Best OM System Lenses

The best OM System lenses are the M.Zuiko 12-40mm f/2.8 PRO II for general-purpose shooting, the 12-100mm f/4 IS PRO for travel, the 40-150mm f/2.8 PRO for sports and wildlife, and the compact 20mm f/1.4 PRO or 45mm f/1.8 for low-light and portraits.

Best OM System lenses at a glance

Weights are approximate and exclude caps and hoods. Sealing ratings describe the lens and a compatible, properly sealed OM System body used together; they do not make a camera safe to submerge.

Best all-rounder: M.Zuiko 12-40mm f/2.8 PRO II

The 12-40mm f/2.8 PRO II is the strongest default choice for photographers who want one lens for travel, family, street, food and landscape work. Its 24-80mm equivalent range covers the angles most people use, while the constant f/2.8 aperture keeps exposure consistent when zooming.

It has a close-focusing capability that is useful for flowers, details and table-top subjects, and its compact 382g design balances well on OM-1-series and OM-5-series bodies. The limitation is reach: 80mm equivalent is not enough for distant wildlife or field sports. Because it has no optical stabilization, low-light handheld performance depends on the camera body’s stabilization and the subject remaining relatively still.

Best lightweight travel lens: M.Zuiko 12-45mm f/4 PRO

Choose the 12-45mm f/4 PRO when weight matters more than background blur. At only about 254g, it is substantially lighter than the 12-40mm f/2.8 PRO II and still provides a useful 24-90mm equivalent range. It is also unusually capable at close distances, making it a practical lens for meals, souvenirs and travel details.

The trade-off is one stop less light. At the same shutter speed, f/4 receives half as much light as f/2.8. That matters for indoor people photography, but it is less important for daylight landscapes, architecture and scenes where the camera can use its excellent in-body stabilization. This is one of the best OM System lenses for a small, weather-sealed walking kit.

Best one-lens travel solution: M.Zuiko 12-100mm f/4 IS PRO

The 12-100mm f/4 IS PRO covers 24-200mm equivalent, so it can handle interiors, landscapes, portraits, details and distant subjects without a lens change. Its built-in optical stabilization works with compatible bodies through Sync IS, and the combination is particularly useful for static subjects in dim light.

Its 561g weight is reasonable for the range but noticeably heavier than the 12-45mm. The f/4 aperture also cannot separate a subject from a background as strongly as a fast prime or f/2.8 zoom. Pick it when changing lenses is inconvenient or risky; pick the 12-40mm f/2.8 PRO II when indoor light and subject isolation are more important.

Best ultra-wide option: M.Zuiko 8-25mm f/4 PRO

The 8-25mm f/4 PRO provides a 16-50mm equivalent range. That makes it more flexible than a specialist ultra-wide zoom: 8mm is useful for dramatic landscapes, buildings and cramped interiors, while 25mm works for ordinary environmental photographs.

It is a strong choice for architecture and travel video because the zoom range reduces the need to swap between an ultra-wide and standard lens. The f/4 aperture is adequate for daylight and tripod work, but photographers who regularly shoot dark interiors or astrophotography should consider a faster prime or the M.Zuiko 7-14mm f/2.8 PRO.

Best for sports and wildlife: M.Zuiko 40-150mm f/2.8 PRO

The 40-150mm f/2.8 PRO delivers an 80-300mm equivalent field of view with a constant f/2.8 aperture. It is the better choice than the 40-150mm f/4 PRO when you need faster shutter speeds, stronger background separation or reliable performance under stadium and woodland shade.

At approximately 760g, it remains relatively portable for its reach, but it is not a casual pocket lens. It has no optical stabilization, so camera-body stabilization is important for static subjects. For moving subjects, stabilization does not replace shutter speed: begin around 1/1000 second for fast action and raise ISO as needed.

The lighter telephoto alternative

The 40-150mm f/4 PRO weighs about 382g and reaches the same 300mm equivalent angle. It is better for hiking, travel and daylight wildlife. Its f/4 aperture is one stop slower than f/2.8, so the 40-150mm f/2.8 PRO can use half the ISO at the same shutter speed. In bright conditions, the smaller lens is often the more practical choice.

Best long-range wildlife lens: M.Zuiko 100-400mm f/5-6.3 IS II

The 100-400mm f/5-6.3 IS II reaches an 800mm equivalent angle, giving Micro Four Thirds photographers substantial framing power without the size of a full-frame 800mm lens. Its optical stabilization is valuable at the long end, and it is designed for outdoor work with compatible sealed bodies.

The 1,120g weight and relatively modest f/5-6.3 aperture require realistic expectations. In shade or at dawn, shutter speed may force ISO settings higher than with a professional telephoto. For small birds in dim woodland, the M.Zuiko 150-400mm f/4.5 TC1.25x IS PRO is considerably more capable, but it is far heavier and belongs to a specialist budget category.

Best fast primes for low light and portraits

• M.Zuiko 20mm f/1.4 PRO: A 40mm equivalent perspective suits street photography, travel, documentary work and environmental portraits. At 247g, it adds little weight while gaining two stops over an f/4 zoom.
• M.Zuiko 25mm f/1.8: This small 50mm equivalent prime is a sensible, lower-cost choice for everyday photography and indoor scenes. It is not in the PRO weather-sealed class.
• M.Zuiko 45mm f/1.8: Its 90mm equivalent view gives flattering portraits and strong subject separation in a tiny package. It is one of the easiest lenses to recommend for portraits on a budget.
• M.Zuiko 75mm f/1.8: The 150mm equivalent view is excellent for stage performances, compressed portraits and distant details, though it requires more working distance.
• M.Zuiko 90mm f/3.5 Macro IS PRO: This is the specialist option for macro work, with a 180mm equivalent angle, high magnification and lens stabilization. It is more demanding to focus than a general-purpose lens.

Choose by situation rather than by maximum specification

A practical aperture and shutter-speed calculation

Suppose a sports scene allows 1/1000 second at f/2.8 and ISO 1600 with the 40-150mm f/2.8 PRO. Switching to the 40-150mm f/4 PRO loses one stop of light. To keep the same shutter speed, ISO must double from 1600 to 3200. If the action is slower and 1/500 second is acceptable, you gain one stop back and can use ISO 1600 at f/4.

This is why the lighter f/4 lens is ideal for daylight wildlife, while the f/2.8 version earns its extra size at dusk, indoors or whenever motion blur is unacceptable.

Final verdict

For most owners, start with the 12-40mm f/2.8 PRO II. Choose the 12-45mm f/4 PRO for minimum weight, the 12-100mm f/4 IS PRO for maximum convenience, and the 40-150mm f/2.8 PRO when action performance matters. Add a 20mm f/1.4 PRO, 25mm f/1.8 or 45mm f/1.8 when low light, portraits and a smaller camera bag matter more than zoom flexibility.