Search found 1231 matches

by GUS
Fri May 09, 2014 10:35 am
Forum: Solar Scope Modifications
Topic: Lunt ERF question.
Replies: 8
Views: 1372

Re: Lunt ERF question.

Thanks Merlin, Lunt site says one side broadband AR coated and other side dielectric IR blocking coated.Looked at filter and noticed one side is deep red and other side slightly less red, with a tint of purple.Would it be safe to say the redder side is broadband AR coated.

Thanks.
by GUS
Fri May 09, 2014 9:55 am
Forum: Solar Scope Modifications
Topic: Lunt ERF question.
Replies: 8
Views: 1372

Re: Lunt ERF question.

Thanks Walter, just had a look and could see no arrow. As i do not image, what other way to test-does it matter which side faces sun- is it safe to try visually both ways.

Thanks
by GUS
Fri May 09, 2014 9:43 am
Forum: Solar Scope Modifications
Topic: Lunt ERF question.
Replies: 8
Views: 1372

Lunt ERF question.

I have a lunt 100mm ERF and l am not sure which side to face towards sun as both sides look identical.Any help appreciated

Thanks
by GUS
Fri May 09, 2014 1:26 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Pressure tuned Lunt and temperature
Replies: 17
Views: 3079

Re: Pressure tuned Lunt and temperature

I observe at an elevation of 1050 meters and at temperatures between -5 to 30 degrees with the Ls 60 PT and do not notice much variation due to temperature. In that temperature range the PT tuner is almost completely all the way in with no threads showing,with no detail (apart from sunspots) showing...
by GUS
Thu May 08, 2014 9:27 pm
Forum: This is SolarChat !!
Topic: Favourite eyepiece for HA viewing
Replies: 10
Views: 962

Re: Favourite eyepiece for HA viewing

Thanks guys, have been following this site for about 2 years now, and in that time have learnt a lot from your regular contributors, and I am glad that I finally joined and can contribute to this great site.

Many thanks
GUS.
by GUS
Thu May 08, 2014 1:54 pm
Forum: This is SolarChat !!
Topic: Favourite eyepiece for HA viewing
Replies: 10
Views: 962

Re: Favourite eyepiece for HA viewing

Hi everyone- just joined forum ,I live west of Sydney Australia and have been involved in solar observing since mid 2011 when I bought my first h alpha scope. I am a visual observer and use a lunt 60 PT and also a Coronado solarmax 40.The eyepieces I mainly use are the 20,15,11,8 mm Televue Plossls ...