Re: SATELLITE PHOTOGRAPHY

From: Marco Langbroek (marco.langbroek@wanadoo.nl)
Date: Tue May 19 2009 - 19:06:00 UTC

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    > - Shutter lag - i am now testing c.fn-12 Canon "Mirror lockup" which 
    > first flips up the mirror then on second press take image. Thus no 
    > shutter lag. Thanks for the advice.
    
    Hi Gerhard,
    
    You *still* will have shutter lag then. I first lock up the mirror, then press 
    the shutter button. That method still sees a lag. It is introduced in the camera 
    itself.
    
    > - i am using cfn-02 Canon "Long exposure noise reduction" . However this 
    > delays the writing to the cf card for nearly the same time of the 
    > exposure. But thats fine.
    
    * don't * do that I suggest. My previous (compact, not DSLR) camera's used such 
    a routine, and I suspected it to be repsonsible for some of the erratic results 
    my previous system put out every now and then. I feel that perhaps sometimes the 
    noise reduction routine "eats" part of the ends of the satellite trails.
    So in my photography, I don't use any noise reduction routine at all anymore.
    
    Good luck!
    
    - Marco
    
    -----
    Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
    e-mail: sattrackcam@wanadoo.nl
    
    Cospar 4353 (Leiden):   52.15412 N, 4.49081 E (WGS84), +0 m ASL
    Cospar 4354 (De Wilck): 52.11685 N, 4.56016 E (WGS84), -2 m ASL
    SatTrackCam: http://home.wanadoo.nl/marco.langbroek/satcam.html
    Station (b)log: http://sattrackcam.blogspot.com
    -----
    
    
    
    
    > - Ps thanks for the silent guide to blogspot.com. Created mine last 
    > night. Excellent to publish this images.
    > 
    > Thanks Gentlemen.
    > 
    > Back to the drawing board.
    > 
    > Gerhard Groenewald
    > 
    > update info http://worldfocus-consultants.blogspot.com/
    > 
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