OM System

M.Zuiko Digital ED 300mm F4 IS PRO

Name: OM System M.Zuiko Digital ED 300mm F4 IS PRO
Brand: OM System
Price: 3499 USD
Availability: InStock

Micro Four Thirds · Prime · MICRO FOUR_THIRDS

600mm-equiv. F4 super-telephoto with Sync IS (6 stops), 1475g weight, removable rotating tripod collar, and PRO weather sealing.

$3,499

Launch price

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Last updated June 2026

Key specs at a glance

Focal Length

300 mm

Max Aperture

f/4

Mount

Micro Four Thirds

Coverage

Micro Four Thirds

Stabilization

4 stops

Weight

1475 g

Min Focus

140 cm

Filter Size

77 mm

Where to buy the OM System M.Zuiko Digital ED 300mm F4 IS PRO

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Best for

Use-case scores

Scored algorithmically from verified specs. 10 = best in class.

Portrait

Limited

2.5/ 10

· 9-blade rounded diaphragm creates creamy out-of-focus highlights

Sports & Action

Good

7.0/ 10

· Long telephoto reach (300mm) captures distant sports action
· f/4 aperture is decent for daytime sports

Video & Hybrid

Good

6.0/ 10

· Optical image stabilization is vital for steady handheld panning
· Internal focusing keeps lens length constant and stops rotation

Landscape

Fair

4.0/ 10

· Weather-sealed body protects against dust and rain in the field

Travel

Limited

2.0/ 10

· Weather-sealed body is prepared for varied travel climates

Wildlife

Good

7.5/ 10

· Solid 300mm reach for medium-sized wildlife
· Optical image stabilization is crucial to keep telephoto shots steady

Macro & Close-up

Limited

1.5/ 10

· OIS stabilizes macro shooting, compensating for high-magnification handshake

Pros

✓ Prime design typically delivers strong sharpness and lighter weight
✓ Built-in optical image stabilization
✓ Weather-sealed construction for outdoor shooting

Cons

– Premium price point
– Relatively heavy for extended handheld use
– Slower maximum aperture limits low-light performance

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Full specifications

Verified specs · OM System M.Zuiko Digital ED 300mm F4 IS PRO

Optical Design

Focal length (Min)300 mm

Focal length (Max)300 mm

Max aperture (Wide)f/4

Max aperture (Tele)f/4

Elements17

Groups10

Special elements3 Super ED, 3 HR, 1 E-HR

Focus System

Min focus distance140 cm

Max magnification0.24 ×

Autofocus motorMSC (stepping motor)

Internal focusYes

Image Stabilization

Optical stabilizationYes

OIS effectiveness4 stops

Physical Specs

Weight1475 g

Length227 mm

Diameter92.5 mm

Filter thread size77 mm

Weather sealingYes

Diaphragm blades9

Compatibility

Lens mountMicro Four Thirds

Format coverageMicro Four Thirds

Features

Control ringYes

Custom function buttonYes