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« on: May 16, 2014, 04:41:51 PM »
I wasn't referring to an Alexa, rather a black magic or something similar (but all the cheap solutions bring tons of their own special quirks that have to be dealt with, so sticking with a system you already know sounds reasonable).
So anyhow, looks like you have a good background and approach (handle it like a shoot on film stock).
So the things left to say would be: Testing the two cameras a lot, so you know all the problem scenarios.
Recording raw while monitoring via HDMI might also behave differently, then without (does it even work at all?).
Shutting down the live view when ever you can, especially on a well lit set the cameras heat up quickly and I think i noticed an increased noise due to risen temperature on the 5d3 and the 7d has one of the worst sensors...
Maybe check at what ISOs the 50d and 7d have similar noise patterns for better matching of intercut shots.
When backing up, use a checksum tool, might save you a lot of trouble...
ML Raw still produces bad frames sometimes, you don't find out until you checked the recorded files...
Komputerbay cards do not seem to be very reliable, some users say they run rockstable, some report corrupt files and some even corrupted cards that lose the entire data. Extensive testing of the cards beforehand will save you from losing material but even then a risk will stay...
Due to the lower resolution than 1080p you will not need the fastest card available so borrowing cards from friends/colleages or a rental becomes an option. Take a closer look at the Sandisk 32+GB 120,90 and 60MB/s cards too. Transcend 1000x also perform alright.
MLRawViewer is a cool tool to take a quick look at shots taken directly from the camera.
For safety I would only use USB 3 card readers (with newest firmware) and stick to one reader only that is known to work, some UDMA7 cards get corrupted by readers.
I guess many of my points were already considered.
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