Olympus ED 8-25mm F4 Pro is an Auto Focus (AF)
Wideangle Zoom lens with FourThirds max sensor coverage and it is designed to be used with Micro Four Thirds mount cameras.
Lens Mount
Olympus ED 8-25mm F4 Pro is compatible with cameras that have
Micro Four Thirds lens mount. Some of the latest released cameras with Micro Four Thirds lens mount are
Panasonic GH5 II,
Olympus E-M10 IV and
Panasonic G100.
Sensor Coverage
Max sensor coverage of Olympus ED 8-25mm F4 Pro is
FourThirds.
Focal Range
Olympus ED 8-25mm F4 Pro has a focal range of 8-25mm and 3.1X zoom ratio.
Optical Image Stabilization
Olympus ED 8-25mm F4 Pro doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).
Body Colour
Olympus ED 8-25mm F4 Pro is available in Black color.
Zoom Method
Olympus ED 8-25mm F4 Pro features
Rotary (extending) zoom method where the length of the lens changes as you zoom in or out. This makes it possible to design the lens with a smaller minimum length ( generally when it is zoomed out) compared to internal zoom lenses. The disadvantages of this design are being harder to seal against dust and moisture, weight balance shifting while zooming and zoom creep in certain lenses.
Maximum Magnification Ratio
Olympus ED 8-25mm F4 Pro has a Max Magnification Ratio of
0.14x and has a minimum focusing distance of
0.23m.
Aperture
Olympus ED 8-25mm F4 Pro is a fixed aperture lens with a constant max aperture of f4 from 8mm all the way to the 25mm .
Optical Formula
Olympus ED 8-25mm F4 Pro's optical formula consists of 16 elements in 10 groups. Following special elements are used in this design:
- 1 DSA
- 1 Super ED
- 1 ED
- 1 HR
- 2 aspherical ED elements
- ZERO coating