Why Can not make slow motion work? at DVinfo.net

Julio Veas P. · February 14th, 2011, 12:12 PM

I have been trying to record with the over/undercranking mode in the nano with this settings:

EX1
720p60

nano set to:

MXF
I Frame: 220Mbps
3:2 Pulldown off
720p 60/50> 30/25 off
Crank _24 60

after 13 seconds of recording it says "lost footage card too slow", I have tried lovering the bit rate and the same result.

I have three cards two Delkin 64GB and a Sandisk Extreme 32GB, same effect in all of them

Am I missing something.

Any advices

Thanks

Daniel Doherty · February 14th, 2011, 12:37 PM

I hope I'm wrong but it is my understanding that the EX1 SDI can only output 60i or 24psf.

Dave Sperling · February 14th, 2011, 02:14 PM

I can't answer the slo-mo question, but I do know that when I switch my EX1 over to 720/60, my hd-sdi monitor indicates that it's getting a 720p signal, as does the nanoflash.

Julio Veas P. · February 14th, 2011, 04:04 PM

yes, sure it does and it is the way convergent design suggests you should set your camera to..... the problem is that the nanoflash seems to stop recording due to a card being too slow, however it is supposed that the bit rate is adjusted so that it fits the 220 mbit/sec, so in theory the cards are not the problem since they support 220 mbit/sec under normal recording conditions.

Julio Veas P. · February 14th, 2011, 04:16 PM

Just solved it, it works with .mov files but not with mxf.

Daniel Doherty · February 14th, 2011, 04:40 PM

Julio,

Have you confirmed that you're recording 60 progressive frames per second?

Julio Veas P. · February 14th, 2011, 04:55 PM

On page 116 of the EX1 user´s manual says that when you set 720p60 the output of the SDI is 59.94p so it should be recognized progressive by the nano if it the record/progresive is checked in the menu.

Daniel Doherty · February 14th, 2011, 05:04 PM

That's excellent news! Thanks.

Rob Dommermuth · February 23rd, 2011, 07:35 AM

Hi Guys

I have also tried to get slow mo to work with my ex1 and could not.

So I use the cameras slow mo , at least it works.

Dan Keaton · February 23rd, 2011, 11:07 AM

Dear Rob,

What firmware verion are you using?

As far as I know our slo-mo works.

Please feel free to call me today.

Support Contacts | Convergent Design

February 14th, 2011, 12:12 PM	#1
Julio Veas P. Regular Crew Join Date: Jun 2009 Location: Arica-Chile Posts: 41	Why Can not make slow motion work? I have been trying to record with the over/undercranking mode in the nano with this settings: EX1 720p60 nano set to: MXF I Frame: 220Mbps 3:2 Pulldown off 720p 60/50> 30/25 off Crank _24 60 after 13 seconds of recording it says "lost footage card too slow", I have tried lovering the bit rate and the same result. I have three cards two Delkin 64GB and a Sandisk Extreme 32GB, same effect in all of them Am I missing something. Any advices Thanks

February 23rd, 2011, 07:35 AM	#9
Rob Dommermuth Regular Crew Join Date: Aug 2009 Location: Yonkers, NY Posts: 26	Re: Why Can not make slow motion work? Hi Guys I have also tried to get slow mo to work with my ex1 and could not. So I use the cameras slow mo , at least it works.

February 23rd, 2011, 11:07 AM	#10
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Re: Why Can not make slow motion work? Dear Rob, What firmware verion are you using? As far as I know our slo-mo works. Please feel free to call me today. Support Contacts \| Convergent Design __________________ Dan Keaton Augusta Georgia

February 14th, 2011, 12:37 PM	#2
Daniel Doherty Regular Crew Join Date: Oct 2009 Location: Los Angeles, Ca Posts: 58	I hope I'm wrong but it is my understanding that the EX1 SDI can only output 60i or 24psf.

February 14th, 2011, 02:14 PM	#3
Dave Sperling Major Player Join Date: Jan 2010 Location: Tinton Falls, NJ Posts: 780	I can't answer the slo-mo question, but I do know that when I switch my EX1 over to 720/60, my hd-sdi monitor indicates that it's getting a 720p signal, as does the nanoflash.

February 14th, 2011, 04:04 PM	#4
Julio Veas P. Regular Crew Join Date: Jun 2009 Location: Arica-Chile Posts: 41	yes, sure it does and it is the way convergent design suggests you should set your camera to..... the problem is that the nanoflash seems to stop recording due to a card being too slow, however it is supposed that the bit rate is adjusted so that it fits the 220 mbit/sec, so in theory the cards are not the problem since they support 220 mbit/sec under normal recording conditions.

February 14th, 2011, 04:16 PM	#5
Julio Veas P. Regular Crew Join Date: Jun 2009 Location: Arica-Chile Posts: 41	Just solved it, it works with .mov files but not with mxf.

February 14th, 2011, 04:40 PM	#6
Daniel Doherty Regular Crew Join Date: Oct 2009 Location: Los Angeles, Ca Posts: 58	Julio, Have you confirmed that you're recording 60 progressive frames per second?

February 14th, 2011, 04:55 PM	#7
Julio Veas P. Regular Crew Join Date: Jun 2009 Location: Arica-Chile Posts: 41	On page 116 of the EX1 user´s manual says that when you set 720p60 the output of the SDI is 59.94p so it should be recognized progressive by the nano if it the record/progresive is checked in the menu.

February 14th, 2011, 05:04 PM	#8
Daniel Doherty Regular Crew Join Date: Oct 2009 Location: Los Angeles, Ca Posts: 58	That's excellent news! Thanks.