DR HOLTKAMP AND GREG ROBERTS Thanks for all the valuable inputs and efforts. I am digesting all the advice and have some research to do. In random order some remarks. Greg - 640 x 427 pixels could then be the standard to set the camera to ? - .png format the standard ? - for your work will do at max telephoto. - will do stacking for party pictures. - on a alt/az tracker do you not think this http://shop.technopro.co.za/acuter-allinone-camera-spotter-telescope-mount-p-916.html will be a excellent gift to the wife? Your opinion will be apreciated or are there simpler stuff on the market ? your opinion please. - Dr Holtkamp - I use a 8 Mw green laser parallel to the camera optic axis to aim. It gives a visible beam at night, showing you where the FOV is pointing. It is a simple green laserpointer that you can buy for a handful of dollars nowadays ==== GREAT SOLUTION IN THE MEANTIME. - Thanks will go with high iso and low f-stop. - 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. -will synch and determine actual time for a "15" sec exposure. -I presume nothing to be done about the dead pixels ? - 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. - 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/ ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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