Tools/Data & Storage/Canon

Canon Data Calculator

Cinema RAW Light and XF-AVC data rates, file sizes per hour, card capacity and record time — for C400, C500 Mark II, C300 Mark III, C80, C70 and R5 C. Free, no sign-up, built by a DoP who shoots Canon Cinema EOS every week.

Bitrates from Canon spec sheets · GB per hour · CFexpress Type B media

Camera

Codec

Resolution & fps

Quality / bitrate

Record time

Card / drive size

Include 20% safety buffer

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Canon data rates per hour

The headline numbers — how much data each Canon Cinema EOS camera writes per hour of recording at 25 fps. Use the calculator above for other frame rates, codecs and record times.

EOS C400

C400 · 25 fps
Codec & format	Data rate	Per hour
Cinema RAW Light HQ · 6K FF	~1,800 Mbps	~810 GB
Cinema RAW Light ST · 6K FF	~886 Mbps	~399 GB
Cinema RAW Light LT · 6K FF	~576 Mbps	~259 GB
XF-AVC · 4K DCI	410 Mbps	~185 GB
XF-AVC S (H.264) · 4K DCI	500 Mbps	~225 GB
XF-HEVC S (H.265) · 4K DCI	225 Mbps	~101 GB

EOS C500 Mark II

C500 Mark II · 25 fps
Codec & format	Data rate	Per hour
Cinema RAW Light HQ · 5.9K FF	~1,770 Mbps	~797 GB
Cinema RAW Light ST · 5.9K FF	~871 Mbps	~392 GB
Cinema RAW Light LT · 5.9K FF	~556 Mbps	~250 GB
XF-AVC Intra · 4K DCI	810 Mbps	~365 GB
XF-AVC Intra · 4K DCI	410 Mbps	~185 GB

EOS C300 Mark III

C300 Mark III · 25 fps
Codec & format	Data rate	Per hour
Cinema RAW Light HQ · 4K DCI	~1,000 Mbps	~450 GB
Cinema RAW Light ST · 4K DCI	~500 Mbps	~225 GB
Cinema RAW Light LT · 4K DCI	~250 Mbps	~113 GB
XF-AVC Intra · 4K DCI	410 Mbps	~185 GB
XF-AVC Long GOP · 4K DCI	160 Mbps	~72 GB

C80 / C70 / R5 C

Compact bodies · 25 fps
Codec & format	Data rate	Per hour
C80 · Cinema RAW Light ST · 6K FF	~886 Mbps	~399 GB
C70 · Cinema RAW Light HQ · 4K DCI	~1,020 Mbps	~459 GB
C70 · XF-AVC Intra · 4K DCI	410 Mbps	~185 GB
R5 C · Cinema RAW Light HQ · 8K FF	~2,700 Mbps	~1.22 TB
R5 C · Cinema RAW Light LT · 8K FF	~1,115 Mbps	~502 GB
R5 C · XF-AVC Intra · 4K DCI	410 Mbps	~185 GB

All rates approximate, from Canon spec sheets. GB per hour = Mbps × 3,600 ÷ 8 ÷ 1,000. Actual sizes vary with scene complexity, firmware and settings.

Record time on Canon media

512 GB CFexpress Type B · C300 Mark III · 4K DCI 25 fps
Codec	Record time
Cinema RAW Light HQ	~68 min
Cinema RAW Light ST	~2h 17m
XF-AVC Intra · 410 Mbps	~2h 46m
XF-AVC Long GOP · 160 Mbps	~7h

A 1 TB card roughly doubles these times. The C70 records to SD (V90); all other bodies here use CFexpress Type B.

Which media does each camera take?

C400, C500 Mark II, C300 Mark III, C80 and R5 C record RAW to CFexpress Type B (Angelbird AV Pro MK2, ProGrade Gold or similar); most also offer SD card proxy recording. The C70 records everything to V90 SD cards. Always add roughly 20% headroom over the calculated total when ordering media — reloads never land exactly on card boundaries.

Canon data — quick answers

How much data does Cinema RAW Light record per hour?

On the C400 at 6K full frame 25 fps: HQ is about 1,800 Mbps — roughly 810 GB per hour; ST about 886 Mbps — roughly 399 GB per hour; LT about 576 Mbps — roughly 259 GB per hour. On the C300 Mark III at 4K DCI 25 fps: HQ is about 450 GB per hour, ST about 225 GB per hour and LT about 113 GB per hour.

How much data does XF-AVC use per hour?

XF-AVC Intra at 4K DCI up to 29.97 fps runs at 410 Mbps — about 185 GB per hour. XF-AVC Long GOP at 160 Mbps is about 72 GB per hour, and 1080p XF-AVC drops to roughly 20–72 GB per hour depending on bitrate.

How many minutes fit on a 512 GB CFexpress card in a C300 Mark III?

At 4K DCI 25 fps: about 68 minutes in Cinema RAW Light HQ, about 2 hours 17 minutes in Cinema RAW Light ST, about 2 hours 46 minutes in XF-AVC Intra at 410 Mbps, or around 7 hours in XF-AVC Long GOP at 160 Mbps. A 1 TB card roughly doubles those times.

Are these Canon data rates exact?

They are close approximations from Canon specification sheets. Actual file sizes vary slightly with scene complexity, firmware and settings, so add around 20% headroom when ordering media for a shoot.