Brownian Motion

We offer a wealth of knowledge on the equipment we supply. Here’s some of the hot topics we often get asked about in relation to Cameras, Lenses and DIT services

What does the "S" mean in Alexa SXT?

Arri have just released the latest iteration of the Alexa - the Alexa SXT. It has the same form factor as the previous flagship XT and offers the following improvements:

- 4K Prores recording

- New SXR SSD mags offering 20GB/s write speeds and therefore higher frame rates in 16:9 Prores Formats over the XT.

- Prores RAID recording - built in RAID 1 redundancy when recording.

-  Improved image quality with advanced signal processing and noise reduction.

- 3D LUT compatibility for both monitoring and burnt in recording. Including Wifi live grading and 4 independent monitor paths for different crew departments.

- 6:5 Sensor recording mode for true Anamorphic shooting.

And the S stands for "Super" Xtended Technology.......

What is the 8K Vista Vision Weapon Sensor?

Red is currently in the process of delivering two types of 8K resolution sensor. 

The existing Dragon line of sensors will now have a larger physical cut of the same sensor, with the same 5 micron pixel pitch, and will be referred to as 8K Vista Vision. This will cover a sensor size close to the size of 35mm Vista Vision Film. This will give DOPs the option of using Full Frame lens options and capturing a field of view in their cinematography matched only by the Alexa 65. This sensor is the same as will be incorporated in the newly announced Panavision DXL camera.

We will offer a section of compatible vintage lenses to work with this sensor...

What sort of Arri Raw can I shoot on an Alexa Mini?

The Alexa Mini can shoot in Arri Raw mode on board to Cfast cards up to 48fps in 2.8k mode and 30fps in Open Gate 3.4k mode.

MXF/ARRIRAW (in-camera recording to MXF-wrapped ARRIRAW files):
2.8K 16:9: 2880 x 1620
Open Gate: 3424 x 2202

MXF/ARRIRAW Open Gate modes with active image area matching 4:3 ProRes modes:
4:3 2.8K (OG 3.4K): 2880 x 2160 (Recording in Open Gate 3.4K)
2.39:1 Ana. (OG 3.4K): 2560 x 2145 (Recording in Open Gate 3.4K)
16:9 HD Ana. (OG 3.4K): 1920 x 2160 (Recording in Open Gate 3.4K)

What is the 8K Helium Sensor?

The new Helium sensor from Red is their next generation offering using a 3.5 micron pixel pitch. It will offer 8K resolution at approximately the size of S35. This will mean that that greater resolution can be harnessed without the need to move to larger glass options. It will be available in either Weapon cameras (the top of the range with greatest frame rate and compression options) or the new Epic W (the same sensor but limited in frame rate capability and compression options).

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