Quote:
Originally Posted by glend
Well Andy, sorry you are clouded out. Thanks for your good wishes.
Hmmm, that is a pretty expensive filter. Cuts through any LP eh? And Hydrogen Beta and OIII are both in the visible band at Blue and Green (turquoise) wave lengths respectively. Perhaps the lights were out in Times Square. Don't believe everything you read in ads.
|
Hi Glen
I didn't read the add I watched the footage by Steven Swancoat (filmmaker) and what David Nagler (Televue) , Dustin Gibson (OPT telescopes), Trevor Jones (Astrobackyard) have said about this filter.
Its like doing narrow band imaging but instead of 4 filter changes just 1 change. Also you technically get 4x the imaging time as there is only 1 filter.
For mono people are using it a a luminance channel.
I was surprised about the Times Square thing too but after listening to podcasts and seeing footage of the outreach programs I have changed my mind. The first time they set up they got closed down by the Anti Terrorism Squad because they forgot to notify anyone about setting up a heap of telescopes and imaging gear. The next time they did the right thing and got the paperwork lodged. Hundreds of people who new nothing about the sky had to pick their jaws of the pavement and kept checking the scopes to see if they were really seeing correct.
Anyway hope you all had a great veiwing last night. Might get a quick one early tonight before the clouds come back.
Cheers to all.
Andy