The Cavision RFD15BF is a Basic Mini Single Wheel Follow Focus mechanism for your mini-DV / prosumer camera. It provides you with a convenient, quick and precise method for controlling the focus on your camera using a knob on the side of the camera without the need to constantly reach over to the front of the lens. Follow focus systems have become a staple of professional photographers and videographers needing to frequently adjust a camera's focus according to changing scenes; hence the name "follow" focus.

Compatible w/Cavision Gear Rings    Entirely Geared Transmission    Removable Marking Plate    Dual Focus/Zoom Control Option    Compact & Lightweight

You can mount two RD15Bs on the same rods support, and then use one for focus control and the other to control zoom.

A removable marking plate will allow you to mark focus points during rehearsal and then use those points as guides during the actual shoot.

Like your camcorder, the RFD15BF is designed to be compact and lightweight for easy transport and storage.

Related Questions and Answers

Q: 1. Does anyone find the image from this camera to be grainy? Thinking a setting might be off.

A: If you feel the image is too grainy the first place to start will be with your Gain Settings. Making sure the Automatic Gain Control is off would be the best starting point. You can find out about how to control the gain on page 59 of the manual.https://bit.ly/2zFv8zQ

Q: 2. this Fujinon 4k lens can zoom and focus control in Blackmagic URSA broadcast G2 camera? (with Blackmagic Zoom demand and focus demand)?

A: Yes, you should be able to control your zoom with the Blackmagic Zoom Demand on the Fujinon LA16X8BRM-XB1A 2/3" 4K lens.

Q: 3. IS THIS CONSIDERED A B4 LENS?

A: Yes, that is indicated by the '2/3"', which is the sensor size for cameras with a B4 mount.

Q: 4. What cable extender do I need to install the BMD Zoom demand and BMD Focus demand for the BM Ursa Broadcast Camera on a 20 foot?

A: Both the Blackmagic Design Focus Demand and the Blackmagic Design Zoom Demand use USB-C cables for communication with the URSA and the Fujinon LA16X8BRM-XB1A 2/3" 4K Lens with Servo for Blackmagic URSA Broadcast, so a 20ft USB-C cable would be what you will need.

Q: 5. Does this kit include and batteries and/or AC power adapter?

A: No, it does not. That is because customers who buy these camcorders often already have the appropriate batteries and do not need extras. Here is an excellent 2 battery-1 charger-AC Power kit for this camcorder. Core SWX XP-L90A Anton Bauer Gold Mount Battery and Charger Kit B&H # COXPL90AK (B&H Kit) Core SWX's GP-2LAJ 2-Bay Gold Mount Simultaneous Charger can either charge two Gold Mount batteries, or power a camera system or other studio equipment via its 4-pin XLR 16V output.

Q: 6. DOES THIS COME WITH THE FOCUS AND ZOOM KNOBS THAT CAN BE ATTACHED TO THE TRIPOD ARM? IF NOT, WHAT ARE THOSE PART NUMBERS? Thank you!

A: It does not, but a compatible system is this Fujinon kit https://bhpho.to/3iyOiL7

Q: 7. Is there a compatable 2x lens that will fit this camera?

A: You can purchase a 1/3 bayonet mount 2x extender which will fit between the lens and camera. A great option for this is the Century Precision Optics 2x Extender for 1/3 Bayonet Mount.

Q: 8. If I wanted to go with a different viewfinder than the JVC viewfinder on this website what size mount would I need to mount it on the camera?

A: If you remove the JVC viewfinder, you will see the rail that it mounted on. That rail is not a known standard though other brand cameras do have similar if not identical ones. It would have to be measured to see if there is anything available 3rd party. At the moment we can only recommend viewfinder brackets that attach via 15mm rods. Please see example below.

Q: 9. Will this camera output via a BNC 720P ?

A: Yes, 720P can be outputted from the SDI connection.

Q: 10. Do the #CINSTUDMFT/H/FD and #CINSTUDMFT/H/FZD work with this lens when using the #CINEURSAMWC6KG2 and #CINEURSAMUPROTPL?

A: No, the Blackmagic Design Focus Demand, the Blackmagic Design Zoom Demand are not compatible with the Fujinon XK20-120mm T3.5 Cabrio Lens (PL Mount), not matter which camera you pair it with.