four T2i for live multicam shoot? at DVinfo.net

Darrick Vanderwier · April 30th, 2010, 07:11 PM

Wondering if I could use 4 T2i cams to shoot a half hour interview recorded to the cards as well as send a feed out to a switcher to live switch a feed for projection screens. The live feed is a "byproduct" for the live audience. Also so the director has a view of all cams at once and can do a live "rough cut" of the interview that will be re-edited in post and combined with other footage to produce a 40 minute "show" that will be viewed the following week in HD.

Can you record on the T2i and send a signal at the same time? Will I be able to do this for 30 mins straight without overheating issues? (this is in a controlled environment)

Joel Peregrine · April 30th, 2010, 08:00 PM

Hi Derrick,

Should really ask this on the T2i forum because there are some differences between it and the 7d, one that applies here - the output of the T2i goes to 480i when the record button is pressed. The 7D stays 1080. It records and outputs at the same time though. And the only way I shoot non-repeatable events with T2i's (which I do) is to have a back up body at the ready so it can swap out with any one that overheats.

Darrick Vanderwier · April 30th, 2010, 10:44 PM

Joel,
Thanks a ton!
I didn't even realize we had a separate forum ( although I think I may have posted in that one several times already...)
I came here directly from the home page.
I will look into the 7D option I believe for this reason alone.
The 1080 would be much better for live switching.
Didn't know about this option.
Thanks again.

Bryan McCullough · April 30th, 2010, 10:57 PM

Won't you still have the red dot and focus box on the HDMI out?

Allan Tabilas · April 30th, 2010, 11:41 PM

Unfortunately you'll definitely have the recording red dot on the T2i and the 5D Mark II via the hdmi our composite output (don't think you'll have the focus box there though). So it may not be useful from a live recording perspective.

Darrick Vanderwier · May 1st, 2010, 02:18 PM

Can you somehow get rid of all on screen items on hdmi out?

Darrick Vanderwier · May 3rd, 2010, 10:18 PM

Thanks mods (Chris?) for moving this here. My mistake in posting in the 7D forum.
Anyone else out there shoot multicam events using T2i's run through a switcher or run to a directors booth for live stuff?
I am interested mainly for the lowlight benefits of these cameras and also for cost factors.
Also if my current JVC camera has this lens:
5.5 to 88 mm (16 x Optical Zoom) f/1.6
82mm Filter Diameter
Minimum Object Distance= 1.9 Feet/0.6m
How would I figure out what an equivalent lens (or set of lenses would be?)
ie when fully zoomed out on my JVC what lens would I need to use to get similar framed image on my T2i?
Same question for when fully zoomed in.
My uneducated guess would be a 5.5 and a 88mm but I believe I am incorrect as there is the crop frame issue at play right? Any help would be great as this is totally new ground for me.
:o)

John Wiley · May 4th, 2010, 01:38 AM

I'm gonna guess that your JVC camera has 1/3" sensors, which means it's crop factor should be around 7.2. That means your lens has a 35mm equivelant of about 39mm to 630mm (roughly). So you'd need a combination of lenses starting at 25mm and going up to about 400mm if you want to cover the same range.

Gerald Webb · May 4th, 2010, 04:59 AM

uhm, I was asking about using one of these for live shows the other day,
I fell in love with the camera until I found out it only goes for 12 min.
Thats right isnt it, it will only record for 12 mins before having to be restarted?
I'd be very grateful if someone has a hack or fix for this,
or if I just misunderstood, please enlighten me.

Chris Hurd · May 4th, 2010, 06:54 AM

Quote:

Originally Posted by Gerald Webb

Thats right isnt it, it will only record for 12 mins before having to be restarted?

Yes, that's true for any HD-equipped Digital SLR camera, whether it's the Canon EOS 550D / Rebel T2i, the EOS 7D, 5D Mk. II, 1D Mk. IV, etc. -- we try to point this fact out clearly to everyone who isn't already familiar with the way these cameras work. The 12 minute clip length limit is not a problem for traditional narrative filmmaking, but really doesn't lend itself to long-form event recording at all.

Christopher Bruner · May 4th, 2010, 09:52 PM

Thanks best info I heard today. I really thought this was a game changing camera with cheap good HD Video, but 12min may not work for many people.

Gerald Webb · May 4th, 2010, 10:02 PM

Looks like Im settled on the Panasonic GH1, only one Ive found that will record as long as your SD card will go for.
1K more than I wanted to spend though.

April 30th, 2010, 07:11 PM	#1
Darrick Vanderwier Regular Crew Join Date: Dec 2009 Location: St. Catharines Ontario Posts: 69	four T2i for live multicam shoot? Wondering if I could use 4 T2i cams to shoot a half hour interview recorded to the cards as well as send a feed out to a switcher to live switch a feed for projection screens. The live feed is a "byproduct" for the live audience. Also so the director has a view of all cams at once and can do a live "rough cut" of the interview that will be re-edited in post and combined with other footage to produce a 40 minute "show" that will be viewed the following week in HD. Can you record on the T2i and send a signal at the same time? Will I be able to do this for 30 mins straight without overheating issues? (this is in a controlled environment) __________________ www.sweetmedia.ca

April 30th, 2010, 08:00 PM	#2
Joel Peregrine Major Player Join Date: Oct 2002 Location: Wisconsin Posts: 689	Hi Derrick, Should really ask this on the T2i forum because there are some differences between it and the 7d, one that applies here - the output of the T2i goes to 480i when the record button is pressed. The 7D stays 1080. It records and outputs at the same time though. And the only way I shoot non-repeatable events with T2i's (which I do) is to have a back up body at the ready so it can swap out with any one that overheats. __________________ WeddingFilms.com>>

April 30th, 2010, 10:44 PM	#3
Darrick Vanderwier Regular Crew Join Date: Dec 2009 Location: St. Catharines Ontario Posts: 69	Joel, Thanks a ton! I didn't even realize we had a separate forum ( although I think I may have posted in that one several times already...) I came here directly from the home page. I will look into the 7D option I believe for this reason alone. The 1080 would be much better for live switching. Didn't know about this option. Thanks again. __________________ www.sweetmedia.ca

May 1st, 2010, 02:18 PM	#6
Darrick Vanderwier Regular Crew Join Date: Dec 2009 Location: St. Catharines Ontario Posts: 69	Can you somehow get rid of all on screen items on hdmi out? __________________ www.sweetmedia.ca

May 3rd, 2010, 10:18 PM	#7
Darrick Vanderwier Regular Crew Join Date: Dec 2009 Location: St. Catharines Ontario Posts: 69	Thanks mods (Chris?) for moving this here. My mistake in posting in the 7D forum. Anyone else out there shoot multicam events using T2i's run through a switcher or run to a directors booth for live stuff? I am interested mainly for the lowlight benefits of these cameras and also for cost factors. Also if my current JVC camera has this lens: 5.5 to 88 mm (16 x Optical Zoom) f/1.6 82mm Filter Diameter Minimum Object Distance= 1.9 Feet/0.6m How would I figure out what an equivalent lens (or set of lenses would be?) ie when fully zoomed out on my JVC what lens would I need to use to get similar framed image on my T2i? Same question for when fully zoomed in. My uneducated guess would be a 5.5 and a 88mm but I believe I am incorrect as there is the crop frame issue at play right? Any help would be great as this is totally new ground for me. :o) __________________ www.sweetmedia.ca

April 30th, 2010, 10:57 PM	#4
Bryan McCullough Major Player Join Date: Oct 2003 Location: Richardson, TX Posts: 842	Won't you still have the red dot and focus box on the HDMI out?

April 30th, 2010, 11:41 PM	#5
Allan Tabilas Regular Crew Join Date: Jan 2005 Location: Philadelphia, PA Posts: 81	Unfortunately you'll definitely have the recording red dot on the T2i and the 5D Mark II via the hdmi our composite output (don't think you'll have the focus box there though). So it may not be useful from a live recording perspective.

May 4th, 2010, 01:38 AM	#8
John Wiley Trustee Join Date: Oct 2008 Location: Byron Bay, Australia Posts: 1,155	I'm gonna guess that your JVC camera has 1/3" sensors, which means it's crop factor should be around 7.2. That means your lens has a 35mm equivelant of about 39mm to 630mm (roughly). So you'd need a combination of lenses starting at 25mm and going up to about 400mm if you want to cover the same range.

May 4th, 2010, 04:59 AM	#9
Gerald Webb Trustee Join Date: Oct 2009 Location: Central Coast Australia Posts: 1,046	uhm, I was asking about using one of these for live shows the other day, I fell in love with the camera until I found out it only goes for 12 min. Thats right isnt it, it will only record for 12 mins before having to be restarted? I'd be very grateful if someone has a hack or fix for this, or if I just misunderstood, please enlighten me. __________________ http://vimeo.com/livewebvideo

May 4th, 2010, 09:52 PM	#11
Christopher Bruner Tourist Join Date: Mar 2010 Location: Cleveland, OH Posts: 1	Thanks best info I heard today. I really thought this was a game changing camera with cheap good HD Video, but 12min may not work for many people.

May 4th, 2010, 10:02 PM	#12
Gerald Webb Trustee Join Date: Oct 2009 Location: Central Coast Australia Posts: 1,046	Looks like Im settled on the Panasonic GH1, only one Ive found that will record as long as your SD card will go for. 1K more than I wanted to spend though. __________________ http://vimeo.com/livewebvideo