Sounds like you need to buy my Canon EOS CLS Clip filter Martin
I used to use this ALL the time in Kellyville Ridge on the Canon EOS 1000D and it really cleaned up the skyglow and brought out the contrast.
Prior to using it, I took an image of a sunlit a4 piece of paper and set the custom white balance to that shot and then used the custom WB when taking astro photos, to eliminate the blue cast from the CLS filter.
Check it out on the accessories forum
here
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Cheers
Chris
Quote:
Originally Posted by Startrek
Thanks Raymo
Have you ever imaged in Sydney ( mega skyglow )
I took a 2.5 minute test exposure at ISO 800 and the RGB histogram curves ended up on the 2/3 line
The capture screen on BYEOS was like a white sheet
Dropped it down to ISO 400 and took a 2 minute test exposure , histogram curves ended up right on the 1/3 line and screen looked bright but within reason ( I knew Startools could wipe the gradients , vignetting and skyglow away )
You are spot on Raymo regarding the light gathering capability of the new 8” f5 compared to my old 6” f6 ( chalk and cheese )
I’m going to have to re think all my settings in the future for Sydney and at my dark site down the coast
Thanks
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