The Sigma 100-400mm F5-6.3 DG DN OS Contemporary is a versatile, compact, and lightweight zoom len...The Sigma 100-400mm F5-6.3 DG DN OS Contemporary is a versatile, compact, and lightweight zoom lens designed for L-Mount full-frame mirrorless cameras. It offers professional-level optical performance, rugged build quality, and functionality suitable for wildlife, action, portraits, and close-up subjects thanks to its 1:4.1 magnification ratio. This lightweight (1,135g) lens features built-in image stabilization with a 4-stop advantage and an advanced optical design for sharp images, along with weather sealing. The ultra-telephoto lens with an optical stabilizer (OS) system allows for photography in unstable conditions and enables dramatic perspective compression and flexible background handling. Sigma has incorporated its latest technologies into the 100-400mm F5-6.3 DG DN OS | Contemporary, making it an outstanding combination of optical performance and compactness. (Tripod foot sold separately).
This guide is for photographers using the Sigma 100-400mm F5-6.3 DG DN OS Contemporary lens on L-Mount full-frame mirrorless cameras. The lens offers a versatile zoom range, excellent image stabilization, and sharp image quality in a lightweight package, making it ideal for wildlife, action, and portrait photography. Note that a tripod foot is sold separately.
All features
Brand
Sigma
Extended Product Information
FAQs
What camera brands are compatible with this lens?
This lens is compatible with any L-Mount full-frame mirrorless camera.
Does this lens have weather sealing?
Yes, the Sigma 100-400mm F5-6.3 DG DN OS Contemporary lens has weather sealing.
Can I use teleconverters with this lens?
Yes, it is compatible with Sigma Tele Converters TC-1411 and TC-2011 (L-Mount only).
Is a tripod foot included?
No, the tripod foot is sold separately.
What is the filter size?
The filter size is 67mm.
What is the maximum aperture?
The maximum aperture is f/5 at 100mm and f/6.3 at 400mm.
How do I update the lens firmware?
Firmware updates can be done using the Sigma USB Dock (sold separately) and the Sigma Optimization Pro software.
Troubleshooting
Lens not focusing.
Ensure the lens is set to AF, and the subject has enough contrast for the autofocus to work. Clean the lens contacts.
Images are blurry.
Check if the image stabilization (OS) is enabled. Increase the shutter speed to avoid camera shake. Ensure the subject is in focus.
Lens not recognized by the camera.
Make sure the lens is correctly mounted. Clean the lens contacts on the lens and camera body.
Autofocus is slow.
Ensure there is sufficient light, and the subject has adequate contrast.
OS not working properly.
Ensure the switch on the lens is set to "ON". If the problem persists, try turning the camera off and on again.
Pros and Cons
Pros
Excellent image quality across the zoom range.
Effective image stabilization for handheld shooting.
Relatively lightweight and portable for an ultra-telephoto zoom.
Weather-sealed design for added durability.
Versatile focal length suitable for various shooting scenarios.
Cons
Tripod foot is sold separately.
Maximum aperture of f/6.3 at the long end may limit low-light performance.
No built-in focus limiter.
The focus ring can be a bit sensitive.
Setup, Compatibility & Care
Setup
Mount the Lens: Align the lens mount with the L-mount on your camera body and rotate until it clicks into place.
Power On: Turn on your camera.
Set Mode: Select your desired shooting mode (e.g., Aperture Priority, Shutter Priority, Manual).
Autofocus/Manual Focus: Use the AF/MF switch on the lens to choose your focusing mode.
Image Stabilization: Enable the image stabilization (OS) on the lens or in the camera menu.
Compatibility
Camera Compatibility: This lens is designed for L-Mount full-frame mirrorless cameras.
Teleconverters: Compatible with Sigma Tele Converters TC-1411 and TC-2011 (sold separately, L-Mount only).
Care
Cleaning: Use a soft, lint-free cloth to clean the lens. Avoid excessive pressure.
Storage: Store the lens in a cool, dry place, away from direct sunlight.
Protection: Use a lens cap and UV filter to protect the front element from scratches and dust.