Originally posted by reh321 I have NO F-mount lenses. Do we have any idea when a K-mount variant will be available?? Only then will I have any incentive to even think about this thing
Back when I was shopping around for a Cine camera, I emailed Metabones and asked if there any plans to support K-mount lenses, and was told flatly and in no uncertain terms, that they will never support Pentax lenses.
That they made this product for Nikon lenses instead of Pentax lenses means that they must consider the Pentax lenses inferior, or that they expect Q owners to prefer non-Pentax lenses are better.
Fotodiox and their new Tilt-Rokr product, do similar - they made it for Pentax 6x7 lenses, but no K-mount version, Nikon, Canon, Sony versions, but nothing for Pentax camera owners.
Pretty silly logic - who is most likely to buy either the Metabones for Q, and the Tilt-Rokr for 6x7 lenses? - Pentax Camera and Lens owners!
We're more likely to own the lenses and the bodies these product are designed for, so they've ignored the biggest potential markets for them.
(rant Ends)
There is a glaring error in the OP,... the lens used is a Nikkor-S 55mm F/1.2.
This means on a FF camera, its a 55mm.
On the Speedbooster, it
DOES NOT become the quoted 27.5mm lens.
Using the Q7 crop factor of 4.7, the 55mm with straight lens adapter is equivalent to 258.5mm
Data from Metabones site indicates the Q7 with the speedbooster fitted has it's crop factor reduced to 2.3, whereby the 55mm lens becomes the equivalent of a 126.5mm lens.
It is important to note that
no focal reducer (the class of devices the speedbooster brand is)
makes any lens Wider then it's native view angle. Ever.
Focal Reducers lower the percentage of the lens view angle lost due to the crop.