JTZ DP30 Cine Follow Focus 15mm / 19mm Rail System Kit

Professional quick release A/B stops cine follow focus. Release the A/B lock to use as a normal fo...

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OnBuy.comJtz Dp30 Cine Follow Focus Puller 15Mm / 19Mm Rail Sytem Kit For Fs700 C300 C500 Ii Iii Blackmagic Ursa Mini Bmcc Bmpcc 4K 6K A7 A7r A7s Ii 607983198214
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Product Information

Full details

The JTZ DP30 Cine Follow Focus system is designed for filmmakers and videographers who need precise focus control for professional productions. Its key benefit is the flexible A/B stopping feature, allowing for quick, repeatable focus points, while also functioning as a standard follow focus. A caveat is that some accessories, like the handwheel extension arm and individual rod clamp, are sold separately.

All features

BrandJTZ

Extended Product Information

FAQs

What is the primary advantage of the A/B stop feature?

The A/B stop feature allows you to set two specific focus points and then precisely and repeatably pull focus between them, which is essential for cinematic shots and interviews.

Does this follow focus work with still photography lenses?

While it may physically attach to some lenses with a gear ring, it is primarily designed for cinema lenses which have dedicated focus gears. Adapters or specific gearing solutions might be needed for some still lenses.

What lenses are compatible with the included gears?

The kit includes 5 gears of different sizes, intended to fit a wide variety of cinema lenses with different focus ring diameters. You should select the gear that provides the best meshing with your specific lens.

Can I use this follow focus with my camera without a rod system?

No, this follow focus is designed to mount onto standard 15mm or 19mm camera support rod systems. You will need a compatible rod setup for the follow focus to function.

Are the handwheel extension arm and individual rod clamp included?

No, the handwheel extension arm and the specialized small piece that allows following individual 15mm rods are optional accessories and are not included in the standard kit.

How do I switch between using A/B stops and normal follow focus mode?

You release the A/B lock mechanism on the follow focus unit. This disengages the physical stop markers, allowing the handwheel to rotate freely for standard follow focus operation.

What is the purpose of the rubber gear?

The rubber gear is often used for lenses that may not have a dedicated focus gear. It provides a friction-based grip on the lens's focus ring, allowing for focus control. It's particularly useful for lenses with smooth focus rings.

Troubleshooting

Follow focus is slipping on the lens.

Ensure you are using the correct size gear for your lens. Check that the gear is firmly seated on the lens's focus ring and that the follow focus gear engages properly with the lens gear.

A/B stops are not holding their position.

Verify that the A/B stop locking mechanism is fully engaged. Ensure the internal mechanisms are clean and free from obstructions.

Focus movement is jerky or inconsistent.

Check for debris or damage on the follow focus gears or the lens focus ring. Ensure the unit is securely mounted to the rod system and the handwheel/crank is properly attached.

Unit does not fit the rod system.

Confirm you are using the correct rod spacing (15mm or 19mm) and that the clamping mechanism is fully open before attempting to attach.

Pros and Cons

Pros

  • Versatile A/B stopping and standard follow focus functionality.
  • Compatible with both 15mm and 19mm rod systems.
  • Includes multiple gears for diverse lens types.
  • Modular design allows for future expansion with optional accessories.
  • Comes with a comprehensive set of accessories for immediate use.

Cons

  • Key accessories like the extension arm and individual rod clamp are sold separately.
  • Can be complex for beginners due to its modular nature and features.
  • Requires a compatible 15mm or 19mm rod system to operate.

Setup, Compatibility & Care

Setup:

  1. Mount the follow focus unit onto your camera's 15mm or 19mm rod system. Ensure it is securely locked in place.
  2. Select the appropriate gear for your lens. Attach it to the follow focus drive gear mechanism.
  3. Slide the gear onto the focus ring of your cine lens. Ensure a snug fit without forcing.
  4. Attach the handwheel, whip, or crank to the drive mechanism as desired.
  5. Use the A/B stop markers by adjusting the physical stop markers on the follow focus body to define your focus range.

Compatibility:

  • Rail Systems: Compatible with standard 15mm and 19mm camera support rods.
  • Lenses: Designed for cine lenses with geared focus rings. Includes 5 different sized gears to accommodate various lens diameters.
  • Accessories: Supports optional JTZ DP30 accessories such as the handwheel extension arm and the individual 15mm rod clamp.

Care:

  • Keep the follow focus unit clean and free from dust and debris. Use a soft, dry cloth for general cleaning.
  • Avoid exposing the unit to excessive moisture or extreme temperatures.
  • Periodically check that all screws and mounting points are secure.
  • Store the unit and its accessories in a protective case when not in use.

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