I have two lenses that have some unusual properties to them and I'm curious about what these unusual properties do.
The first is a double concave lens but one side is curved more than the other, What does this do ?
And the other is a doublet lens with two lenses glued together, Why ? And the lens surface in the middle is curved more than both of the outside surfaces, What does that do ?
The first is a double concave lens but one side is curved more than the other, What does this do ?
And the other is a doublet lens with two lenses glued together, Why ? And the lens surface in the middle is curved more than both of the outside surfaces, What does that do ?