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Hi Ken. Yes I did download Vspec and I’m learning how to use it. For last few weeks we have awful conditions for astronomy here in Sydney. It may get clear during the daytime but as soon the darkness falls it is like if you draw a curtain over the sky.
I’m wondering if there is any advantage of using SLR lens if I’m going to fit Star Analyser in front of the lens and limit aperture to 25mm, or stick with CS lens that have aperture around 25mm anyhow and have a better F ratio. I also considering purchase of 1/3” CCTV colour camera that will give me better resolution per pixel then 1/2 “ sensor camera I’m currently using. As the meteors become visible at about 100km, 1/2 “ CCD gives me resolution of about 12m per pixel against 1/3” CCD resolution about 9m per pixel (if my calculations are correct!). The trade off is field of view..
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