20cm VFX Balls
8 Inch Chrome Ball and Grey Ball VFX Set
Two separate 20cm spheres with two handles and shipping included
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20cm VFX Balls
20cm Single VFX Ball Half Mirror and Half Grey
A 20cm split sphere on a 1/4 UNC thread with a stretch handle
This 20cm ball is fitted with a 1/4 UNC thread so it mounts to a tripod or to the supplied handle.
The grey side uses 50% grey paint with 18% reflectivity, the figure post production expects from a grey reference.
It ships as one ball with one stretch handle.
Ball diameter: 20 cmFinish: Half mirror, half greyGrey side: 50% grey paint, 18% reflectivityThread: 1/4 UNC
Key Benefits
- Reads clearly from further back than a 12.6cm ball
- 1/4 UNC fits the smaller fittings already on most camera carts
- The stretch handle keeps the operator out of the reflection
- One sphere covers both the chrome and the grey pass
Application Scenarios
- Medium wide plates where a small ball disappears in frame
- Exterior location capture
- Commercial shoots with CG product replacement
- Reference for crowd and stunt plates
Who It Is For
- VFX supervisors on exterior units
- Data wranglers covering wide lenses
- Studios upgrading from a 12.6cm reference ball
Problems It Solves
- A small ball on a wide lens gives too few pixels to build an HDRI from
- Balls without a standard thread end up taped to a stand
- Grey paint with the wrong reflectivity sends the grade the wrong way
Technical Features
- 1/4 UNC thread for tripod or handle mounting
- 50% grey paint with 18% reflectivity on the grey side
- 1 x 20cm half mirror and half grey ball
- 1 x stretch handle
- Part of the 20cm range
Specifications
| Ball diameter | 20 cm |
|---|---|
| Finish | Half mirror, half grey |
| Grey side | 50% grey paint, 18% reflectivity |
| Thread | 1/4 UNC |
| Supplied with | 1 x stretch handle |
| Net weight | TBC |
Values marked TBC are not published on the source material we work from and are confirmed in writing before an order is placed.
Materials
Polished stainless steel mirror half and a 50% grey painted half at 18% reflectivity.
Manufacturing Process
The mirror half is polished through a multi step sequence so the reflected environment stays true across the curve.
Quality Control
Reflectivity of the grey half is set at 18% and checked against the same reference used across the range.
Certifications
We do not publish certification claims for this product. If your procurement process needs documentation, ask us before ordering and we will tell you exactly what we can supply.
Customization Options
The same split finish is available at 12.6cm and 25cm, and we also produce 6cm and 30cm balls.
Comparison With Other Products
The 20cm half chrome half grey ball uses a 3/8 UNC thread and a telescopic handle. This version uses a 1/4 UNC thread and a stretch handle, which suits lighter fittings.
Use Guide
How Crews Work With This Product
- Thread the ball onto the handle or a tripod head using the 1/4 UNC socket
- Hold it at the subject position with the split line vertical
- Keep your own body out of the mirrored half of the frame
- Shoot the bracketed set before the lighting is adjusted again
Related Products
Other Balls Crews Order With This One
20cm VFX Balls
20cm Half Chrome Half Grey Ball
A 3/8 UNC split sphere with a telescopic handle that reaches 47cm
View product
25cm VFX Balls
25cm Single VFX Ball Half Mirror and Half Grey
The large split sphere for wide plates, on a 1/4 UNC thread
View productRelated Reading
Guides That Cover This Product
Guide
What a VFX Chrome Ball Does on Set
A chrome ball records the environment around the subject so CG elements can be lit from the same light as the plate. Here is what it is and how it is used.
Read moreSolution
On Set HDRI Capture
A repeatable capture routine from call time to dispatch of the reference.
Read moreFAQ
20cm Single VFX Ball Half Mirror and Half Grey FAQ
Which thread does this ball use
A 1/4 UNC thread, which mounts to a tripod or to the supplied handle.
What is the reflectivity of the grey side
The grey side uses 50% grey paint with 18% reflectivity.
What is in the box
One 20cm half mirror and half grey ball and one stretch handle.
How long until it ships
We dispatch as soon as the ball is ready and ask for up to 15 days in the worst case.
Quote the 20cm Single VFX Ball Half Mirror and Half Grey
Send the quantity and the delivery country and we will confirm price packing and dispatch window in writing.