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Old 11-December-2006, 09:12 PM
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Default Assistance and advice on astrophotography with a Modified Webcam(Philips SPC 900NC)

Hi there!

When in England I bought myself a telescope and then I read online that some folks use modified webcam's for taking photographs of celestial objects. I bought myself a Philips SPC 900NC also known as the Toucam III. I sent the camera to Julian Palmer (user on QCUIAG) who did an excellent job in modifying it for me(2nd & 3rd attachment).
However because of the bad weather in the UK I shipped my telescope (and all subsequent accessories) straight back to SA and intended to pursue my new favorite hobby when I return. So I never knew of the heartache to follow...

Finally 18months later I returned to SA but soon realized I should have bought all the adapters and eyepieces I needed whilst I was in the UK because it's VERY difficult to get hold of Telescope accessories in South Africa

When I purchased my telescope I received a camera adapter as well but unfortunately this adapter only fits on a SLR camera(1st attachment). I tried to rearrange the adapter's pieces to accompany my modified webcam(6th attachment). I bought some PVC pipes at Builders Warehouse and came up with this solution(4th attachment). Thing is, I can get the adapter I need (known as a Mogg Adapter, 5th attachment) but I'll have to pay $20 for it in the states(excluding postage). That price is a bit hefty for someone in SA, especially for a piece of PVC!

The pictures I took with that setup, was not good at all. Just a blur if anything. I think its because the camera is way to far apart from the telescope's optics and the lens in the middle. Or is it because I left the webcam's lens intact? I mean I could see the photo was taken through a long tube lo! Can anyone please shed some light on this issue. How to modify my setup for better photo quality, OR should I just purchase the Mogg adapter, OR does any South African know where I can get one locally AND If anyone uses a mogg adapter, please tell me if one is able to use a lens with it as well? Because it doesn't look like the Mogg adapter can support one.

Thanks in advance!
Attached Images
File Type: jpg 4 piece SLR camera adapter.JPG (14.5 KB, 21 views)
File Type: jpg Modified Philips webcam_1.JPG (57.1 KB, 21 views)
File Type: jpg Modified Philips webcam_2.JPG (12.6 KB, 16 views)
File Type: jpg My Setup.JPG (20.5 KB, 24 views)
File Type: jpg mogg adaptor.jpg (26.4 KB, 16 views)
File Type: jpg New 2 piece adapter2.JPG (17.5 KB, 19 views)
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Old 12-December-2006, 12:51 AM
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Quote:
Originally Posted by stevenspray View Post
The pictures I took with that setup, was not good at all. Just a blur if anything. I think its because the camera is way to far apart from the telescope's optics and the lens in the middle. Or is it because I left the webcam's lens intact?
I don't think I can help with the adapters, but for the web camera imaging I have done, I do not use the lens on the web camera. The adapter I have screws into the lens threads on the ToUCam Pro and that fits into a 1.25" eyepiece adapter.

HTH,

--Andy
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Old 12-December-2006, 04:01 AM
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Steven,

I use the afocal imaging method whereby I simply position my digital camera in front of the eyepiece and take pics.
http://home.telkomsa.net/mybirding/Afocal.htm
But, from what I have read, most of the webcam users remove the lens from the webcam and use it like Andy does.
If you need any accesories, the best person to contact is Andrie van der Linde at Eridanus Optics in Pretoria. He is very helpful and I have aquired a few excellent accessories from him.

Andrie van der Linde
andrie@eridanusoptics.com

Hope you manage.

Phil
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Old 12-December-2006, 10:09 PM
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Quote:
Originally Posted by andyschlei View Post
I don't think I can help with the adapters, but for the web camera imaging I have done, I do not use the lens on the web camera. The adapter I have screws into the lens threads on the ToUCam Pro and that fits into a 1.25" eyepiece adapter.

HTH,

--Andy
Thanks Andy, so I assume you are using the 'Mogg adapter then. I just can't fathom how I can take photo's of let's say, a Galaxy, without any magnification?? Thanks again!
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Old 12-December-2006, 10:25 PM
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Steven,

I use the afocal imaging method whereby I simply position my digital camera in front of the eyepiece and take pics.
http://home.telkomsa.net/mybirding/Afocal.htm
Wow! I never knew that method could actually produce such great pictures.
Below is a photo I took of the moon with my camera mobile(Sony Ericsson k800i) a few weeks back.
I never thought I'd mention this because it seems so unconventional.
Thanks Phil, your help is also greatly appreciated.
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File Type: jpg Moon.JPG (61.2 KB, 20 views)
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Old 13-December-2006, 04:01 AM
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Steven, your moon photo is excellent.
I took the liberty to enhaqnce it a bit by changing the brightness and contrast en sharpen the focus. Then I cleaned it with Noiseware and here is the result. The features on the full moon stand out quite nicely.

Phil
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File Type: jpg Moon_steven2_filtered.jpg (22.3 KB, 18 views)
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Old 13-December-2006, 12:34 PM
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Cool stuff! I hope you don't mind I'm gonna edit my online
blog and substitute my old moon with the new enhanced one you made,
Thanks Phil!
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