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Old 24-11-2010, 04:30 PM
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BlackWidow (Mardy)
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Philips webcam long exposure question

I have just modded an SPC900NC Philips webcam.. I have it plugged into a desktop computer and don't seem to be able to tell if the LX is working. I have set the LPT Port to Normal. I have the Webcams lens still attached. I am assuming that when in long exposure if I image anything in my room for say 30 secs it should produce an over exposed image??? But it does not seem to do so...

Any Ideas or suggestions to get this working would be great


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Mardy
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Old 24-11-2010, 04:56 PM
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ballaratdragons (Ken)
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Hi Mardy,

I used a Modified Philips Webcam for a few years for my DSO imaging.
I have the 840k Pro II ToUcam.

To get it to work you need a Long Exposure capture program and there are a couple out there but I always found the easiest to use was 'Desire', which was designed and written purely for Modified Philips webcams.

I also have a Yahoo group solely for Astrophotography for Miodified Philips webcams.

You will find the link to 'Desire' on the homepage of my Yahoo group.
Directly under the image of Carina Nebula you will see the list of links. Desire is the 1st one, here: http://tech.groups.yahoo.com/group/modifiedtoucam/

It is a very easy program to use.
Just enter how long you weant the exposure to be (in seconds) and go.

You will also need to plug both leads into your PC. The USB controls the camera, and the Parallel controls the long exposure

Your test image, was it totally white or totally black?
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Old 24-11-2010, 05:11 PM
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BlackWidow (Mardy)
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Thanks ballaratdragons for your assistance. I should have mentioned that I have several software packages including full version K3ccdtools and WXastro Capture Etc... I think I may have got a little closer since my post.... I am having trouble getting the software to talk to the camera. It makes it hard to tell where the fault is. Might be my mod has failed. My question is what I should expect from the 9image when LX is activated in the software. I am assuming that long exposure on an image should over expose it when set to times above 20 secs. That is normal daylight images that is..



Cheers
Mardy
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Old 24-11-2010, 05:26 PM
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ballaratdragons (Ken)
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ahhhh, ok Mardy.

Anything more than 1 second should look very over-exposed.
Any past about 5 seconds should be just plain white.
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