A truly unique lens mount conversion kit for the Fujinon MK 18-55mm Cinema Zoom Lens, that allows it to work on RED DSMC1, DSMC 2 & Ranger Cameras.
*Coming soon* Fujinon MK 50-135mm Cinema Zoom Lens conversion kit
The Fujinon MK to RED DSMC Conversion Kit is a one of a kind user-replaceable lens mount kit, specifically designed for Sony-E mount-equipped Fujinon MK 18-55mm Cinema Zoom lenses. In the near future, this kit will also offer compatibility with its counterpart, the Fujinon MK 50-135mm.
To make this lens mount conversion possible, the kit takes advantage of the extra space the RED DSMC1, DSMC2 & Ranger cameras use to house their interchangeable lens mounts. This means that this lens connects to the camera via the 4 threaded holes that would normally connect your lens mount. To make lens changes easy, the mount incorporates 4 custom-designed knurled thumbscrews that are held captive within the mount itself.
There a link to the full assembly guide, next to the image gallery.
The mount however is fully user replaceable and only requires the one screwdriver provided to remove the Sony mount and attach the new one. The conversion takes about 15 minutes to complete, and all of the components can be removed with ease.
The process is also completely reversible and can be swapped back to its original Sony E mount if you require.
This lens mount has been designed with every precaution in place, in order for it to perform as you would expect on a mirrorless mounted camera system.
All key lighting scenarios have been rigorously tested, including veiling glare and also heavy lens flares from small pointed light sources, to ensure it will produce excellent and clean results.
It has been mainly tested on DSMC2 which has the benefit of the integrated light baffle, but testing on DSMC1 cameras has also achieved excellent results.
I do want to mention that this lens mount conversion is really pushing the limits of what is possible and there may be some unforeseen instances where the lens may perform differently from how you may expect.
However under all the testing, including real-world commercial shoots, any small issues I have come across I have amended the design of the mount to correct them.
Yes the kit is designed so that the lens will remain parfocal and will hold focus as you zoom in and out.
The back focus adjustment on the lens will need to be recalibrated to the camera to achieve this.nIf you can't calibrate your lens correctly, it means that your camera's back focus is incorrect.
All REDs have their back focus calibrated from factory, so 99% of the time the back focus on your camera will be correct. if it isn't, don't worry, it's an easy adjustment to make on DSMC1 & DSMC2 cameras.
DSMC1 - Back focus Adjustment Procedure
DSMC2 - Back focus Adjustment Procedure
Many companies have products or creations that go above and beyond what is realistically required and I believe the Fujinon MK Lenses are one of those products. The level of quality and thought truly exceeds what is conventionally expected of a cinema lens at this price point.
There is a fantastic article on Fujinon's website, which interviews the people who created the MK lenses and you get a real sense of their passion, insight and vision, allowing for these lenses to be achieved.
Key takeaways from this article include:
In my opinion, the Fujinon MK lenses represent the best-all-round cinema zooms in their price range. While there are lenses that are faster, or offer coverage for FF sensors, many don't come close to the thought and engineering behind the Fujinon MK zooms. Optically this lens performs incredibly closely to its nearest sibling the FUJINON 19-90mm T2.9, which costs about 10x the price at £30,000 / $35,000
I believe Fujinon's intention was that by fitting these lenses with mirrorless mounts, it would be a way of protecting their higher end lenses. This design limits the conversion to EF, PL, or LPL camera mounts, limiting its use on alot of high-end cinema cameras.
With the goal of maximum strength and usability in mind, these custom-designed thumbscrews were crafted from SS17-4 PH stainless steel.
After testing different materials stainless steel was found to be the strongest material, with the highest sheer force, that would be machinable in such a small form factor.
Tightening up by hand via the built in knurled thumbscrews allows you to securely mount the lens to the camera. They also feature T20 Torx inputs, so you can use a T20 Torx bit to achieve the tightest possible fit.
To ensure the best optical performance when used with RED DSMC1, DSMC2 & Ranger cameras, the mount features an integrated light baffle similar to one found on the original lens mount.
This baffle effectively reduces unwanted internal reflections & additionally on DSMC2 and Ranger cameras, it works in tandem with the built-in internal light baffle housed within the OLPF. This further enhancing lens flare performance.
For the upcoming Fujinon MK 50-135mm conversion kit, an extended light baffle will be included that can be securely attached to the mount. This provides precise control over light spill and minimises internal reflections when using the 50-135mm lens.
Given that the rear of the lens mount is partially exposed to light, it becomes a part of the optical setup.
To make it as optically perfect as possible, a matte black coating has been applied to minimise unwanted internal reflections. This unique matte black finish is achieved through a specialised matte black anodising process which is further reinforced with a unique hardening treatment. This ensures a consistent and durable matte black finish.
However, this coating isn't ideal for the front of the mount, as it's subject to handling and heavier wear and tear, which demands a more durable finish. To solve this issue, the front of the mount goes through a separate process where key parts of the optical setup are masked off and all the remaining areas that will be subject to heavy handling then have a textured powder coating applied.
This is a unique setup and manufacturing process but is essential as it drastically improves both the usability and optical performance of the mount.
The kit comes with all components below:
The Fujinon MK 18-55mm will cover any Super 35mm / 28.5mm diameter image circle.
(WHITE) - Fujinon MK 18-55mm Maximum Lens Projection
(RED) - Gemini Sensor: 4K: FF
(BLUE) - Helium Sensor: 7K 16:9
(GREEN) - Dragon Sensor: 5K 16:9
(GREEN) - Monstro Sensor: 5K 16:9
(PURPLE) - Mysterium Sensor: 4K FF
The lens was set to infinity to produce the smallest image circle possible, the image circle does expand when focused closer and helps increase coverage.
(WHITE) - Fujinon MK 18-55mm Maximum Lens Projection
(RED) - Gemini Sensor: 4.5K 16:9 @ T2.9 > T22
(BLUE) - Helium Sensor: 7K FF @ T2.9 > T16
(GREEN) - Dragon Sensor: 5K FF @ T2.9 > T22
(GREEN) - Monstro Sensor: 5K FF @ T2.9 > T22
(PURPLE) - Mysterium Sensor: 5K 16:9 @ T2.9 > T5.6