Leica Adapter Ring for Calonox 2

• M43 to M52 interface: connects existing M52 adapters to the M43 x 0.75 thread of the Leica Calonox 2, making it easier to integrate the thermal device into an established clip-on setup.
• Built for Calonox 2: made specifically for the Leica Calonox 2, so the adapter ring serves as the correct mechanical link between the device and compatible mounting hardware.
• Compact conversion solution: this reducing ring adds the required thread transition without changing the handling of the optic more than necessary, which helps keep the setup straightforward in the field.
• Made in Germany: the ring is produced in Germany, reflecting the precise fit and consistent manufacturing expected for an accessory that must mate cleanly with optical equipment.
• Tool included: a dedicated tool is supplied for loosening and fastening the ring securely, which helps with installation and removal when changing between mounting configurations.

About the Leica Accesories Series

Leica Accesories brings together the supporting components that expand how Leica Sport Optics products are used in the field. Within this family, Leica includes practical equipment such as tripod solutions, adapters for binoculars and Rangemaster rangefinders, and mounting components that help integrate optics into a broader hunting or observation setup. The series is not built around one single optical platform; instead, it supports the way different Leica devices are carried, mounted, stabilised, or connected to other equipment.

A clear characteristic of the series is its focus on field usability. Leica developed accessories such as the VH1 and VH2 video heads for observation and digiscoping applications, while other items in the range address tripod mounting and adapter compatibility. In practice, that means the series is aimed at users who want to get more versatility from their optics rather than replace them. For hunting optics and observation equipment alike, Leica accessories are designed with the same emphasis on fit, dependable handling, and compatibility that users expect from the brand’s core sport optics products.

About the Leica Adapter Ring for Calonox 2

The Leica Adapter Ring for Calonox 2 is a purpose-built interface for users who need to connect an existing M52 adapter to the M43 x 0.75 thread of the Calonox 2. Its role is simple but important: it allows the thermal device to work with mounting hardware that would otherwise not fit directly. For hunters and shooters already invested in an M52-based clip-on arrangement, that means less need to replace compatible parts unnecessarily.

Because this accessory is dedicated to the Calonox 2, it is especially useful when adapting the thermal unit to a familiar riflescope mounting workflow. The ring acts as the mechanical bridge between thread standards, helping preserve a clean and practical setup for clip-on use. That matters in the field, where secure fit and repeatable installation are more important than complexity.

Leica includes a tool for securely loosening and fastening the reduction ring, which adds a practical benefit beyond the ring itself. Installation and removal are easier to manage when changing configurations, and the supplied tool helps apply the ring correctly without improvising with unsuitable equipment. As a Made in Germany accessory, it fits the role expected of a precision optics component: small in size, but central to making the overall system work properly.

About Leica

Leica Camera AG traces its history to 1869, when Ernst Leitz took over Carl Kellner’s Optical Institute in Wetzlar. Today the company remains headquartered in Wetzlar, Germany and is known for developing cameras, lenses, and sports optics products. In the sport optics field, Leica’s range includes binoculars, spotting scopes, riflescopes, and rangefinders, reflecting a long-standing focus on precision optical equipment.

Leica’s background in this category reaches back well over a century: Ernst Leitz launched the company’s first binoculars in 1907, the first Trinovid binoculars entered production in 1958, and Leica introduced the Geovid in 1992 as the first binocular with an integrated rangefinder. That heritage is relevant here because it shows Leica’s consistent emphasis on combining optical performance with practical field use, whether in core optics or in the accessories that support them.

Main Features

• Manufacturer: Leica
• Series: Leica Accesories
• Made in: Germany
• Warranty: 2 years
• Compatibility: Leica Calonox 2
• Thread standard: M43 x 0.75 to M52
• Product type: Adapter ring

Warranty

Leica covers this adapter ring for 2 years. This stated warranty period matches the product information for this model and provides defined manufacturer coverage for the accessory.

In the Box

• Leica Adapter Ring for Calonox 2
• Tool for loosening and fastening the reduction ring