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Alternative Imaging Methods
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Old July 24th, 2005, 11:03 PM   #1
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Has this happened to anyone?

I have been using my own GG for a while now and never switched back to the old frosted GG. With my GG, I don't really have a sweet spot, I can move the camera away and to the GG and the image doesn't blur or go out of focus, but vignetting is present.
Well, I went back to the Frost GG for a test and I found something really weird - now I need a sweet spot. If the DV camera is not the right distance from the GG, it is out of focus - this is weird ! I wonder if it is because the GG I have originally spreads the light out more evenly and with a wider image, whereas the frosted GG has a much great hotspot and the image is smaller, therefore causing my mini DV to have the focus problems and need a sweet spot.
Any ideas?
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Old July 25th, 2005, 09:30 AM   #2
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the only thing I can think of is that you had your camera set on auto focus, and when you went back to the frosted GG, you switched to manual focus.
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Old July 25th, 2005, 10:43 AM   #3
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No, it wasn't that. I am just guessing here about the amount of information to focus on. Not sure exactly what it is...
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Old July 25th, 2005, 11:19 AM   #4
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When I use auto focus, the wax glass is really easy to focus but the ground glass is a bit harder, just don't know why.
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