GH4 SD Cards at DVinfo.net

Jody Arnott · October 30th, 2014, 04:03 AM

Hi all,

I have recently sold my Sony NEX-EA50 and purchased a GH4 to use along side my Canon C100.

I currently only own Sandisk Ultra 30MB/s SD cards. Has anyone used these with the GH4? I have a shoot this weekend and would like the use the .MOV (edit: 1080p, not 4K) 100mbit recording option (so I can shoot at high frame rate). Is this going to be too much for my SD card, should I stick to 50mbit?

Thanks for any info.

Noa Put · October 30th, 2014, 04:12 AM

If you shoot at 4K you should use faster cards to be on the safe side, not fun if your camera would stop recording on a critical moment if the sd card can't keep up. I use Kingston 64gb sdxc sda3 cards that have 90mbs read and 80mbs write speed

Jody Arnott · October 30th, 2014, 04:24 AM

Thanks Noa. At this point I'm just looking at shooting 1920x1080 100mbit. I'll shoot 4k later on when I have better SD cards.

Noa Put · October 30th, 2014, 04:42 AM

The 4k should not be the issue, the bitrate would, 4K also records at 100mbs so your cards should be fast enough to keep up.

Jody Arnott · October 30th, 2014, 04:51 AM

Well 30MB/s is about 240mbit/s so technically my cards should easily be fast enough to keep up. I guess I'll need to do a bit of testing and make sure the recording doesn't stop after a long record.

Bill Grant · November 3rd, 2014, 12:26 PM

I have used the Transcend class 10 32 GB cards and they work fine. Personally, I would only shoot 4k and up on this camera unless you want slomo.
Bill

Chuck Spaulding · November 5th, 2014, 05:16 PM

Yeah, its pretty hard to o back to shooting 1080 after shooting 4K. It provides so much possibility for reframing in post when mastering to HD.

Jody Arnott · November 6th, 2014, 02:59 PM

Just to update, I used my Sandisk Ultra 30MB/s cards to shoot in the 1080p 100mbit and 4K 100mbit modes and didn't have any issues. I haven't tried the 200mbit modes but will do soon.

Mark Whittle · November 10th, 2014, 12:16 AM

Even 200mbps is only 25MB/s (200/8=25).

It is all about the MINIMUM data rate the cards can sustain so your 30MB cards, provided they can sustain 25 continuously, (which they should) will handle 200 no problem.

If in doubt you can test your cards with utility software to measure the read/write speed.

Cheers,

Ronald Jackson · November 10th, 2014, 01:57 AM

Buy a couple of Transcend 64gb Class 3 cards. 25 quid each in UK, probably the same but dollars in the US. Dunno about Kiwi land.

"Why spoil the ship for a ha'porth of tar?"

Ron

October 30th, 2014, 04:03 AM	#1
Jody Arnott Major Player Join Date: Mar 2012 Location: Hamilton, New Zealand Posts: 747	GH4 SD Cards Hi all, I have recently sold my Sony NEX-EA50 and purchased a GH4 to use along side my Canon C100. I currently only own Sandisk Ultra 30MB/s SD cards. Has anyone used these with the GH4? I have a shoot this weekend and would like the use the .MOV (edit: 1080p, not 4K) 100mbit recording option (so I can shoot at high frame rate). Is this going to be too much for my SD card, should I stick to 50mbit? Thanks for any info.

October 30th, 2014, 04:12 AM	#2
Noa Put Inner Circle Join Date: Jun 2007 Location: Belgium Posts: 9,510	Re: GH4 SD Cards If you shoot at 4K you should use faster cards to be on the safe side, not fun if your camera would stop recording on a critical moment if the sd card can't keep up. I use Kingston 64gb sdxc sda3 cards that have 90mbs read and 80mbs write speed

October 30th, 2014, 04:24 AM	#3
Jody Arnott Major Player Join Date: Mar 2012 Location: Hamilton, New Zealand Posts: 747	Re: GH4 SD Cards Thanks Noa. At this point I'm just looking at shooting 1920x1080 100mbit. I'll shoot 4k later on when I have better SD cards.

October 30th, 2014, 04:42 AM	#4
Noa Put Inner Circle Join Date: Jun 2007 Location: Belgium Posts: 9,510	Re: GH4 SD Cards The 4k should not be the issue, the bitrate would, 4K also records at 100mbs so your cards should be fast enough to keep up.

October 30th, 2014, 04:51 AM	#5
Jody Arnott Major Player Join Date: Mar 2012 Location: Hamilton, New Zealand Posts: 747	Re: GH4 SD Cards Well 30MB/s is about 240mbit/s so technically my cards should easily be fast enough to keep up. I guess I'll need to do a bit of testing and make sure the recording doesn't stop after a long record.

November 3rd, 2014, 12:26 PM	#6
Bill Grant Major Player Join Date: May 2005 Location: Columbia,SC Posts: 806	Re: GH4 SD Cards I have used the Transcend class 10 32 GB cards and they work fine. Personally, I would only shoot 4k and up on this camera unless you want slomo. Bill __________________ Cinema Couture www.cinemacouture.com

November 5th, 2014, 05:16 PM	#7
Chuck Spaulding Trustee Join Date: Nov 2004 Location: Thousand Oaks Posts: 1,104	Re: GH4 SD Cards Yeah, its pretty hard to o back to shooting 1080 after shooting 4K. It provides so much possibility for reframing in post when mastering to HD.

November 6th, 2014, 02:59 PM	#8
Jody Arnott Major Player Join Date: Mar 2012 Location: Hamilton, New Zealand Posts: 747	Re: GH4 SD Cards Just to update, I used my Sandisk Ultra 30MB/s cards to shoot in the 1080p 100mbit and 4K 100mbit modes and didn't have any issues. I haven't tried the 200mbit modes but will do soon.

November 10th, 2014, 12:16 AM	#9
Mark Whittle Regular Crew Join Date: Mar 2003 Location: Bunbury, Western Australia Posts: 153	Re: GH4 SD Cards Even 200mbps is only 25MB/s (200/8=25). It is all about the MINIMUM data rate the cards can sustain so your 30MB cards, provided they can sustain 25 continuously, (which they should) will handle 200 no problem. If in doubt you can test your cards with utility software to measure the read/write speed. Cheers, __________________ MW

November 10th, 2014, 01:57 AM	#10
Ronald Jackson Major Player Join Date: Jul 2010 Location: Southport, United Kingdom Posts: 723	Re: GH4 SD Cards Buy a couple of Transcend 64gb Class 3 cards. 25 quid each in UK, probably the same but dollars in the US. Dunno about Kiwi land. "Why spoil the ship for a ha'porth of tar?" Ron