Quote:
Originally Posted by rsimon
I added 2 new pictures to my Infra-red Album. 1 showing no conversion and the other showing it after. I used this picture to show another common problem in Infra-Red photography, using filters, the spot in the middle which is either from the sun or possibly a speck of dust that got on the filter as the picture was taken. The longer time exposures does alow this to happen and I clean the filter prior to every shot and it still happens. The sun is unpredictable since you cannot see it until after the shot has been taken, but sometimes it gives a great effect also, but that is rare.
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The spot is a photo of your lens iris -- so it's not dust. Most likely flare caused by a reflection off of the water.