HDSDI to HDMI while recording.. What the latency? at DVinfo.net

Duncan Craig · April 16th, 2010, 04:31 AM

Hello all.

I'm in the market for a new client monitor for my EX1 and looking at the SmallHD DP1x. However it only has component and HDMI (I know there's a new monitor coming but it's too small). The component output of the EX1 is in a really awkward place, so I want to use the HDSDI out instead.

I thought about getting a convertor to bolt to the back of the monitor, from HDSDI to HDMI.

But as I'm also in the market for a NanoFlash it seemed that perhaps it could feed the monitor HDMI from the HDSDI signal it would record from the EX1.

(Still with me?)

Would there be a noticeable amount of lag/delay/latency if I did this?

Could I add some small battery powered speakers to the analogue out of the NanoFlash to monitor audio on record/playback too?

Cheers, Duncan.

Piotr Wozniacki · April 16th, 2010, 07:01 AM

I'm using EX1's HD-SDI -> nanoFlash -> HDMI out to my Marshall monitor, and if I understood you correctly, this is your planned scenario as well.

I can confirm there is some lag to the picture on the monitor HDMI, but nothing that would make this setup unusable or difficult to use.

Duncan Craig · April 16th, 2010, 07:12 AM

Hi Piotr, that's exactly the scenario I had envisaged.

So the lag isn't likely to be something that a director/client will notice too badly?

Thanks.

Piotr Wozniacki · April 16th, 2010, 07:26 AM

Quote:

Originally Posted by Duncan Craig

So the lag isn't likely to be something that a director/client will notice too badly?

Absolutely not, Duncan.

Alan Emery · April 16th, 2010, 07:33 AM

Hi Duncan,

I use the same setup as well (although I am using an Ikan 8000HDMI from the nanoflash HDMI connection).

My subject material is wildlife and also close up. Yesterday I was shooting extreme telephoto (Nikon Lens zoomed to 400mm on Canon XL H1s) of wood ducks on a pond. Their image filled the screen and they were swimming rapidly or fighting. The monitor made it easier than using a viewfinder. Whenever I couldn't follow the action, it was my fault, not the monitor's fault.

I also found that if as the operator and I am in a stable location, it is best if the monitor is not mounted on the camera, but instead on the tripod or a separate stand. I am in a blind, so a separate stand is out of the question. In your case using the monitor from the nanoflash feed as a client monitor would work well.

Alan

Duncan Craig · April 16th, 2010, 07:40 AM

Well, thanks gentlemen!
It looks like a great workable solution.

Kind Regards, Duncan.

April 16th, 2010, 04:31 AM	#1
Duncan Craig Major Player Join Date: Jul 2003 Location: Leeds, UK Posts: 660 Images: 10	HDSDI to HDMI while recording.. What the latency? Hello all. I'm in the market for a new client monitor for my EX1 and looking at the SmallHD DP1x. However it only has component and HDMI (I know there's a new monitor coming but it's too small). The component output of the EX1 is in a really awkward place, so I want to use the HDSDI out instead. I thought about getting a convertor to bolt to the back of the monitor, from HDSDI to HDMI. But as I'm also in the market for a NanoFlash it seemed that perhaps it could feed the monitor HDMI from the HDSDI signal it would record from the EX1. (Still with me?) Would there be a noticeable amount of lag/delay/latency if I did this? Could I add some small battery powered speakers to the analogue out of the NanoFlash to monitor audio on record/playback too? Cheers, Duncan. __________________ FCPX/LS300/EX1/FS100/GoPro/Vinten/HotHead/Jib/Track/Dedos/Lightstorm/Coollights

April 16th, 2010, 07:01 AM	#2
Piotr Wozniacki Inner Circle Join Date: Aug 2006 Location: Poland Posts: 4,086	I'm using EX1's HD-SDI -> nanoFlash -> HDMI out to my Marshall monitor, and if I understood you correctly, this is your planned scenario as well. I can confirm there is some lag to the picture on the monitor HDMI, but nothing that would make this setup unusable or difficult to use. __________________ Sony PXW-FS7 \| DaVinci Resolve Studio; Magix Vegas Pro; i7-5960X CPU; 64 GB RAM; 2x GTX 1080 8GB GPU; Decklink 4K Extreme 12G; 4x 3TB WD Black in RAID 0; 1TB M.2 NVMe cache drive

April 16th, 2010, 07:12 AM	#3
Duncan Craig Major Player Join Date: Jul 2003 Location: Leeds, UK Posts: 660 Images: 10	Hi Piotr, that's exactly the scenario I had envisaged. So the lag isn't likely to be something that a director/client will notice too badly? Thanks. __________________ FCPX/LS300/EX1/FS100/GoPro/Vinten/HotHead/Jib/Track/Dedos/Lightstorm/Coollights

April 16th, 2010, 07:40 AM	#6
Duncan Craig Major Player Join Date: Jul 2003 Location: Leeds, UK Posts: 660 Images: 10	Thanks Gentlemen. Well, thanks gentlemen! It looks like a great workable solution. Kind Regards, Duncan. __________________ FCPX/LS300/EX1/FS100/GoPro/Vinten/HotHead/Jib/Track/Dedos/Lightstorm/Coollights

April 16th, 2010, 07:33 AM	#5
Alan Emery Major Player Join Date: Feb 2008 Location: Janetville Ontario Canada Posts: 210	Hi Duncan, I use the same setup as well (although I am using an Ikan 8000HDMI from the nanoflash HDMI connection). My subject material is wildlife and also close up. Yesterday I was shooting extreme telephoto (Nikon Lens zoomed to 400mm on Canon XL H1s) of wood ducks on a pond. Their image filled the screen and they were swimming rapidly or fighting. The monitor made it easier than using a viewfinder. Whenever I couldn't follow the action, it was my fault, not the monitor's fault. I also found that if as the operator and I am in a stable location, it is best if the monitor is not mounted on the camera, but instead on the tripod or a separate stand. I am in a blind, so a separate stand is out of the question. In your case using the monitor from the nanoflash feed as a client monitor would work well. Alan