Z3 Setup
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A Flat Port is used commonly for macro lenses
, and also for medium to long focal
length lenses. The focal range that works best starts at approximately 20-35 mm.
Referring to the image,
setup the SPR’s to extend just past the end of the lens. Keep
the entire SPR stack as short as possible while preventing interference with the port.
Test for vignetting and image quality. If necessary, adjust the position of the lens
with respect to the port
by adding or removing SPR’s. Re-test and re-adjust as
necessary to achieve optimum results.
Flat Port and
SPR’s
–
setup the SPR’s so they
extend just past the end
of the lens.
