I have seen this in different focal length: 400, 600, 800, 1200 mm etc
They can be really heavy, 50, 60 kg.
Mainly used for conference room images projection. I would like to know if there has been tentatives of mounting one of these for picture making. It is evident that a huge camera would have to be constructed for a lens of this kind.
Any confirmed information about will be much appreciated.
Thanks for your contribution.
MAC
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