Canon EOS R6 Mark III recording time and file size

How much fits on each card, for all 125 recording modes Canon publishes. Bitrates checked November 11, 2026.

Ask about the Canon EOS R6 Mark III

Key facts

Recording media: CFexpress Type B + SDXC (UHS-II)
Published recording modes: 125 normal
Highest bitrate: 2,600 Mbps: Cinema RAW Light Standard RAW at 29.97p / 25p / 24p / 23.98p (RAW 12-bit)
Lightest 4K mode: 100 Mbps: XF-HEVC S YCC420 10 bit Standard LGOP at 29.97p / 25p / 24p / 23.98p (4:2:0 10-bit)
Card for the top mode: CFexpress. Canon lists: CFexpress 2.0 Type-B [400MB/sec. or more]; SD not supported
128 GB card at 4K 30p: 1 hr 48 min in XF-AVC S YCC422 10 bit Standard LGOP at 29.97p (4:2:2 10-bit, 150 Mbps)
Top frame rate (normal video): 179.82p at 2K and 1080p
Slow motion (in camera): Not published by Canon

"4K 30p" means the highest-bitrate 4K UHD mode at 29.97p or 30p that a V30 card can record (240 Mbps or less). If there is no 30p, we use 25p, then 24p.

Quick answer

A 128 GB card holds about 1 hr 48 min of XF-AVC S YCC422 10 bit Standard LGOP at 29.97p (4:2:2 10-bit, 150 Mbps) on the Canon EOS R6 Mark III. The heaviest mode, Cinema RAW Light Standard RAW at 29.97p / 25p / 24p / 23.98p (RAW 12-bit, 2,600 Mbps), uses 1,170 GB per hour, so the same card lasts 6 min. The lightest 4K mode (100 Mbps) fits 2 hr 42 min.

Open the Canon EOS R6 Mark III in the calculator

Set your shoot length, number of cameras and upload speed to see total storage and cards needed.

Recording time by mode

Every normal recording mode Canon lists, grouped by resolution and frame rate. Times are continuous recording on one card.

Format	Color	BitrateMbps	Per hourGB	64 GBcard	128 GBcard	256 GBcard	512 GBcard	Card speed
6K 6960x4640
24p / 23.98p
Cinema RAW Light Standard RAW	RAW 12-bit	2,600	1,170	3m	6m	12m	24m	CFexpress
Cinema RAW Light Light RAW	RAW 12-bit	1,220	549	6m	13m	26m	53m	CFexpress
29.97p / 25p
Cinema RAW Light Standard RAW	RAW 12-bit	2,600	1,170	3m	6m	12m	24m	CFexpress
Cinema RAW Light Light RAW29.97p only	RAW 12-bit	1,520	684	5m	10m	21m	42m	CFexpress
Cinema RAW Light Light RAW25p only	RAW 12-bit	1,270	572	6m	12m	25m	51m	CFexpress
6K 6960x3672
24p / 23.98p
Cinema RAW Light Standard RAW	RAW 12-bit	2,150	968	3m	7m	15m	30m	CFexpress
Cinema RAW Light Light RAW	RAW 12-bit	970	437	8m	16m	33m	1h 6m	CFexpress
29.97p / 25p
Cinema RAW Light Standard RAW29.97p only	RAW 12-bit	2,600	1,170	3m	6m	12m	24m	CFexpress
Cinema RAW Light Standard RAW25p only	RAW 12-bit	2,240	1,008	3m	7m	14m	28m	CFexpress
Cinema RAW Light Light RAW29.97p only	RAW 12-bit	1,210	545	6m	13m	26m	53m	CFexpress
Cinema RAW Light Light RAW25p only	RAW 12-bit	1,010	455	8m	16m	32m	1h 4m	CFexpress
59.94p / 50p
Cinema RAW Light Light RAW59.94p only	RAW 12-bit	2,410	1,085	3m	6m	13m	26m	CFexpress
Cinema RAW Light Light RAW50p only	RAW 12-bit	2,010	905	4m	8m	16m	32m	CFexpress
6K 6912x4608
24p / 23.98p
XF-HEVC S YCC422 10 bit High Quality Intra	4:2:2 10-bit	1,730	779	4m	9m	18m	37m	CFexpress
XF-HEVC S YCC422 10 bit Standard Intra	4:2:2 10-bit	1,300	585	6m	12m	24m	49m	CFexpress
XF-HEVC S YCC422 10 bit Light Intra	4:2:2 10-bit	864	389	9m	18m	37m	1h 15m	CFexpress
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	486	219	16m	33m	1h 6m	2h 13m	V90
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	360	162	22m	45m	1h 30m	3h	V60
29.97p / 25p
XF-HEVC S YCC422 10 bit Standard Intra29.97p only	4:2:2 10-bit	1,620	729	5m	10m	20m	40m	CFexpress
XF-HEVC S YCC422 10 bit Standard Intra25p only	4:2:2 10-bit	1,350	608	6m	12m	24m	48m	CFexpress
XF-HEVC S YCC422 10 bit Light Intra29.97p only	4:2:2 10-bit	1,080	486	7m	15m	30m	1h	CFexpress
XF-HEVC S YCC422 10 bit Light Intra25p only	4:2:2 10-bit	900	405	9m	18m	36m	1h 12m	CFexpress
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	486	219	16m	33m	1h 6m	2h 13m	V90
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	360	162	22m	45m	1h 30m	3h	V60
DCI 4K 4096x2160
24p / 23.98p
XF-AVC S YCC422 10 bit High Quality Intra	4:2:2 10-bit	480	216	16m	33m	1h 7m	2h 15m	V60
XF-AVC S YCC422 10 bit Standard Intra	4:2:2 10-bit	360	162	22m	45m	1h 30m	3h	V60
XF-AVC S YCC422 10 bit Light Intra	4:2:2 10-bit	240	108	33m	1h 7m	2h 15m	4h 30m	V30
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	135	60.8	1h	2h	4h	8h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
29.97p / 25p
XF-AVC S YCC422 10 bit High Quality Intra29.97p only	4:2:2 10-bit	600	270	13m	27m	54m	1h 48m	V90
XF-AVC S YCC422 10 bit High Quality Intra25p only	4:2:2 10-bit	500	225	16m	32m	1h 4m	2h 9m	V90
XF-AVC S YCC422 10 bit Standard Intra29.97p only	4:2:2 10-bit	450	203	18m	36m	1h 12m	2h 24m	V60
XF-AVC S YCC422 10 bit Standard Intra25p only	4:2:2 10-bit	375	169	21m	43m	1h 26m	2h 52m	V60
XF-AVC S YCC422 10 bit Light Intra29.97p only	4:2:2 10-bit	300	135	27m	54m	1h 48m	3h 36m	V60
XF-AVC S YCC422 10 bit Light Intra25p only	4:2:2 10-bit	250	113	32m	1h 4m	2h 9m	4h 19m	V60
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	135	60.8	1h	2h	4h	8h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
59.94p / 50p
XF-AVC S YCC422 10 bit High Quality Intra59.94p only	4:2:2 10-bit	1,200	540	6m	13m	27m	54m	CFexpress
XF-AVC S YCC422 10 bit High Quality Intra50p only	4:2:2 10-bit	1,000	450	8m	16m	32m	1h 4m	CFexpress
XF-AVC S YCC422 10 bit Standard Intra59.94p only	4:2:2 10-bit	900	405	9m	18m	36m	1h 12m	CFexpress
XF-AVC S YCC422 10 bit Standard Intra50p only	4:2:2 10-bit	750	338	10m	21m	43m	1h 26m	CFexpress
XF-AVC S YCC422 10 bit Light Intra59.94p only	4:2:2 10-bit	600	270	13m	27m	54m	1h 48m	V90
XF-AVC S YCC422 10 bit Light Intra50p only	4:2:2 10-bit	500	225	16m	32m	1h 4m	2h 9m	V90
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	250	113	32m	1h 4m	2h 9m	4h 19m	V60
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	225	101	36m	1h 12m	2h 24m	4h 48m	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
119.88p / 100p
XF-AVC S YCC422 10 bit Standard Intra119.88p only	4:2:2 10-bit	1,800	810	4m	9m	18m	36m	CFexpress
XF-AVC S YCC422 10 bit Standard Intra100p only	4:2:2 10-bit	1,500	675	5m	10m	21m	43m	CFexpress
XF-AVC S YCC422 10 bit Light Intra119.88p only	4:2:2 10-bit	1,200	540	6m	13m	27m	54m	CFexpress
XF-AVC S YCC422 10 bit Light Intra100p only	4:2:2 10-bit	1,000	450	8m	16m	32m	1h 4m	CFexpress
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	500	225	16m	32m	1h 4m	2h 9m	V90
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	450	203	18m	36m	1h 12m	2h 24m	V60
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	300	135	27m	54m	1h 48m	3h 36m	V60
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	300	135	27m	54m	1h 48m	3h 36m	V60
4K 3840x2160
23.98p
XF-AVC S YCC422 10 bit High Quality Intra	4:2:2 10-bit	480	216	16m	33m	1h 7m	2h 15m	V60
XF-AVC S YCC422 10 bit Standard Intra	4:2:2 10-bit	360	162	22m	45m	1h 30m	3h	V60
XF-AVC S YCC422 10 bit Light Intra	4:2:2 10-bit	240	108	33m	1h 7m	2h 15m	4h 30m	V30
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	135	60.8	1h	2h	4h	8h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
29.97p / 25p
XF-AVC S YCC422 10 bit High Quality Intra29.97p only	4:2:2 10-bit	600	270	13m	27m	54m	1h 48m	V90
XF-AVC S YCC422 10 bit High Quality Intra25p only	4:2:2 10-bit	500	225	16m	32m	1h 4m	2h 9m	V90
XF-AVC S YCC422 10 bit Standard Intra29.97p only	4:2:2 10-bit	450	203	18m	36m	1h 12m	2h 24m	V60
XF-AVC S YCC422 10 bit Standard Intra25p only	4:2:2 10-bit	375	169	21m	43m	1h 26m	2h 52m	V60
XF-AVC S YCC422 10 bit Light Intra29.97p only	4:2:2 10-bit	300	135	27m	54m	1h 48m	3h 36m	V60
XF-AVC S YCC422 10 bit Light Intra25p only	4:2:2 10-bit	250	113	32m	1h 4m	2h 9m	4h 19m	V60
XF-AVC S YCC422 10 bit Standard LGOP4K 30p pick	4:2:2 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	135	60.8	1h	2h	4h	8h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
59.94p / 50p
XF-AVC S YCC422 10 bit High Quality Intra59.94p only	4:2:2 10-bit	1,200	540	6m	13m	27m	54m	CFexpress
XF-AVC S YCC422 10 bit High Quality Intra50p only	4:2:2 10-bit	1,000	450	8m	16m	32m	1h 4m	CFexpress
XF-AVC S YCC422 10 bit Standard Intra59.94p only	4:2:2 10-bit	900	405	9m	18m	36m	1h 12m	CFexpress
XF-AVC S YCC422 10 bit Standard Intra50p only	4:2:2 10-bit	750	338	10m	21m	43m	1h 26m	CFexpress
XF-AVC S YCC422 10 bit Light Intra59.94p only	4:2:2 10-bit	600	270	13m	27m	54m	1h 48m	V90
XF-AVC S YCC422 10 bit Light Intra50p only	4:2:2 10-bit	500	225	16m	32m	1h 4m	2h 9m	V90
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	250	113	32m	1h 4m	2h 9m	4h 19m	V60
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	225	101	36m	1h 12m	2h 24m	4h 48m	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
119.88p / 100p
XF-AVC S YCC422 10 bit Standard Intra119.88p only	4:2:2 10-bit	1,800	810	4m	9m	18m	36m	CFexpress
XF-AVC S YCC422 10 bit Standard Intra100p only	4:2:2 10-bit	1,500	675	5m	10m	21m	43m	CFexpress
XF-AVC S YCC422 10 bit Light Intra119.88p only	4:2:2 10-bit	1,200	540	6m	13m	27m	54m	CFexpress
XF-AVC S YCC422 10 bit Light Intra100p only	4:2:2 10-bit	1,000	450	8m	16m	32m	1h 4m	CFexpress
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	500	225	16m	32m	1h 4m	2h 9m	V90
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	450	203	18m	36m	1h 12m	2h 24m	V60
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	300	135	27m	54m	1h 48m	3h 36m	V60
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	300	135	27m	54m	1h 48m	3h 36m	V60
2K 2048x1080
24p / 23.98p
XF-AVC S YCC422 10 bit Standard Intra	4:2:2 10-bit	120	54	1h 7m	2h 15m	4h 30m	9h	V30
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
29.97p / 25p
XF-AVC S YCC422 10 bit Standard Intra29.97p only	4:2:2 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-AVC S YCC422 10 bit Standard Intra25p only	4:2:2 10-bit	125	56.3	1h 4m	2h 9m	4h 19m	8h 38m	V30
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
59.94p / 50p
XF-AVC S YCC422 10 bit Standard Intra59.94p only	4:2:2 10-bit	300	135	27m	54m	1h 48m	3h 36m	V60
XF-AVC S YCC422 10 bit Standard Intra50p only	4:2:2 10-bit	250	113	32m	1h 4m	2h 9m	4h 19m	V60
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
119.88p / 100p
XF-AVC S YCC422 10 bit Standard Intra119.88p only	4:2:2 10-bit	600	270	13m	27m	54m	1h 48m	V90
XF-AVC S YCC422 10 bit Standard Intra100p only	4:2:2 10-bit	500	225	16m	32m	1h 4m	2h 9m	V90
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	70	31.5	1h 55m	3h 51m	7h 43m	15h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	70	31.5	1h 55m	3h 51m	7h 43m	15h	V30
179.82p / 150p
XF-AVC S YCC422 10 bit Standard Intra179.82p only	4:2:2 10-bit	900	405	9m	18m	36m	1h 12m	CFexpress
XF-AVC S YCC422 10 bit Standard Intra150p only	4:2:2 10-bit	750	338	10m	21m	43m	1h 26m	CFexpress
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	105	47.3	1h 17m	2h 34m	5h 8m	10h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	105	47.3	1h 17m	2h 34m	5h 8m	10h	V30
1080p 1920x1080
23.98p
XF-AVC S YCC422 10 bit Standard Intra	4:2:2 10-bit	120	54	1h 7m	2h 15m	4h 30m	9h	V30
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
29.97p / 25p
XF-AVC S YCC422 10 bit Standard Intra29.97p only	4:2:2 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-AVC S YCC422 10 bit Standard Intra25p only	4:2:2 10-bit	125	56.3	1h 4m	2h 9m	4h 19m	8h 38m	V30
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
59.94p / 50p
XF-AVC S YCC422 10 bit Standard Intra59.94p only	4:2:2 10-bit	300	135	27m	54m	1h 48m	3h 36m	V60
XF-AVC S YCC422 10 bit Standard Intra50p only	4:2:2 10-bit	250	113	32m	1h 4m	2h 9m	4h 19m	V60
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	50	22.5	2h 42m	5h 24m	10h	21h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	35	15.8	3h 51m	7h 43m	15h	30h	V30
119.88p / 100p
XF-AVC S YCC422 10 bit Standard Intra119.88p only	4:2:2 10-bit	600	270	13m	27m	54m	1h 48m	V90
XF-AVC S YCC422 10 bit Standard Intra100p only	4:2:2 10-bit	500	225	16m	32m	1h 4m	2h 9m	V90
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	100	45	1h 21m	2h 42m	5h 24m	10h	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	70	31.5	1h 55m	3h 51m	7h 43m	15h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	70	31.5	1h 55m	3h 51m	7h 43m	15h	V30
179.82p / 150p
XF-AVC S YCC422 10 bit Standard Intra179.82p only	4:2:2 10-bit	900	405	9m	18m	36m	1h 12m	CFexpress
XF-AVC S YCC422 10 bit Standard Intra150p only	4:2:2 10-bit	750	338	10m	21m	43m	1h 26m	CFexpress
XF-AVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-HEVC S YCC422 10 bit Standard LGOP	4:2:2 10-bit	150	67.5	54m	1h 48m	3h 36m	7h 12m	V30
XF-AVC S YCC420 8 bit Standard LGOP	4:2:0 8-bit	105	47.3	1h 17m	2h 34m	5h 8m	10h	V30
XF-HEVC S YCC420 10 bit Standard LGOP	4:2:0 10-bit	105	47.3	1h 17m	2h 34m	5h 8m	10h	V30

GB per hour = bitrate in Mbps x 0.45. Card times use 95% of the labelled size (formatting and file overhead). Card speed: V30 up to 240 Mbps, V60 up to 480, V90 up to 720, CFexpress above that. * Canon's stated minimum for that format, which is stricter than the bitrate alone needs. Scroll the table sideways on a phone.

Memory cards

Card types: CFexpress Type B + SDXC (UHS-II)
Cinema RAW Light Standard RAW, Cinema RAW Light Light RAW: CFexpress 2.0 Type-B [400MB/sec. or more]; SD not supported
Cinema RAW Light Light RAW: CFexpress 2.0 Type-B [200MB/sec. or more]; SD not supported
XF-HEVC S YCC422 10 bit Standard LGOP, XF-HEVC S YCC420 10 bit Standard LGOP, XF-AVC S YCC420 8 bit Standard LGOP, XF-AVC S YCC422 10 bit Light Intra, XF-AVC S YCC422 10 bit Standard LGOP, XF-AVC S YCC422 10 bit Standard Intra: CFexpress 2.0; SD U3
XF-AVC S YCC422 10 bit High Quality Intra, XF-AVC S YCC422 10 bit Standard Intra, XF-AVC S YCC422 10 bit Light Intra, XF-HEVC S YCC422 10 bit High Quality Intra, XF-HEVC S YCC422 10 bit Standard Intra, XF-HEVC S YCC422 10 bit Light Intra: CFexpress 2.0; SD not supported
XF-AVC S YCC422 10 bit High Quality Intra, XF-AVC S YCC422 10 bit Light Intra, XF-AVC S YCC422 10 bit Standard LGOP, XF-AVC S YCC422 10 bit Standard Intra, XF-HEVC S YCC422 10 bit Standard LGOP: CFexpress 2.0; SD V90
XF-AVC S YCC422 10 bit High Quality Intra, XF-AVC S YCC422 10 bit Standard Intra, XF-AVC S YCC422 10 bit Light Intra, XF-AVC S YCC422 10 bit Standard LGOP, XF-HEVC S YCC422 10 bit Standard LGOP, XF-HEVC S YCC420 10 bit Standard LGOP, XF-AVC S YCC420 8 bit Standard LGOP: CFexpress 2.0; SD V60

Recommended cards for the Canon EOS R6 Mark III

Canon's own or recommended cards first, then the most-reviewed cards on B&H for this camera's media. SD cards show how many of this camera's modes they can record; for other cards, compare the speed with the requirements above.

CFexpress Type BLexar 512GB Professional DIAMOND CFexpress 4.0 Type BSpeed: CFexpress 4.0 Type B, VPG400 (3700 MB/s read / 3400 MB/s write)
Amazon B&H
CFexpress Type BProGrade Digital 512GB CFexpress 4.0 Type B GoldSpeed: CFexpress 4.0 Type B, VPG200 (3400 MB/s read, 850 MB/s minimum sustained write)
Amazon B&H
SD, V90Sony 256GB SF-G TOUGH UHS-II SDXCHandles: 86 of 125 normal recording modes; the rest need a faster card
Amazon B&H

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Slow motion

Not published by Canon

Questions

How long does a 128 GB card last in the Canon EOS R6 Mark III?

From 6 min in its heaviest mode to 7 hr 43 min in its lightest. In XF-AVC S YCC422 10 bit Standard LGOP at 29.97p (4:2:2 10-bit, 150 Mbps) it holds about 1 hr 48 min. Times use Canon's published bitrates and 95% of the card's labelled size.

What memory card does the Canon EOS R6 Mark III need?

It records to CFexpress Type B + SDXC (UHS-II). For its top mode (2,600 Mbps) you need CFexpress; Canon lists CFexpress 2.0 Type-B [400MB/sec. or more]; SD not supported. Lighter modes work with slower cards; the table on this page lists the card speed for every mode.

How much storage does an hour of 4K take on the Canon EOS R6 Mark III?

Between 45 GB and 810 GB per hour, depending on the format and bitrate. XF-AVC S YCC422 10 bit Standard LGOP at 29.97p (4:2:2 10-bit, 150 Mbps) uses 67.5 GB per hour.

Can the Canon EOS R6 Mark III record slow motion in camera?

Canon does not publish an in-camera slow-motion mode for the Canon EOS R6 Mark III.

Sources

Bitrates and card requirements: cam.start.canon/en/C022/manual/html/UG-11_Reference_0090.html
cam.start.canon/en/C022/manual/html/UG-04_Shooting_0050.html
cam.start.canon/en/C022/manual/html/UG-04_Shooting_0090.html
Checked: November 11, 2026
How we calculate: GB per hour = Mbps x 0.45. Card time = 95% of the card size / GB per hour. Real files can differ by a few percent (audio track, file overhead, card format).

Spotted a wrong number? Tell us and we'll check it against Canon's documents.