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Trying to Get a Full Solar Disc with Webcam: Help!

Started by astrodad1954, 04/28/2012 01:50PM
Posted 04/28/2012 01:50PM Opening Post
Not sure if I should post here.

I have a Pronto 70.4mm f6.8 that easily shows a full solar disc with a Solarmax 60mm with visual observing. However, the 2 webcams I have have an effective focal length of around 5 mm. The image is about 70-80% of the solar disc. I am trying to use ANY focal reducer that might give me the full disc, but I lack focuser in-travel, I think only by about 3-5 mm.I can't afford a DSLR at this stage, plus I have no skill with DSLR.

Am I screwed? Any experience or thoughts surrounding this appreciated. The interest is imaging the Venus transit.

Cheers. Marc Whitsett
Posted 05/06/2012 01:08PM #1
Marc Whitsett said:

Not sure if I should post here.

I have a Pronto 70.4mm f6.8 that easily shows a full solar disc with a Solarmax 60mm with visual observing. However, the 2 webcams I have have an effective focal length of around 5 mm. The image is about 70-80% of the solar disc. I am trying to use ANY focal reducer that might give me the full disc, but I lack focuser in-travel, I think only by about 3-5 mm.I can't afford a DSLR at this stage, plus I have no skill with DSLR.

Am I screwed? Any experience or thoughts surrounding this appreciated. The interest is imaging the Venus transit.

Cheers. Marc Whitsett


smile Finally able to get a full solar disc on my Pronto [see attached] with a webcam. Thanks everyone for all the help! 8O

Cheers.

Marc

Attached Image:

astrodad1954's attachment for post 144126