[vsnet-chat 2497] Re: ST6 - IR Blocking Filter

[Seiichiro Kiyota <skiyota@abr.affrc.go.jp>]

Dear Stan

I checked your image attached to your e-mail.
That ring - rather than fringe - may be ghost caused by reflection around filter. I had similar experience when I used 
filter obtained Murnaghan Instrument. These filters have not good anti-reflection coating.


                        Seiichiro Kiyota


Seiichiro Kiyota
CBA, Tsukuba
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