46 Optics
Figure 28: PL mount LA-PL-1 with index pin
10.2 Lens Support
Heavy lenses may require additional lens support. This guarantees that the
flange focal depth is not influenced by the lens weight and reduces stress on
the lens mount.
To support a lens use 15mm studio or 19mm studio rods and a fitting lens
bridge. 15mm studio rods require a bridge-plate with 15mm studio rod
support (BP-3/BP-9 + BPA-1), while 19mm studio rods require a bridge-plate
with 19mm studio rod support (BP-12 or BP-5/BP-8 + BPA-1).
The lens bridge LS-10 for 15 mm studio rods is mounted to the rods by
pushing it on the rods from the front, while the lens bridge LS-9 for 19 mm
studio rods is mounted to the rods by pushing it on them from the top.
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