Anything's possible, but I'm sure those lenses WOULD have an issue selling themselves. When Canon made the 1200mm f/5.6 lens, they needed a big fluorite element to execute the design. They're the only company who grows fluorite (it's a synthetic crystal). The elements needed would take 18 months to grow. Those same challenges would impact either of the lenses you suggest. If the current 2.8 model is $2500 and the new 1.2 model is $120,000, do you think any would sell?Originally Posted by DSLR_Newbie
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