Re: [APML] June pictures ...

[Dominic Cantin <dominiccantin@yahoo.ca>]

Salut Philippe ,

 

Tres belles images , j'aime vraiement celle de M4 avec Antares ! Je pense que je vais suivre ton sujet car je ne comprend pas vraiement le principe du " Knife Edge Focuser " ... Laisses-tu l'appareil ouvert quand tu utilise cette méthode ?

 

Very beautiful images , I realy like the one of M4 with Antares ! I think I'll follow your topic because I realy don't understand the principle of " Knife Edge Focuser "... Do you let the camera open when you use this method ?

 

Clear skies !

 

Dom :)

Philippe Chretien <apml2@gcesoft.com> wrote:

> Hello,
>
> The month of June has been a good month for the weather up here. You can see my latest pictures there:
> http://www.astrophoto.ca/en/new.html
>
> It seems that my guiding improves a bit but I still have big problems focusing my F4! The Hartmann mask is not precise enough so I
> decided to try knife-edge focusing. I bought an extra OM-1 camera body and made a knife-edge focuser following advices from Jerry
> Lodriguss and Rockett Crawford web sites. You can see the first prototype here: http://www.astrophoto.ca/en/focuser.html
>
> My first attempt using it has not been successful because the filmstrip I used was not flat. I should have seen it before but didn'
> t. Do any of you have a suggestion on a replacement for film as the knife-edge? All advices on knife-edge focussing are very
> welcome!
>
> Thanks and clear skies,
>
> P.
>
> Philippe
>  Chretien
> http://www.astrophoto.ca
>
>
>
>
>
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---

Lèche-vitrine ou lèche-écran ? Yahoo! Magasinage.
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