The SHOTEN EXA-LM R50 is a mount adapter with a helicoid that allows Exakta mount lenses to be used on Leica M mount cameras. When you attach a 50mm focal length lens and operate the focusing ring on the mount adapter, you can focus using the rangefinder of M-type cameras. Additionally, the adapter's focusing ring is equipped with a focusing lever for quick focus adjustments.

Features:

• Supports rangefinder coupling for M-type cameras (for 50mm focal length lenses only)
• When focusing with live view, the helicoid can be used to shorten the minimum focusing distance of the lens
• Fine adjustments of the rangefinder coupling mechanism are possible
• Durable brass mount parts are used on both the lens side and the body side
• Equipped with a focusing lever for rapid operation

Usage:

• When using the rangefinder, set the lens focusing ring to the infinity position and focus with the adapter's focusing ring.
• For higher accuracy when using the rangefinder:
  1. Attach the adapter and lens to the camera.
  2. Set the adapter's focusing ring to infinity.
  3. Focus the lens to infinity (confirm the focus position using live view or EVF with magnified view).
  4. In this state, using the adapter's focusing ring will allow the rangefinder to operate more accurately.
• If necessary, secure the lens focusing ring with tape or other means.
• If the rangefinder misalignment is not corrected by the above steps, try adjusting the adapter's rangefinder coupling mechanism.

Adapter Adjustment Method:

• If the lens shutter button obstructs the viewfinder, you can resolve it by adjusting the adapter.

Specifications:

• Model: EXA-LM R50
• Compatible Lens Mount: Exakta
• Compatible Camera Mount: Leica M
• Material: Brass and Aluminum Alloy
• Weight: Approximately 82g
• Accessories: Precision screwdriver (for rangefinder coupling cam adjustment)

Cautions:

• The rangefinder will not function properly if lenses other than 50mm focal length are attached.
• The lens shutter button may obstruct the viewfinder. This can be resolved by adjusting the lens mounting position, but please perform the adjustment at your own risk. Refer to the adjustment method details.
• Due to individual differences in lenses, aging, changes in shape due to damage, etc., the fit (tight, loose, slight play, etc.) may differ from the norm, or the lens may not mount.
• Not all compatibility can be guaranteed. Use the adapter at your own risk.
• Due to production lots, the delivered product may differ slightly from the product information.
• SHOTEN is the own brand of ShotenKobo. A one-year warranty is provided for natural failures.