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Re: [APML] Provia trails

Thanks for the links Marco. I'd agree with your analysis of the 400 from your shots. They look a little weak in the red. But some of the links to the shots of Takayuki Watanabe may be a bit better but they're still a long way from looking strong in the red.
Bobby Middleton
 
 
Prophesy? This ain't Nostrodamus!
http://www.koyote.com/users/bobm/Prophesy.htm
 
 
----- Original Message -----
 
Hi All, I have just uploaded a couple images taken through my WO 100 f/8 reduced to f/6.4.
M31 is a stack of two images 50  minutes each plus one of 5 minutes used to mask the core.
M33 is a single image of 50 minutes.
The Provia 400F seems to be very sensitive to blue light but not very much to the red one, apart of course from intense light sources (M42, M8...). I am looking to take a couple of exposures of M31 also on E200, in order to better balance it.
I have still to process other images taken on Provia 400F and one is on the Veil Nebula, so I should see its OIII response. Unfortunately these days I am quite often not at home and therefore I don't think I'll put anything online before a couple of weeks.
 
----- Original Message -----
 
   Isn't it Provia 400 F that is all the rage right now in Japan for deep sky work? Has anyone tried this out for deep sky with a telescope?
 
     Tony