MAKE A MEME View Large Image Lens data claims a 13 element 12 group design, this looks like a 14/9. Assuming the artists mistakenly filled out the central element of the 3rd group (the only fully enclosed air-space), but the number of glass-glass interfaces is still up ...
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Keywords: Lens data claims a 13 element 12 group design, this looks like a 14/9. Assuming the artists mistakenly filled out the central element of the 3rd group (the only fully enclosed air-space), but the number of glass-glass interfaces is still up on the drawing by two.
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