OM System 40-150mm F4.0 PRO is an Auto Focus (AF)
Telephoto Zoom lens with FourThirds max sensor coverage and it is designed to be used with Micro Four Thirds mount cameras.
Lens Mount
OM System 40-150mm F4.0 PRO is compatible with cameras that have Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are Panasonic GH6, OM System OM-1 and Panasonic GH5 II.
Focal Range
OM System 40-150mm F4.0 PRO has a focal range of 40-150mm and 3.8X zoom ratio which has a 35mm equivalent focal range of 80-300mm when used on a FourThirds format camera.
Weather Sealings
![https://cameradecision.com/lenses/img/other/OM-System-40-150mm-F4.0-PRO-sealing.jpg]()
Weather Sealings of the OM System 40-150mm F4.0 PRO
OM System 40-150mm F4.0 PRO is a weather sealed lens which provides an extra protection to prevent water and dust get inside the lens and camera body under light rain, snow and wind. In order to have an effective protection, you have to pair the OM System 40-150mm F4.0 PRO with a weather sealed camera body such as Panasonic GH6, OM System OM-1 and Panasonic GH5 II.
Optical Image Stabilization
OM System 40-150mm F4.0 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).
Alternatively, you can check the Panasonic 45-150mm F4-5.6 OIS in Micro Four Thirds mount that have similar focal range but features Optical Image Stabilization.
Lenses Similar to OM System 40-150mm F4.0 PRO With Optical Image Stabilization
Zoom Method
OM System 40-150mm F4.0 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
OM System 40-150mm F4.0 PRO has a Max Magnification Ratio of 0.21x and has a minimum focusing distance of 0.7m.
Aperture
OM System 40-150mm F4.0 PRO is a fixed aperture lens with a constant max aperture of f4 from 40mm all the way to the 150mm .
Optical Formula
OM System 40-150mm F4.0 PRO's optical formula consists of 15 elements in 9 groups . Following special elements are used in this design:
- 2 ED lens
- 1 super ED lens
- 1 HR lens
- 2 aspherical lens
![https://cameradecision.com/lenses/img/other/OM-System-40-150mm-F4.0-PRO-optical-structure.jpg]()
Optical Construction of the OM System 40-150mm F4.0 PRO
Lens Hood
OM System 40-150mm F4.0 PRO comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.
Body Colour
OM System 40-150mm F4.0 PRO is available in Black color.
Popular Comparisons of OM System 40-150mm F4.0 PRO
Here is the eight most popular comparisons of OM System 40-150mm F4.0 PRO amongst Camera Decision readers.