Sigma 100-400mm F5-6.3 OS is a Variable aperture Auto Focus (AF)
Super Telephoto Zoom lens with Optical Image stabilization and 35mm FF max sensor coverage, and it is designed to be used with
L Mount cameras .
The Sigma 100-400mm F5-6.3 OS is also available in the Sony E and Fujifilm X mounts.
What type of photography is the Sigma 100-400mm F5-6.3 OS lens good for?
The choice of photography type for which you intend to use the Sigma 100-400mm F5-6.3 OS is a crucial decision factor. Below, we have assessed its suitability for various photography scenarios:
There is only one more lens with the Leica L mount that has the exact same focal and aperture range with the Sigma 100-400mm F5-6.3 OS, the Leica SL 100-400 f5-6.3.
Lenses in Leica L Mount with Same Focal and Aperture Range
Sigma 100-400mm F5-6.3 OS is a member of Sigma's Contemporary series of lenses. Below you can see the latest lenses in this series.
Sigma Contemporary Series Lenses in Leica L Mount
Reasons to Buy the Sigma 100-400mm F5-6.3 DG DN OS Lens
Here we've included a summary of the advantages and disadvantages of the Sigma 100-400mm F5-6.3 DG DN OS lens in a list form to assist you in determining whether it offers the features you need.
Sigma 100-400mm F5-6.3 OS from Amazon B&H PHOTO
Lens Mount
Sigma 100-400mm F5-6.3 OS is compatible with cameras that have a Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE .
Size, Weight and Filter Thread
The size and weight are crucial factors to consider when searching for your next lens. Sigma 100-400mm F5-6.3 OS has a maximum diameter of 86mm and a total length of 197mm when not extended. It weighs 1135g / 40.0 oz .
Check the size of the Sigma 100-400mm F5-6.3 OS when attached to L Mount cameras :
Below, you'll find a scaled side-by-side image comparing the sizes of the Sigma 100-400mm F5-6.3 OS and the Leica SL 100-400 f5-6.3 , offering a better understanding of their dimensions in real life. Check the detailed comparison of these two lenses here .
Comparison image of the Sigma 100-400mm F5-6.3 OS and the Leica SL 100-400 f5-6.3 Size and Weight
Sigma 100-400mm F5-6.3 OS Size
Sigma 100-400mm F5-6.3 OS has a filter thread of 67mm . Below are links to the filters that we recommend you to consider for your Sigma 100-400mm F5-6.3 OS:
You can also check All Leica L Mount Lenses with 67mm Filter Thread Size
Focal Range
Sigma 100-400mm F5-6.3 OS has a focal range of 100-400mm and 4.0X zoom ratio.
Teleconverter Compatibility
Sigma 100-400mm F5-6.3 OS is compatible with the Teleconverters below. With the use of these TC/extenders, you can find how the total focal reach and effective aperture of your Sigma 100-400mm F5-6.3 OS changes below:
Sigma 100-400mm F5-6.3 OS Focal Range and Aperture Change with Teleconverter
Weather Sealings
The Sigma 100-400mm F5-6.3 OS is a weather-sealed lens, which provides extra protection to prevent water and dust get inside the lens and camera body under light rain, snow and wind. In order to have effective protection, you have to pair the Sigma 100-400mm F5-6.3 OS with a weather-sealed camera body such as the Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE .
Optical Image Stabilization
The Sigma 100-400mm F5-6.3 OS features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.
Tripod Collar
With a total length of 197mm and a weight of 1135g, the Sigma 100-400mm F5-6.3 OS is a large lens. Fortunately, it comes with a tripod collar which you can use to attach the lens directly to a tripod or monopod instead of attaching the camera. This connection helps to better balance the lens/kit combination.
Zoom Method
Sigma 100-400mm F5-6.3 OS 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.
Sigma 100-400mm F5-6.3 OS Extended State
Zoom Lock
Sigma 100-400mm F5-6.3 OS 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
Sigma 100-400mm F5-6.3 OS has a Max Magnification Ratio of 0.24x with a minimum focusing distance of 1.1m .
Below are the 3 Super Telephoto Zoom type Leica L mount lens alternatives with highest max magnification ratios :
Aperture
Sigma 100-400mm F5-6.3 OS is a variable aperture lens with a max aperture of f5 and a minimum aperture of f22 at 100mm, and a max aperture of f6.3 and minimum aperture of f29 at 400mm .
Focal Length
Max Aperture
Min Aperture
100mm
F5
F22
400mm
F6.3
F29
Optical Formula
Sigma 100-400mm F5-6.3 OS's optical formula consists of 22 elements in 16 groups . The following special elements are used in this design:
Lens Hood
Sigma 100-400mm F5-6.3 OS comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.
Sigma 100-400mm F5-6.3 OS Lens Hood
Body Colour
Sigma 100-400mm F5-6.3 OS is available in Black color.
Sigma 100-400mm F5-6.3 OS Attached to a camera
Here are the 8 most popular comparisons of the Sigma 100-400mm F5-6.3 OS amongst Camera Decision readers.
Top Alternatives of Sigma 100-400mm F5-6.3 OS Lens
In addition, it would be interesting to check which lenses from other mounts are most commonly compared with the Sigma 100-400mm F5-6.3 DG DN OS.
Top Alternatives of Sigma 100-400mm F5-6.3 OS in Other Lens Mounts
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