Lens Summary
Brand: Olympus
Also Known As: Olympus 90-250mm f/2.8
Lens Type: Zoom Lens
Format: Four Thirds
Focus: Autofocus
Lens Mount: Four Thirds
Release Date: 2005-02-17
MSRP Price: $5999
Made in: Japan
Infrared Rating: Good
Production Status: In Production
Lens Description: Sports and nature photographers will love the versatility of this powerful yet easy to handle super-telephoto zoom lens, built specifically for digital photography. Its fast f2.8 aperture and impressive zoom range let you shoot moving subjects with confidence while its splashproof, dustproof design and all-metal barrel construction provide extreme durability in any environment. Three ED glass lenses provide outstanding image quality with optimal resolution and contrast. A built-in computer microprocessor communicates directly with the camera's software to correct lens distortions, shading, and exposure information for even further image accuracy.
Olympus Zuiko Digital ED 90-250mm f/2.8 Specifications
| Lens Specifications | |
|---|---|
| Lens Type | Zoom Lens |
| Focal Length | 90-250mm |
| Mount Type | Four Thirds |
| Format | Four Thirds |
| Compatible Format(s) | Four Thirds |
| Compatible with Teleconverters | No |
| Zoom Ratio | 2.77x |
| Maximum Reproduction Ratio | 1:12.5 |
| Image Stabilization | No |
| Aperture Information | |
| Aperture Ring | No |
| Maximim Aperture | f/2.8 |
| Minimum Aperture | f/22 |
| Maximum Angle of View (APS-C or smaller format) | 14°-5° |
| Optical Information | |
| Lens Elements | 17 |
| Lens Groups | 12 |
| Diaphragm Blades | 9 |
| Extra-Low Dispersion Glass Elements | 3 |
| Focus Information | |
| Focus | Autofocus |
| Built-in Focus Motor | Yes |
| Internal Focusing | Yes |
| Minimum Focus Distance | 2.50m |
| Distance Information | Yes |
| Filter Information | |
| Filter Size | 105mm |
| Accepts Filter Type | Screw-on |
| Physical Characteristics | |
| Weather / Dust Sealing | Yes |
| Mount Material | Metal |
| Tripod Collar | Yes |
| Dimensions | 12.45 x 27.69cm |
| Weight | 3.27kg |
| Other Information | |
| Available in Colors | Black |
Fast-forward to 2021. This 90-250 mm f2.8 4/3 lens mounted with an adapter on either an Olympus OMD EM1 mk2 or EM5 Mk3, both with PDAF focussing by the way, and you have a dream combination of fast telephoto, sharp optics, and 20Megapixel sensor. Even excellent with the 4/3 1.4 teleconverter as well! 4/3 lenses live on and still deliver! with an effective (full frame) 252 – 700mm at f4.0 and with quick auto-focus.
It needs to be mounted on a solid tripod though, and it is preferable to set the cameras for first curtain electronic shutter (in the menu or Super Control panel) and with such a telephoto range a remote shutter release is mandatory to eliminate any possibility of camera movement.
Geoff.