Capture high-quality images using a full-frame camera with an Canon RF mount with this NiSi ATHENA PRIME 40mm T1.9 Full-Frame Lens. The lens features soft bokeh, micro-contrast control, and low chromatic aberration to highlight image details without distortion. It has a maximum aperture T1.9 and an 80mm front diameter with minimal focus breathing.

The focus ring is capable of rotating 300° for intuitive control. Markings on the lens are fluorescent and in both feet and meters. The lens has a 46mm image circle to capture as many details as possible. An included drop-in filter mount places your lens filters of choice in between your camera sensor and lens body.

Features at a Glance

• Maximum T1.9 aperture for deep depth of view and increased area of focus
• Soft, engaging bokeh 
• 300° focus ring rotation
• Fluorescent markings in feet and meters
• 80mm front diameter, 77mm filter thread
• Drop-in filter mount
• Industry-standard 0.8 MOD focus and aperture rings for use with follow focus systems