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Duclos Lenses Sony FZ mount kit for Fujinon’s new MK zooms

Screen Shot 2017 07 16 at 10.36.57 AM

Duclos Lenses have come up with a Sony FZ mount kit for Fujinon’s new MK zooms. This mount allows users of Sony F3, F5 and F55 cameras to utilise Fujinon’s MK line of zooms.

This mount adapter instantly makes the Fujinon MK zooms a very compelling solution for owners of the F3, F5 and F55. The ability to now use lightweight and affordable cinema glass on these cameras is bound to have owners reaching for their credit cards. To put how significant this is into perspective, you could now buy the Fujinon MK 18-55mm T2.9 and 50-135mm T2.9 zooms and two FZ mount kits for $8398US, which is less than the price of a Zeiss 21-100mm T2.9-3.9 ($9900US), or Fujinon’s own XK 20-120mm T3.5 ($9999US without the servo motor).

The Duclos Lenses solution allows for quick, simple swapping between the factory Sony E mount and the Sony FZ mount. Integrated adjustable back focus allows speedy, accurate tuning of back-focus.

A Canon EF mount kit was originally planned, but it proved to be too expensive

I previously reviewed the Fujinon MK zooms and found them to be great lenses, but they only come in Sony E or Fujinon X mounts. Duclos Lenses did try making a Canon EF mount kit for the MK zooms but the idea was ultimately scrapped. When I spoke to Matt Duclos he told me, “In our efforts to adapt the Fujinon MK line to Canon EF mount, we overcame several hurdles, but simply couldn’t fit the optics into a new housing economically. In order to accommodate a Canon EF mount, we would have had to redesign and manufacture about 20-30% of the lens itself which would have put the final product into a much higher price bracket than we were comfortable with.”

The FZ mount on the Sony F55.

When I asked Matt about why it was possible to make this mount in Sony FZ he said, “The Sony FZ Mount was our next best option given the popularity of Sony’s professional cinema cameras equipped with it. The FZ Mount is a much shallower, wider flange than Canon EF which simply makes it more accepting to non-native lenses. We would have had to reduce the housing by a whopping 26mm in order to make the Canon mount work. In contrast, the Sony FZ Mount only requires an adjustment of 1 millimeter, which made it an even more ideal choice for Fujinon’s MK line.”

Your factory warranty is fully maintained with the conversion kit if you purchase the zooms from Duclos Lenses. The Sony FZ mount kit for Fujinon’s new MK zooms retails for $500US, but you can get it for $400US if you purchase it along with a new Fujinon MK zoom lens from Duclos Lenses. The mount kit is now available to pre-order and it will start shipping in August.

Do you own a Sony F3, F5 or F55? Would you now consider buying the Fujinon MK zooms? Let us know in the comments section below.

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