4 cm, which allows a good working distance when shooting at 2x magnification. Both focus bracketing and focus stacking are supported.
This illustration shows the external controls, which include focus limiter and IS switches plus a programmable function (Fn) button. (Source: OM Digital Solutions.)
The new lens will be supplied with front and rear lens caps, the LH-66E lens hood and the CS-53 wrapping cloth. Optional accessories include the : STF-8 macro flash, Zuiko PRF-ZD62 PRO protective filter andLSC-0914 lens case. The addition of this lens to the existing 30mm and 60mm lenses will bring the line-up of M.Zuiko PRO macro lenses up to three and the range of lenses offering a maximum image magnification of 0.5:1 or more to 11 lenses.
The M.Zuiko Digital ED 90mm f/3.5 Macro IS PRO lens will be available in late February 2023 at an RRP of AU$2249.
Picture angle: 14 degrees
Minimum aperture: f/22
Lens construction: 18 elements in 13 groups (including two SED, four ED, one Super HR and one HR elements plus fluorine coating on front element)
Lens mounts: Micro Four Thirds
Diaphragm Blades: 7 (rounded aperture)
Weather resistance: Yes, IP53 standard rated
Focus drive: Voice Coil Motor
Stabilisation: Yes; in-lens 6 stops, up to 7 stops with 5-axis sync-IS
Minimum focus: 22.4 cm
Maximum magnification: 2x (4x with optional MC-20 2x teleconverter)
Filter size: 62 mm
Dimensions (Diameter x L):69.8 x 136 mm
Weight: 453 grams (without lens caps and hood)
Standard Accessories: Front and end caps, LH-66E lens hood, CS-53 wrapping cloth