Front view of 5 Teradek RT pre-marked rings standing in the storage box on a stand - 3D Film Parts
5 Teradek RT pre-marked focus rings in the storage box, mounted to the side of a Boom Box - 3D Film Parts
Focus ring storage holding 5 Teradek RT rings on a super clamp on a stand - 3D Film Parts
Top view of the focus ring storage on a super clamp, with 5 Teradek RT rings in their slots - 3D Film Parts
Focus ring storage with 5 Teradek RT rings fitted to the side of a Boom Box front box - 3D Film Parts
Empty black ABS carbon fibre focus ring storage box with stainless and brass threaded inserts - 3D Film Parts
Top view of 5 Teradek pre-marked focus rings sitting in their own slots - 3D Film Parts
Teradek pre-marked focus ring storage box with 5 rings in place, side mounting holes facing front - 3D Film Parts
Teradek pre-marked focus ring storage showing the three Boom Box mounting holes along the side - 3D Film Parts
Teradek pre-marked focus ring storage with stainless steel M5 threaded inserts on the side - 3D Film Parts
Close up of the M5 stainless steel threaded inserts sitting flush in the side wall - 3D Film Parts
Side view of the focus ring storage box with two M5 inserts and 5 rings above the rim - 3D Film Parts
Top down view of the 5 curved ring slots inside the storage box - 3D Film Parts
Angled view into the empty box showing the curved slots that cradle each focus ring - 3D Film Parts
Finished focus ring storage box with M5 inserts on one side and three brass inserts on the other - 3D Film Parts

Teradek Pre-Marked Focus Ring Storage - For Front Box


  • Low stock - 4 items left
  • Inventory on the way
Regular price$89.00
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Shipping calculated at checkout.

Pre-marked rings only save you time if the right one is in your hand when the lens comes off. This holder gives 5 of your Teradek RT pre-marked rings a proper home on your front box, each in its own slot, right where you reach for them.

It is compatible with our Boom Box, and it also works with any standard super clamp, so it is not locked to our front box. The hardware is provided.

WHY IT'S WORTH HAVING AS AN AC

Teradek's lens mapping is built around these rings. One ring covers multiple lenses, so you are not recalibrating after every lens swap. That is the whole point, and you lose it the second you are digging through a pouch for the right ring while everyone waits on the lens change.

  • Right ring, first go. All 5 sit in a row at the front box, so you can see what you have and grab it.
  • Your marks stay clean. Each ring gets its own curved slot, so they are not knocking around against each other or everything else in the box.
  • Nothing goes missing. A loose ring is easy to leave on a cart or on the floor at wrap. Here, an empty slot tells you one is missing before you leave.
  • It stays where you work. It clamps up beside your gear instead of taking up room inside your front box.

WHAT IT HOLDS

5 Teradek RT pre-marked rings, focus or iris. Teradek makes 5 metric focus rings (0.25 m, 0.5 m, 1 m, 2 m and 3 m) and 6 imperial ones (10", 14", 20", 3'6", 6' and 10'), plus an iris ring. Keep the 5 you reach for most in here, and the one you are using lives on your controller. The photos show one way to fill it: the Iris, 10", 3'6", 6' and 10' rings.

The rings are not included. The white rings in the photos and renders are there to show the fit. You are buying the storage, not the rings.

Example of a Teradek RT Pre-Marked Focus Ring, 3 m range, shown for reference and not included

Example of a Teradek RT Pre-Marked Focus Ring. Shown for reference only, not included.

HOW IT MOUNTS

  • To a Boom Box: three M3 x 10 mm socket head screws. These are provided if you purchase this as an add-on for the Boom Box.
  • To a super clamp: any standard super clamp, using the 2 x M5 x 20 mm bolts provided. They go into the two stainless steel M5 threaded inserts on the side. The super clamp is not included.

MATERIALS AND BUILD

  • Holds 5 Teradek RT pre-marked rings
  • ABS carbon fibre
  • 5 individual curved slots
  • 2 x M5 stainless steel threaded inserts
  • Hardware provided: 2 x M5 x 20 mm bolts
  • 3 x M3 x 10 mm socket head screws provided when purchased as a Boom Box add-on

QUESTIONS

Does it hold the Teradek RT iris ring?
Yes. Each slot takes one RT pre-marked ring, focus or iris. The photos show the Iris ring in the first slot.

Does it take metric and imperial rings?
Yes. The slot is cut for the ring, not the markings, so metric and imperial rings both sit in it.

Are the rings included?
No. This is the storage only. The rings come from Teradek or a Teradek dealer.

Do I need a Boom Box?
No. It mounts to any standard super clamp with the 2 x M5 x 20 mm bolts provided. On a Boom Box it fixes on with three M3 x 10 mm socket head screws, provided when you buy it as a Boom Box add-on.

Will it work with my front box?
If your setup takes a standard super clamp, yes. Running something different? Email info@3dfilmparts.com with what you have and we will tell you straight whether it works.

Teradek, RT and CTRL are trademarks of their respective owner. 3D Film Parts is not affiliated with or endorsed by Teradek.

Shipping and delivery

🇦🇺 Australia. $10 on orders under $99, free over $99.
🇺🇸🇨🇦 United States and Canada. Your import duties and clearance fees are prepaid by us before the parcel leaves Australia and are included in the shipping rate you pay at checkout. There is nothing further to pay on delivery.
🌏 Everywhere else. Your own country may charge import fees when the parcel arrives. What changed on 1 July

When your order ships

We pack Monday to Friday in Melbourne and ship with Australia Post. Order before 12:00pm AEST on a business day and your parts normally go out in 1 to 2 business days, often the next morning. During a big sale or a busy run that can stretch to 5 business days. That is the outside number, not the usual one.

How long it takes to reach you, counting from the day it ships:

  • Australia, express: 1 to 2 business days
  • New Zealand and South East Asia: 3 to 7 business days
  • United States and Canada: 5 to 10 business days
  • United Kingdom and Europe: 5 to 12 business days
  • South America: 10 to 15 business days

These are estimates, not guarantees. Customs and peak periods add time.

If the tracking stops moving

Once your parcel lands in your country it is handed to your national postal service, and our tracking link often stops updating at that point. That is normal: it has not been lost, it has just changed hands. Take the same tracking number and put it into your own country's postal site, which is the live one.

European Union

Since 1 July 2026 every commercial parcel is assessed regardless of value. Your carrier collects import VAT plus a flat customs duty before delivery, and will contact you by SMS or email with the amount. Please give us a mobile number at checkout so they can reach you, because a parcel they cannot reach you about is sent back.

Full detail is on our shipping page.

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