MEDIA BEST PRACTICES
This section describes best practices to ensure that your CFast cards continue to provide reliable storage and fast
data rates. Following these best practices may prevent your CFast card from becoming fragmented, which can lead to
data integrity errors.
The only files that should be saved from your computer to your CFast card are Preset files, Firmware Upgrade
files, and LUTs. DO NOT save other files, folders, or applications to your media.
DO NOT back up your hard drive to the CFast card. If using a Mac, the system may ask if you want to back up
your files to the CFast card using Time Machine; DO NOT use the CFast card as a backup disk.
DO NOT delete clips off of your CFast card using a computer. Delete clips only by formatting your CFast card in-
camera. For more information about formatting your CFast card, refer to
Secure Format
.
DO NOT format your CFast card using a computer, unless the CFast card cannot mount to the camera. For more
information, refer to
Secure Format
.
When ejecting the CFast card from a computer, ensure that the icon has completely disappeared from the Finder
window (Mac) or from Windows Explorer (Windows) before removing the CFast card. Sometimes, the pop-up
saying that the CFast card has ejected displays too early.
INDEXING ON A MAC
Most newer versions of the Mac OS automatically index all external drives when mounting them, including CFast
cards. Indexing makes the mounting process take longer. While the CFast card mounts, DO NOT remove the card.
Indexing writes hidden files to the CFast card. When you mount the CFast card to the camera after it has been
indexed, it may take the camera a while to recognize the hidden files and mount the CFast card. While the CFast card
mounts, DO NOT remove the CFast card or turn off the camera during this process. After the CFast card successfully
mounts, perform a secure format to remove the hidden files. For more information, refer to
Secure Format
.
EXPOSURE
The camera offers multiple tools to determine the current image exposure levels and provides the tools to adjust the
exposure to the desired levels.
When using the R3D file format, you can correct color temperature and ISO settings at any time. The aperture and
exposure time however, are two of the parameters that you cannot corrected later in R3D files.
NOTE:
ProRes file format burns in all of the settings and does not allow later corrections to the recorded image.
While the correct exposure is always an artistic decision, there are best practices for creating the most dynamic range
while allowing post production to preserve the intended image information.
The goal is to reduce clipping in the bright and dark parts of the image as much as possible. Otherwise the sensor
information is lost in the overexposed and underexposed areas.
The primary tool for determining the exposure levels is the histogram. It shows exactly what the sensor is detecting.
Monitors have their own color gamuts and brightness levels which makes the monitor less than optimal for
determining the camera's exposure levels.
This camera includes a full
Histogram
that can toggle to a simple indicator that only shows the sensor 's RGB levels
and it signals when these levels are clipping in the light and dark areas.
The full histogram provides information about how the brightness is distributed in the image. This allows you to see
how close a scene is to clipping in the light and dark areas, which makes it easy to choose aperture, exposure, and
ND filters solutions accordingly.
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