SHOTEN LM-LSL M BF Lens mount adapter ring - Leica M mount lens to L mount camera (Leica SL) Macro Focus Helicoid close focus (Matte Silver)

The SHOTEN LM-LSL M BF is a helicoid mount adapter that allows you to use Leica M mount lenses on L-mount cameras from Leica, Panasonic and SIGMA. With up to 6 mm of helicoid extension, it shortens the minimum focusing distance and lets you move closer to your subject for more expressive close-up shots. The precisely tuned helicoid offers smooth, low-play operation and a refined, tactile focusing feel.

This model is a Special Edition featuring a bead-blasted “Bead Finish” matte silver exterior. The decorative ring is precisely machined, and the bead-blast process takes around five times longer than the standard finish. Attention to details such as edge chamfering, controlling steps and refining the overall form results in a mount adapter that pursues clean, sculptural aesthetics.

The body is made from a high-strength aluminum-magnesium alloy (Al-Mg) with an appropriate surface treatment to improve abrasion, corrosion and scratch resistance. Brass parts are used on the mount surfaces to ensure high rigidity and precise mounting accuracy.

Perfect for users who want to get more out of their Leica M lenses on L-mount cameras, combining close-focus capability, premium build quality, and a sophisticated matte silver look that pairs beautifully with matching camera bodies and lenses.

Main Features

  • Leica M to L-mount helicoid adapter
    Mount Leica M lenses on L-mount cameras (Leica / Panasonic / SIGMA) and expand your creative options with a wide range of classic and modern M-mount lenses.

  • Shorter minimum focusing distance
    Built-in helicoid with up to 6 mm extension shortens the minimum focusing distance, allowing you to step closer to the subject for tight compositions and expressive close-ups.

  • Smooth helicoid with focus lever & infinity click
    The precisely adjusted helicoid features minimal play and smooth, damped movement. A dedicated focus lever makes extension control easy, and a click at the infinity position helps prevent unintentional helicoid extension during transport or operation.

  • High-rigidity mount & lightweight, durable body
    Brass mount parts provide high rigidity and accurate mounting. The aluminum-magnesium alloy body achieves both durability and light weight, making it suitable for everyday use and demanding shooting environments.

  • Premium matte silver “Bead Finish” special edition
    Bead-blasted matte silver finish (Bead Finish) offers a refined, high-end look. The same-tone pairing with silver camera bodies and lenses delivers a strong sense of visual unity and premium feel.

Specifications

  • Product name: SHOTEN Mount Adapter LM-LSL M BF (Special Edition / Matte Silver)

  • Lens mount (lens side): Leica M

  • Camera mount (body side): L-mount (Leica / Panasonic / SIGMA)

  • Function: Helicoid extension (maximum extension: approx. 6 mm)

  • Size: Approx. φ65 × 9 mm

  • Weight: Approx. 76 g

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