CAMERA



Autor: Redaktion


RED Cameras

The RED camera family.

RED offers a range of DSMC (Digital Still and Motion Cameras) devices aimed at the high-end production market. They are commonly used in films and natural history programme making. In addition to the RED EPIC and the EPIC-W, there is the RED SCARLET, its successor SCARLET-W and the WEAPON. The RED line up is updated regularly with new sensors introduced across the range. 



RED introduced its DSMC2 generation of cameras in October 2016. This brought in a new HELIUM sensor that can deliver up to 8K resolutions. The list below highlights the current models and their maximum resolutions:

WEAPON (HELIUM SENSOR) 8k : maximum 8K (8192 x 4320)

WEAPON 6k (RED DRAGON SENSOR) : maximum 6K (6144x3160)

EPIC-W (HELIUM SENSOR) 8k: maximum 8k (8192 x 4320)

SCARLET-W (RED DRAGON SENSOR): maximum 5K (5120x2700)

RAVEN (RED DRAGON SENSOR): maximum 4.5K (4608x2160 to 120fps)

Common to all devices is a specified dynamic range of 16.5 f-stops. They also have the ability to record REDCODE RAW in parallel with Apple ProRes or DNxHR /HD . This enables fast rough cutting workflows as it avoids having the complex data management, computationally intensive processing and colour treatment that REDRAW requires for finishing and delivery. The ProRes recording is possible in 4444XQ to 2K (2048x1080), with DNxHR HQ, SQ and LB at 4K. These speeds up proxy edits, with high quality video proxies generated in camera.

The most significant differences between the devices are the sensors, the maximum resolution they can capture, as well as the frame rate they can record. The WEAPON 8K can record at 8K 2:4:1 resolution at up to 75fps which outputs 300MB/s, while the EPIC-W can record at 8K 2:4:1 resolution at upto 30fps which outputs 275MB/s. The limiting factor in this scenario is storage. The fastest storage devices which can support 300MB/s are the RED Minimags. The largest of these can hold a total capacity of 960GB.

The recording settings are highly configurable by the user. Compression rates, frame rates, resolutions and aspect ratio can all be tweaked to achieve the desired quality.

As a general recommendation: a REDRAW compression ratio of 3: 1 should be used for films, 5: 1 for scenic shots, and 7: 1 for Web & TV.

Black Shading is a calibration process to reduce the sensor noise during recording. During the process users should insert the sensor cap into the mount and the camera should be powered by an AC adapter. The Black Shading can be found in: Menu Settings (Settings)> Maintenance (Maintenance)> Calibrate (Calibration)> Sensor> Calibration Capture (calibration detection). The camera calibration process only takes several minutes.


RED WEAPON / MONSTRO 8K VV

The Red Weapon is now available with a Monstro 8K VV sensor with a contrast range of up to 17 f-stops. At 40.96 mm x 21.60 mm, the sensor is slightly larger than the classic full-size format (36mm x 24mm). With effective 8,192x4320 pixels (35.4 MP), the Monstro is capable of  full 8K resolution.

The RED Weapon / Monstro 8K VV records in 8K 2.4:1 with up to 75 FPS or in 8K Full Format (16:9) with up to 60 FPS. Its 300MB/s data rates allow simultaneous recording of Redcode Raw with Proxy 4K Apple ProRes or 4K Avid DNxHR. The RED Weapon / Monstro 8K VV  uses RED's IPP2 (Image Processing Pipeline).

The Monitor Output can deliver:

• 3G-SDI (HD-SDI ) and HDMI with DSMC2 Expander Module

• 1080p RGB or 4: 2: 2, 720p RGB or 4: 2: 2

• 480p RGB or 4: 2: 2 (HDMI only)

• SMPTE timecode , HANC metadata, 24-bit 48 kHz audio

As part of the DSMC2 range of cameras, the Weapon / Monstro 8K VV benefits from the fact that many existing accessories are compatible with the camera.

Wireless accessories, an integrated mounting plate, wireless control and compatibility with the many other Red products make the Weapon / Monstro 8K VV a versatile camera system. In addition, interchangeable OLPFs (Optical Low Pass Filters) and lens mounts are supported.

The camera weight (without lens and accessories) is just 1.5kg.

Exposure


RED’s False Color Mode is a useful tool for rapidly and reliably evaluating exposure. Red areas indicate clipped image content, purple areas indicate the Black squeezed signal content. It’s also possible to view False Color Mode in post production.

Focus

Both the viewfinder and the LCD provide focus peaking, a tool for quickly assessing the sharpness of an image.

HDR

Another feature is the HDRx mode, which increases the dynamic range by a further 6 stops.  It will capture the normal standard aperture and shutter settings in one image, while simultaneously recording a second exposure for highlight protection, using an adjustable shutter speed that is 2-6 stops faster. Both tracks are in sync, with no offset between the two shots.

Processing REDRAW

To check REDRAW material, to trim, and to transcode, RED provides the REDCINE-X software. This can be downloaded from the RED website. This software is recommended for all workflows using  RED cameras. It’s also a useful tool for the evaluation of the data generated by the camera.

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