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Old 16-10-2015, 12:23 AM
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alpal
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Join Date: Jan 2012
Location: Melbourne
Posts: 3,769
Quote:
Originally Posted by DJScotty View Post
Hi Al,
that's a really nice photo, especially shot from suburban Melbourne.
I am contemplating using a CLS filter in front of my RGB filters as you have done. Will be watching with great interest!
Again, nice image

DJ Scotty

Thanks Scott,
It's been a lot of hard work to get this Newt. going.
I returned the first mirror for a more expensive ONTC type with full report.
The mirror seems to be excellent - a few subframes had stars as small as FWHM of 2.8 arc seconds.
I never changed the focus over the night.
The stars just got better as the elevation went higher.
The carbon fiber tube is great for constant focus.

The CLS-CCD filter is good as I have a whole row of sodium street lamps down the road beside me.
That filter has a sodium light blocker.


cheers
Allan
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