Re: [APML] M81 in TP

["David Gimenez" <davidanna@jazzfree.com>]

Thanks John
I wonder what could the cause of the spike. The only glass I added to the
f/10 configuration was a B&W clear filter to avoid nitrogen leakage

David Gimenez
Corbera de Llobregat (Spain)
mailto:davidanna@jazzfree.com
http://eureka.ya.com/astrophoto/index.htm

----- Original Message -----
From: "John C. Mirtle" <spampit@shaw.ca>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Wednesday, March 24, 2004 2:58 AM
Subject: Re: [APML] M81 in TP


> Nice one David!
>     The longer focal length brings out some great detail. Nice to see some
> new tech pan images posted! Any idea what causes your single diffraction
> spike??
>
> John Mirtle
> Calgary, Ab. Canada
>
> ----- Original Message -----
> From: David Gimenez
> To: Discussion of Film Astrophotography
> Sent: Sunday, March 23, 1997 12:47 PM
> Subject: [APML] M81 in TP
>
>
> I have posted a new version of my last deep exposure of M81 in TP, using a
> focal length of 3150 mm to increase resolution
> I hope you enjoy it
>
> http://eureka.ya.com/astrophoto/tp-english/m81.htm
>
> David Gimenez
> Corbera de Llobregat (Spain)
> mailto:davidanna@jazzfree.com
> http://eureka.ya.com/astrophoto/index.htm
>
>
>
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