The Sigma 20mm F1.4 DG DN Art lens is a high-performance, full-frame lens designed for Sony E-moun...The Sigma 20mm F1.4 DG DN Art lens is a high-performance, full-frame lens designed for Sony E-mount cameras. Its wide F1.4 aperture makes it ideal for low-light photography, including astrophotography, as well as versatile photo and video applications. Key features include a manual aperture ring with de-click and lock functionality, a front filter thread and rear filter holder, and a new Manual Focus Lock switch to disable the focus ring. This lens delivers outstanding optical quality and advanced features suitable for astrophotography, landscape, interiors, and movie recording.
Best current price£849.00from London Camera Exchange
The Sigma 20mm F1.4 DG DN Art lens is a high-performance, ultra-wide lens designed for Sony E-mount cameras, ideal for astrophotography and various photo/video applications. Its wide F1.4 aperture allows for excellent low-light performance and shallow depth of field. However, its size and weight may be a consideration for some users. Key features include a manual aperture ring, a front filter thread, and a rear filter holder, making it a versatile tool for photographers and videographers.
All features
Brand
Sigma
Extended Product Information
FAQs
What is the filter size for this lens?
The Sigma 20mm F1.4 DG DN Art lens has an 82mm filter thread.
Does this lens have autofocus?
Yes, this lens has autofocus capabilities.
Can I use this lens on an APS-C camera?
Yes, it is compatible with both full-frame and APS-C sensor cameras.
What is the closest focusing distance?
The closest focusing distance is 0.23 meters.
Does the lens come with a lens hood?
Yes, a petal-shaped lens hood is included.
Is the aperture ring clickless?
The aperture ring can be de-clicked for smooth aperture control, beneficial for video recording.
Is the lens weather-sealed?
Yes, the lens is dust and splash-resistant.
What is the warranty period?
Warranty information is not available in the provided data.
Troubleshooting
Lens is not focusing.
Check the focus mode switch on the lens or camera and ensure it is set correctly. If using autofocus, make sure the subject is in focus range.
Images are not sharp.
Ensure the focus is accurate. Check for camera shake and use a faster shutter speed or a tripod. Also, clean the lens surface from any smudges or dirt.
Aperture ring is not working.
Check the aperture ring lock switch to ensure it is not engaged. If engaged, disable the lock switch to regain control of the aperture settings.
Lens hood is not attaching securely.
Ensure the lens hood is aligned properly and that the locking mechanism is engaged. Check the hood for any damage.
Pros and Cons
Pros
Excellent low-light performance due to the wide F1.4 aperture.
Versatile for various applications, including astrophotography, landscapes, and video.
High-quality optics deliver sharp and detailed images.
Manual aperture ring provides intuitive control.
Compatible with both front and rear filters for creative flexibility.
Durable build with weather sealing for use in challenging conditions.
Cons
Size and weight may be a consideration for some users.
May require a learning curve for users new to manual focus and aperture control.
The wide angle can introduce distortion if not used carefully.
Price point may be higher than some other lenses.
Requires a separate adapter for use with other camera systems.
Setup, Compatibility & Care
Setup
Mounting: Attach the lens to your Sony E-mount camera body by aligning the red dots on the lens and camera and rotating until it clicks.
Focus Mode: Set the focus mode switch on the lens or camera to your desired setting (AF or MF).
Aperture: Adjust the aperture using the manual aperture ring.
Filter Installation: Attach filters to the front filter thread or insert them into the rear filter holder.
Compatibility
Compatible with Sony E-mount cameras.
Full-frame and APS-C sensor compatible.
Care
Cleaning: Use a lens cleaning cloth to gently wipe the front and rear lens elements.
Storage: Store the lens in a dry, cool place when not in use.
Weather Sealing: The lens is dust and splash-resistant, but avoid prolonged exposure to harsh weather.
Lens Hood: Use the included lens hood to minimize lens flare and protect the front element.