Cavision RFD15BM  Basic Mini Single Wheel Follow Focus for Film Cine Lens

Cavision RFD15BM Basic Mini Single Wheel Follow Focus for Film Cine Lens

Cavision RFD15BM Basic Mini Single Wheel Follow Focus for Film Cine Lens

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Product Highlights

  • Entirely Geared Transmission
  • Removable Marking Plate
  • Dual Focus/Zoom Control Option
  • Compact & Lightweight
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Cavision RFD15BM overview

  • 1Description

The Cavision RFD15BM 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.

Note: Rods support not included

Optional Dual Focus/Zoom Control
You can mount two RD15Bs on the same rods support, and then use one for focus control and the other to control zoom.
Removable Marking Plate (Spring Loaded)
A removable marking plate will allow you to mark focus points during rehearsal and then use those points as guides during the actual shoot.
Compact & Lightweight
Like your camcorder, the RFD15BM is designed to be compact and lightweight for easy transport and storage.
In the Box
Cavision RFD15BM Basic Mini Single Wheel Follow Focus for Film Cine Lens
  • 1-Year Warranty
  • Table of Contents
    • 1Description

    Cavision RFD15BM specs

    Construction Aluminum
    Adjustments Gear Position Adjustment: horizontal slide
    Dial Index Adjustment: 360°
    Dial Outside Diameter: 60mm
    Fit Rail Diameter: 15mm
    Fit Rail Distance (center to center): 60mm
    Weight 11.9 oz (338g)
    Packaging Info
    Package Weight 1.0 lb
    Box Dimensions (LxWxH) 5.3 x 4.9 x 3.3"

    Cavision RFD15BM reviews

    RFD15BM Basic Mini Single Wheel Follow Focus for Film Cine Lens is rated 4.4 out of 5 by 19.
    Rated 5 out of 5 by from Well made, cost effective FF I use this FF with my T2i, Nikon primes, Redrock lens gears, and Zacuto SLR base plate and it works great. Using the shorter Nikon primes, its an issue getting the FF close enough to the camera in order to use it. With this FF you can switch which side the gear is on, enabling you to get the FF very close and use shorter lenses. The build quality of this product is very good. Its aluminum construction keeps it light weight for smaller rigs but is heavy duty enough to handle the rigors of everyday shooting. Lastly, the price was perfect for me as an independent film maker. This is the most inexpensive professional FF I've found and I couldn't be happier with it.
    Date published: 2012-01-19
    Rated 5 out of 5 by from Cavision Follow Focus Perfect for DSLRs The RFD158BM was purchased for use on a Canon 5DMII. I use the following lenses with the camera for video production: Zeiss ZE 50mm, Canon L 70-200 f4, and my old Nikkors including a 24mm, 35mm, and 105mm with EOS adapter rings. The first time I put the 5DII on a dolly and had to do a follow focus move, I knew i needed a follow focus system. I wanted to keep the rig as light and compact as possible, so I got the Cavision follow focus. I already had a Cavision DSLR rails system, and this device fits right into that compactness. I wanted to stick with the cine gearing, and for some reason Cavision only makes their cine pitch ring gears in one size. So I bought the Redrock Micro ring gears for all my lenses. The Cavision meshes perfectly with no backlash at all. The unit is compact and heavier than it looks. It's very well built and operates smoothly. Left and right adjustment is solid and easy. Fore and aft is also good but a little more difficult to access the thumbwheel unless you have small fingers. I have enough fore and aft adjustment in the quick release plate to slide the camera as much as needed for most of my lenses, so I don't have to use that thumbwheel much. The only time I need to move the Cavision forward is for the 70-200 lens, which is much longer than my primes. Cavision has made follow focus and rail systems for heavy broadcast cameras for years. They've managed to keep the same high quality in a compact, inexpensive system for DSLR shooting. The drive gear is interchangeable, but the one that comes standard is perfect for still camera lenses. Although my manual Zeiss and the Nikkors have a good focus throw compared to all the Canon L lenses, it's still not great for video. The Cavision drive gear combined with the large Redrock Micro ring gears extend that throw very nicely. On my Nikkor 35mm, I get a full TWO revolutions of the focus wheel from closeup to infinity. There are more expensive systems out there, and of course they are going to be better. But this one feels great, does the job smoothly and looks like it will last a long time. That's why I give it a 5 star rating. The low price tag is a bonus, and so is the fact that it can stay mounted to my rails system when I put it in the case. I don't think there's a better deal for the money.
    Date published: 2010-09-05
    Rated 5 out of 5 by from Worth every penny I took advice from a guy who recommended to use it in tandem w/ Redrock Micro gears and have no regrets I followed. The price of FF is unbeatable, the quality and overall design is pretty solid. Only one suggestion: on Canon 5D Mark II w/ Zeiss ZE lenses follow focus unit barely fits under the lens barrel. If it wasn't for Redrock Micro traction ring's enormous width it'd fail to connect properly. It's peculiarity of Zeiss lens design and Cavision base plate riser that kind of both don't let FF to be moved as close to Canon body as possible. Keep it in mind if you plan to use it w/ Zeiss glass and Cavision rig.
    Date published: 2012-02-01
    Rated 5 out of 5 by from Great product This follow focus is perfect for the low budget film makers such as myself. I needed a follow focus for film making but didnt want to drop the crazy amounts of money so I went with this and it hasnt let me down. I love this follow focus and its very easy to put together especially on my rails. Its horizontal slid is sweet but I wish it could go a little farther outside so more space between lense gear and actually follow focus gear itself. Other than that its a great product and I would recommend it to anyone.
    Date published: 2010-12-23
    Rated 4 out of 5 by from Nice This is the cheapest serious (ie small metal enclosed gearbox) follow focus currently available. The gear is reversable (to the other side of the shaft), and the unit slides in/out (not up/down) to allow contact with our gearing. This version has the standard 0.8 tooth gearing needed for HDSLR rigs. There is a very small amount of slop/backlash (seemingly between the plastic gear and the metal shaft, not from the gearbox itself, but hard to tell for sure) but it's a nice smooth unit, that is metal and more compact than many more expensive models. Mine had a small amount of fine rust between the screw and shaft that hold the gear wheel on, which is a pity, but won't effect performance. Worth spending more to get this, than the home baked entry level FF's out there. Of course there are nicer units, but with remote & USB FF on the horizon, how much do you want to spend now?
    Date published: 2010-09-05
    Rated 5 out of 5 by from Outstanding value If you're looking for a reliable follow focus/zoom control that is versatile enough to be used with DSLR as well as mini-DV camcorders in the field and in the studio, and that doesn't cost a minor fortune, this is it. The build quality is excellent, the movements are silky smooth and precise with a surprisingly minimal degree of backlash, and a profile that is compact enough to be unobtrusive but still allow for easy and comfortable access. The unit is machined in solid aluminum (except for the plastic gear, adjustment knobs and marking plate), but isn't too heavy; it's solid enough to withstand rigorous use. Adjustment knobs are located so that there's no fumbling to get to them. A generous range of horizontal gear position adjustment is provided, and the ability to mount the gear on either end of the axle is a plus. There's a movable marker reference that can be rotated around most of the focus wheel's circumference and locked into place to serve as a fixed reference to marks made on the erasable marking plate. I use the unit in conjunction with a Cavision carbon fiber rod system equipped with 35 cm rods and Red Rock microLensGears rings. A Cavision 18 follow focus whip or Cavision speed crank lever have also proven to be quite useful in some shooting situations. The only feature lacking on this unit is focus wheel stops, but I still award five stars to Cavision because they've managed to produce a reliable and sturdy professional-grade follow focus at an unbelievable price-point. This unit won't disappoint, and is worth serious consideration.
    Date published: 2013-01-01
    Rated 5 out of 5 by from Unbeatable for the money. For the cash this follow focus can't be beat. I am currently using it with Rokinon cine primes and it does the job perfectly.
    Date published: 2014-07-31
    Rated 4 out of 5 by from Works fine I use this on my DSLR camera (Sony A65) along with a follow focus ring that can attach to the focus ring of any lens. This product works very smoothly. Just make sure you have a small allen wrench to tighten/loosen the clamp onto your rails. I like the white ring which allows you to make focus marks. I use a dry erase marker, which will wash off with soap and water.
    Date published: 2012-12-07
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