On Apr 30, 2018, Davoud wrote
(in article ):

I wouldn't invest in a wildlife lens before looking at the soon-to-be-released Questar 5.

While the Questar 5 might well be endowed with fine optics, price, and
reputation, I question just how suitable it would be as a practical wildlife
lens in the field. I am sure it will perform superbly as a terrestrial
spotting scope, but I am also sure that photographers shooting wildlife, from
animals on the move to tracking birds in flight, will find it to be a tad
unwieldly. However, I am also sure that there will be a handful of
photographers prepared to pay the price in cash and/or awkward handling for
that scope just for some strange sort of bragging rights.

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Regards,
Savageduck