Simplify your daily shooting setup without compromising on image quality with the TTArtisan AF 40mm f/2 Lens For L-Mount (Full Frame) (Black). Built out of premium, aviation-grade aluminium alloy with a sleek satin black finish, this pocket-sized lens weighs a mere 167 grams. It serves as the ultimate companion for compact full-frame bodiessuch as the Panasonic Lumix S9 or Sigma fpdelivering effortless balance during long days of on-the-go shooting.
The optical configuration features 9 elements arranged in 6 groups, integrating a calculated blend of aspherical, extra-low dispersion (ED), and high-refractive-index glass. This compact array minimizes chromatic aberrations while maintaining biting, reliable contrast across the center of your frame. Powered by a whisper-quiet STM (Stepping Motor) + lead screw drive, the autofocus functions quickly and smoothly. It fully synchronizes with modern L-mount software to support reliable real-time Eye AF and Face Detection tracking during both photography and presentations to the camera.
The barrel comes equipped with a tactile clicked aperture ring that adjusts cleanly in one-third stop increments from a bright f/2 down to f/16, alongside an "A" position for camera-driven automated control. Its wide f/2 maximum aperture allows for sharp, handheld low-light photography without demanding extreme ISO adjustments, transitioning backgrounds into a soft blur rendered by its 7-blade diaphragm. Close-up tasks are streamlined by a practical 40 cm minimum focusing distance. To ensure your gear remains updated, the rear lens cap features an integrated USB-C port, letting you apply seamless, drag-and-drop firmware upgrades straight from your computer desktop.
Technical Specifications
| Parameter | Specification |
|---|
| Brand | TTArtisan |
| Focal Length | 40 mm |
| Lens Mount | Leica L-Mount (Full-Frame Format Coverage) |
| Focusing Type | Intelligent Autofocus (AF) / Manual Focus Override |
| Internal AF Drive | Lead-Screw Stepping Motor (STM System) |
| Maximum Aperture | f/2.0 |
| Minimum Aperture | f/16 |
| Angle of View | 57° |
| Minimum Focus Distance | 40 cm (15.7 inches) |
| Aperture Blades | 7 Diaphragm Blades |
| Optical Path Layout | 9 Glass Elements in 6 Groups |
| Specialized Glass | 1 × Aspherical, 1 × ED, 2 × High-Refractive Lenses |
| Tracking Compatibility | Natively Supports Eye, Face, and Subject Tracking Detection |
| Aperture Ring Design | Clicked Ring with 1/3-Stop Increments & "A" (Auto) Position |
| Filter Thread Diameter | 52 mm |
| Firmware Update System | Data-enabled USB-C Interface built into the Rear Lens Cap |
| Product Weight | Approx. 167 g (5.89 oz) |
| Product Dimensions | Approx. Ø 61.0 mm × 44.0 mm Length |
| Included Accessories | Sturdy metal lens hood, front cap, custom electronic USB-C rear cap |
