LARGEST & FASTEST 430mm F2.8 about CONVEX CELL LENS / amber rare earth tint /for LARGST FORMAT CAMERA or SCOPE PROJECT.
WILL COVER 8X10"+11X14"+ FORMATS .
DIAMETER of GLASS near D150mm; METAL MOUNT with a DRILLED HOLES near D165mm.
GLASS CLEAN, CLEAR, NO SCRATCHES, NO DEFECTS.