Product Description:
The Phase One/Mamiya 645DF+ Large Lens Rail is designed to give support and balance to the 645DF+ when used with the larger lenses, stand alone or in combination with 2x Teleconverter or Extension rings. In combination with the Phase One/Mamiya L-bracket, and quick connect type tripod head, it gives the possibility of perfect balance of the camera and lens combination. It is designed to fit the Schneider Kreuznach 2x Teleconverter in combination with the 240mm LS, but will also fit the Teleconverter or Extension tubes with other lenses.

• 2.00 inches long
• One captive style slot
• Double-dovetail design allows for dual clamping surfaces
• Weight 2.6 oz (74g)

Rail Specifications:

• 8.00 inches long
• 1.50 inches wide
• 1/2 inch thick
• Weight: 4.0 oz (112g)
• Engraved metric scale
• 1/4-20 tapped hole in front for lens support or other accessories
• Three captive style slots
• Double-dovetail design allows for dual clamping surfaces
• Two safety stops. This prevents free fall when the clamp is not fully closed (M3 screws)

Clamp (F60b) Specifications:

• 1.00 inches long
• Weight: 1.7 oz (45g)
• Socket it countersunk on top for 1/4-20 or M6 screw, but also threaded 3/8"-16
• Clamp knob is captive. Knob stops at maximum opening - cannot be lost in the field

Clamp (F62) Specifications:

• 2.375 inches long
• Weight: 3.6 oz (103g)
• Two safety stop relief grooves on each side. This precents free fall when the clamp is not fully closed and your plate has safety stops
• Clamp knob is captive. Knob stops at maximum opening - cannot be lost in the field

All Parts:

• Precision C.N.C. machined from 6061-T6 Aluminium
• Made in USA
• Stainless steel hardware
• Black hard coat anodized surface

One modular lens support bracket
One 8 inch rail
One 1.00 inch clamp
One 2.375 inch clamp
Three 1/4-20 - 1/2 captive style screws
Two 1/4-20 - 3/4 mounting screws
Two M3 screws attached to rail
Hex wrenches for all included screws