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Olympus 300mm f/4 M.Zuiko Digital ED IS Pro Autofocus Lens for MFT (Micro Four Thirds) Black {77} with Built-In Hood, Tripod Mount, without Decoration Ring

Model #380150
  • $2,156.00

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New in box complete with manufacturer's USA warranty. Not previously owned or used.
Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.
Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
EX Excellent
With Caps, Case
$2,156.00
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Olympus 300mm f/4 Pro: 600mm reach in a carry-able package

On Micro Four Thirds, a 300mm f/4 delivers a full-frame equivalent of 600mm, a reach that would require a much larger, heavier lens on any other system. Olympus built this one to Pro-series standards: weather-sealed construction, ED glass to keep chromatic aberration in check at distance, and built-in optical image stabilization that pairs with in-body IBIS on compatible Olympus and OM System bodies for a combined stabilization system that makes hand-holding at extreme telephoto genuinely workable.

The included lens hood locks into place than riding loose in a bag pocket, and the rotating tripod collar lets you switch between horizontal and vertical orientation without dismounting from a head. The 77mm front element threads standard filters, so you're not hunting for specialty sizes. Autofocus is native to the MFT mount, meaning full speed and tracking support on any compatible body.

At 300mm f/4 with 600mm equivalent reach, this lens sits in a category where the weight-to-reach ratio is hard to match in any other system. For photographers who need serious telephoto without building a dedicated carry-on bag around a single piece of glass, that tradeoff is the whole argument.

Who It's For

Wildlife photographers get 600mm equivalent reach with a lens light enough to track moving subjects hand-held, aided by built-in IS weather sealing for field use in rough conditions. Birders specifically benefit from the fast-for-its-class f/4 aperture and AF performance when subjects don't hold still. Travel shooters covering nature or sports on the road get a telephoto that fits in a standard backpack than a roller case. Sideline sports photographers working MFT systems will find the weather-sealed Pro build holds up to the same conditions their bodies are rated for.

Key Features

  • 300mm f/4 with 600mm full-frame equivalent reach on MFT
  • Built-in optical image stabilization compatible with in-body IBIS
  • ED glass elements minimize chromatic aberration at distance
  • Pro-series weather sealing for field durability
  • 77mm filter thread for standard filter compatibility
  • Locking lens hood and rotating tripod collar included
  • Native MFT autofocus with full speed and tracking

FAQ

What's the full-frame equivalent focal length?
300mm on Micro Four Thirds translates to 600mm equivalent on full-frame, giving you serious telephoto reach without the size and weight penalty of a traditional 600mm lens.
Does this lens have image stabilization?
Yes. Built-in optical IS pairs with in-body IBIS on compatible Olympus and OM System bodies for combined stabilization that makes hand-holding at 600mm equivalent workable.
Can you use standard filters on this lens?
Yes. The 77mm filter thread accepts standard filters, so you're not locked into specialty sizes or adapters.
Is autofocus fast on this lens?
Autofocus is native to the MFT mount, meaning full speed and tracking support on any compatible body. No adapter lag or compatibility issues.
What's included with the lens?
The lens ships with a locking lens hood that stays put in a bag and a rotating tripod collar for switching between horizontal and vertical framing without dismounting.
How weather-sealed is this lens?
It meets Olympus Pro-series standards for weather sealing, designed to handle field conditions without leaking.
Who is this lens built for?
Photographers on MFT who need 600mm equivalent reach but refuse to carry a dedicated telephoto bag. The weight-to-reach ratio is the core argument.
SpecificationValue
Focal Length300mm
Max Aperturef/4
MountMicro Four Thirds (MFT)
Filter Thread77 mm
StabilizationBuilt-In IS (Image Stabilization)
Built In HoodYes
Tripod MountYes
Decoration RingNo

This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.

Brand Name Olympus
Filter Size 77mm
Focus Type Autofocus (lens motor)
Lens Mount Micro Four Thirds
Lens Type Telephoto / Long
Max Focal Length 300mm
Min Focal Length 300mm