The 7artisans Photoelectric 50mm f/1.05 L Mount lens has been designed specifically for high megapixel full frame L mount cameras, such as the Panasonic S1H, and is full of great features for videographers:

• Unique, ultrafast f/1.05 maximum aperture great for not only beautiful selective focus but also for ambient lighting scenes for cinema and still imagery.
• De-clicked aperture ring for smooth and silent exposure and depth of field changes while recording.
• Fully manual focus design with depth of field and distance scales for pre and zone focusing techniques.

This lens is a great option for low light scenes, portraits, and a wide variety of filming applications.