Google up " James Ling " he is a friend of mine and fellow iStar owner , he has the 200mm f9 monster .
He is a lovely guy who spends so much time showing the night sky to the public from down town Singapore in his 8 incher .
He would be more than willing to help in any way possible , he is like that , a great guy
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If you check out the 'iStar scope club' ( google it ) and his contact details are there .
Also google 'Singastro' its the Singapore equivalant of our IIS , a great site with plenty of info on what you are looking for .
On a side note it was these guys along with James Ling that tracked down the Non-Existant 'Telescopes.com' warehouse that was supposed to be in Singapore thus proving the site is a scam , there was much talk on this on Cloudy Nites a few years ago , great people just like us that hate scammers
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Brian.