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Old 27-10-2019, 09:35 AM
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doppler (Rick)
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Join Date: Nov 2012
Location: Mackay
Posts: 1,656
Shining the torch at the reflective surface and looking down the barrel will only show dust and even a good mirror will look bad. You need to look "through" the mirror with the light source behind it. This can be hard if a fan is fitted on the rear cell.
Rick
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