FILTER WHEEL
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The current filter wheel has J, H, H+ND, K', K'+ND and a blocker; where
ND = 5% neutral density filters. Please rotate the wheel CLOCKWISE,
and gently.
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It appears that selecting different filters does not have a strong effect
on the positions of the beams on the nicmos. However, to be cautious, I
usually double check from time to time that this is really the case.
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