Sigma

Sigma 24-35mm F2 DG Lens

Lens Filter Size Chart for Sigma Lenses

If you’re looking to add a polarizer, UV, or ND filter to your lens, you’ll need to know the lens diameter/filter size. Here’s a lens filter size chart for Sigma lenses.

Sigma USB Dock UD-01

Using Sigma’s USB Dock for Lens Updates and Tweaking

Sigma has a USB dock for its newer lenses that allows you to update the lens’s firmware and customize some of the lens’s core functions like autofocus and optical stabilization. Here’s how the USB dock works and what you can do with it.

Sigma 35mm f1.4 for Nikon

Sigma 35mm f1.4 for Nikon Hands-on Review

Sigma’s 35mm f1.4 prime lens is a direct competitor to Nikon’s version. But there’s a very big difference in price. Here’s how the Sigma performs in real-world shooting.