Sony FE 100-400mm F4.5-5.6 GM OSS is an Auto Focus (AF)
Super Telephoto Zoom lens with 35mm FF max sensor coverage and it is designed to be used with Sony E mount cameras.
Sony FE 100-400mm F4.5-5.6 GM OSS is a member of Sony's GM series of lenses. GM stands for G Master and represents the top of the line lenses on the Sony E mount line-up. Below you can see the latest lenses in this series.
GM Series Lenses in Sony E Mount
Lens Mount
Sony FE 100-400mm F4.5-5.6 GM OSS is compatible with cameras that have Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A7 IV, Sony ZV-E10 and Sony A1.
Focal Range
Sony FE 100-400mm F4.5-5.6 GM OSS has a focal range of 100-400mm and 4.0X zoom ratio. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 150 - 600mm.
Teleconverter Compatibility
Sony FE 100-400mm F4.5-5.6 GM OSS is compatible with the Teleconverter lenses below:
Sony FE 100-400mm F4.5-5.6 GM OSS Focal Range and Aperture Change with Teleconverter
Weather Sealings
![https://cameradecision.com/lenses/img/other/Sony-FE-100-400mm-F4.5-5.6-GM-OSS-sealing.jpg]()
Weather Sealings of the Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 100-400mm F4.5-5.6 GM OSS 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 Sony FE 100-400mm F4.5-5.6 GM OSS with a weather sealed camera body such as Sony A7 IV, Sony A1 and Sony A7c.
Optical Image Stabilization
Sony FE 100-400mm F4.5-5.6 GM OSS features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.
Sony FE 100-400mm F4.5-5.6 GM OSS MTF Charts
Below you can find the MTF chart of Sony FE 100-400mm F4.5-5.6 GM OSS which would give an idea of the its contrast and resolution from the center to its edges.
![https://cameradecision.com/lenses/img/other/Sony-FE-100-400mm-F4.5-5.6-GM-OSS-mtf-chart-1.jpg]()
MTF Chart of the Sony FE 100-400mm F4.5-5.6 GM OSS
Zoom Method
Sony FE 100-400mm F4.5-5.6 GM OSS 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.
Zoom Lock
Sony FE 100-400mm F4.5-5.6 GM OSS has a Zoom lock feature which eliminates Zoom creep where focal length of the lens changes with gravity when it's held downwards or upwards.
Maximum Magnification Ratio
Sony FE 100-400mm F4.5-5.6 GM OSS has a Max Magnification Ratio of 0.35x and has a minimum focusing distance of 0.98m. For a non-macro lens, the 0.35x is considered a high magnification and will come handy for close-up shots.
Aperture
Sony FE 100-400mm F4.5-5.6 GM OSS is a variable aperture lens with a max aperture of f4.5 and a minimum aperture of f32 at 100mm, and a max aperture of f5.6 and minimum aperture of f40 at 400mm .
Optical Formula
Sony FE 100-400mm F4.5-5.6 GM OSS's optical formula consists of 22 elements in 16 groups . Following special elements are used in this design:
- Two ED
- 1 super ED element
- Fluorine-coated front element.
![https://cameradecision.com/lenses/img/other/Sony-FE-100-400mm-F4.5-5.6-GM-OSS-optical-structure.jpg]()
Optical Construction of the Sony FE 100-400mm F4.5-5.6 GM OSS
Lens Hood
Sony FE 100-400mm F4.5-5.6 GM OSS comes with a removable lens hood which is handy to reduce lens flare and glare in your photos. The model number of the hood is ALC-SH151.
Body Colour
Sony FE 100-400mm F4.5-5.6 GM OSS is available in White color.
Popular Comparisons of Sony FE 100-400mm F4.5-5.6 GM OSS
Here is the eight most popular comparisons of Sony FE 100-400mm F4.5-5.6 GM OSS amongst Camera Decision readers.