Author Topic: Compressed 12 / 10 bit RAW on 5D MK III build?  (Read 890 times)

ragunaath

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Compressed 12 / 10 bit RAW on 5D MK III build?
« on: February 22, 2018, 01:19:43 PM »
Hi, I went through the post and discussions related to RAW recording, we are going to shoot a short film on 5D MK III, it's my friend's camera and he has 95 Mbps Sandisk SD card.

I tried the RAW calculator, we intend to shoot 1920 x 818 as a 2.35:1 aspect ratio. The calculator shows 62.8 MB/s for 14bit uncompressed RAW.

Also when I choose, 12 bit or 10 bit, it shows 53.9 MB/s and 44.9 MB/s respectively.

1. Is Sandisk 90 Mbps Extreme Pro SD card or 120 Mbps CF card, enough to shoot in Uncompressed RAW?

2. If I can go for compressed 12bit or 10bit, is Sandisk 90 Mbps Extreme Pro SD card, enough?

 

Also, It would be helpful, If you could share the link to 10bit / 12bit compressed RAW build (relatively stable) for 5D MK III, I'm little confused on which one to download.

Thankyou

Walter Schulz

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Re: Compressed 12 / 10 bit RAW on 5D MK III build?
« Reply #1 on: February 22, 2018, 08:17:02 PM »
- SD-card interface limit in 5D3 (write mode) is about 21 MByte/s.
- Don't even think about using an SD-to-CF-card adapter. Most are crap.
- Quite reliable source for flash memory reviews: http://cameramemoryspeed.com
  Exception: Their in-cam benchmarks ... grain of salt needed.
Photogs and videographers: Assist in proof reading upcoming in-camera help!. Your input is wanted and needed!

allemyr

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Re: Compressed 12 / 10 bit RAW on 5D MK III build?
« Reply #2 on: February 22, 2018, 08:23:25 PM »
Yes CF card is the way to go. Also check the write speed of the card, its often the read speed thats are advertised. To give a example, I have a Sandisk USB3 memory that has a read speed of 250mb/s but only a write speed at 50mb/s. I use a Lexar 256gb 1066x CF card since many years. Check out though for counterfeited products, I for example bought a counterfeit Lexar 128gb 1066x CF card once, it didn't perform good after a while.