RE: [APML] 'challenge'

["Steve Barnes" <sbarnes@skyoptics.net>]

Whats all the fuss about anyway? It's sure to be cloudy .... ;)

running and ducking ...........

Steve Barnes

-----Original Message-----
From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
Behalf Of Bert Katzung
Sent: Thursday, December 19, 2002 7:58 PM
To: astro-photo@seds.org
Subject: Re: [APML] 'challenge'


Hi Chris:
Wow---pretty stringent criteria! Seems to exclude multiple exposure eclipse
photos like my
http://www.astronomy-images.com/images/Solarsystem/partial-solar-eclipse-mul
tiexp.htm
in which I superimposed one multiple exposure of the sun with one single
shot of the landscape.
I didn't feel I was cheating in doing that, even though the sun was not in
the FOV when I shot the landscape.
Or did I misunderstand the criteria?  I don't remember the Saturn - moon
paste-up in Astronomy. What issue was it?
Bert

Bert Katzung
katzung1@attbi.com
www.astronomy-images.com

----- Original Message -----
From: "Chris Schur" <cschur@cybertrails.com>
To: <astro-photo@seds.org>
Sent: Thursday, December 19, 2002 2:41 PM
Subject: RE: [APML] 'challenge'


> I have to strongly disagree with those who say its OK to composite an
image
> and think of it as anything like a challenge.  I can do that tonight, with
> an atlas for a guide as to where saturn is going to be, and thats
cheating.
> Wouldnt it be clever, if we could think of a way to REALLY get the image,
> real time?  Not some pasted together fake, but an actual image.  I can
think
> of several ways to do this.  My first thoughts are to shoot with the Ha
> filter and CCD, and determine the maximum exposure in seconds so saturn
just
> doen not saturate.  Than add bunches of those, that can fit within a
narrow
> 10 or 15 minute time frame so saturn does not move very far between shots.
> You will end of with (I hope!) a black and white REAL image, fully
> appreciated by your peers as a worthy effort to the upcomming january 4th
> challenge.
>
> Sorry I feel so strongly about this, but after Astronomy Magazine
published
> the moon-saturn paste up a number of months back, I shudder at the thought
> of what things could come to if this is taken for granted.  I would like
to
> hear others thoughts on this, the use of masks for example during
exposure,
> or whatever.
>
> Ok, shoot me.
>
> Chris Schur
>
> -----Original Message-----
> From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
> Behalf Of Matt BenDaniel
> Sent: Thursday, December 19, 2002 2:00 PM
> To: astro-photo@seds.org
> Cc: direland@drdale.com
> Subject: Re: [APML] 'challenge'
>
>
> Dale,
>
> It depends on the "rules".  You could take a long exposure of the Crab
> before Saturn crosses it.  Then you could take a short exposure of Saturn
> as it crosses.  Assuming you register the images on the stars, would that
> be "fair"?  It can even be accomplished without using any digital
> technologies (although I would).
>
> Matt
>
>
> Dale Ireland said:
> > Saturn passes across the Crab Nebula Jan 3. That should be a real photo
> > "challenge"
> --
> Matt BenDaniel
> http://starmatt.com
>
>
>
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