Tuesday, January 30, 2007

Comet hunt again

I've acquired a 52mm IR pass filter, so I tested it today after lunch, armed only with my IR insensitive DC (KM Z5), nothing could be seen, all images processed fairly heavily:-

An unprocessed shot to show sky condition, pretty good for local standard:-

A shot to show the diffraction pattern of the damaged/recessed dots of the filter:-

Photographs of the filter, showing the recessed dot on both sides:-

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