| Author | Message | ||
     Scott soland Rating: N/A |
Hello  I need to find people who can take a HD camcorder and sync them.Please contact me. Scsoland@aol.com | ||
| M.H. Rating: N/A |
Do you need this ?: http://www.digi-dat.de/produkte/index_eng.html#stefraLANC | ||
| Robert Blouin Rating: N/A |
What cameras would you reccomend for the stefraLANC? Sony HDV? | ||
| Scott Scoland Rating: N/A |
Ok, here is the war between the brands as I see it.I first looked at the Sony HDR-HC1.Its small and lightweight. It can operate at lower light conditions. I then looked at the big boy, the FX1. Works better at high light levels. It has more bells and whistles. Then I looked at the pro version of the FX1, the HDR-Z1U. Its a 3 chipper.There is an updated version that is CMOS single Chip calle the HDR A1U. All the sony products have adopted the 1080i (interlaced) standard. The main problem is I need interchangable lenses so Sony is out. I then look at JVC HD camcorders. They have a long history of having interchangable lenses. They have the other way to do HD and thats the 720p (progressive)method. I looked at the pro line. It is just about ready to be released by the end of August. Its the JVC-GY-HD100. It has interchangable lenses. "Great", I tell myself. If you believe that progressive is the way to go For HD, then this might be the one I want to twin. However,(yes, you knew there was going to be a "however") There is no remote so you can not probably use the Stefralanc( http://www.digi-dat.de/produkte/index_eng.html ) #stefra LANC system for controlling two cameras at the same time. I found out it does not have the pro industry standard of a BC connectot, or remote control or genlocking built in. I was told that they will have a studio version come uout that will have genlock and BNC connectors. I wondered aloud why does JVC make a pro camera with consusmers RCA jacks. I also found out that noone yet makes a multiplexer for High Definition cameras. Newtek, the famed developer of the video toaster is a year away from production to a digital switcher capable of dealing with HD video. Lets face it folks, HD is in and old non HD is dead. Who here is going to go out and buy a non HD TV? Who here wants to buy non HD video equipment? It has been more than frustrating for me to talk to so many people with all of them saying about the same thing "Just Wait" ; "Its just down the road" ; "we are working on a prototype" This is not the "bleeding edge", this is about a year to two years away from the bleeding edge. Hey, want to have fun ? Call up JVC and ask them how they propose to link two JVC GY HD100's. I was told to use the panasonic "genlock switcher". Then I called up Panasonic and all I heard was "Whats that? No, we don't have a thing called a genlock switcher. And on and on and on. Well, I was told that if you do non-linear editing then maybe you don't need to be genlocked. I am new at this game of genlocking and twinning HD Camcorders. If any of you out there wants to weigh in here and either set me straight or point me in the right direction then feel free. I am treading water here big time. | ||
| Scott Soland Rating: N/A |
I checked out the http://www.digi-dat.de/produkte/index_eng.html page on using Lanc or ACC. I am a bit concerned about what they call missync which refers to sync drift. Genlocking seems to be more precise. I am looking into genlock switcher to see if they can genlock cameras without genlock. I wonder if there is a way to make the cameras do true genlock with out the genlock circuit being already in the camera. I am starting to think that going backward in technology will do the job better like two super 16 mm mechanically phase locked to each other with flexible cables and get a niagra to record sound. At least I would get better quality than digital video. (Let's see if anyone thinks digital is better than film) | ||
| Scott Warren Rating: N/A |
To do HD sync professionally and consistently correct, you would no longer use BNC Genlock, as that is a Standard Def technology. You need a Tri-level sync generator. Don't know if it uses BNC or not... Scott | ||
| Scott Soland Rating: N/A |
Hi Scott Its funny to address another by my own nameAnyway,can you give me more information on exactly what a tri-level sync generator is. Also do you have any idea of who might sell it? How would it hook up? Is there still a need to for a TBC(Time Based Corrector) or a black burst generator. | ||
| Scott Warren Rating: N/A |
A google search on "trilevel sync" will get you started with a number of companies selling such devices, and there is a good primer on what it is and why it's needed. If I understand it correctly, SD video using standard blackburst sync (sent as basically a standard black/empty video signal through BNC/coax connections) will sync on each individual field of each frame. This kind of tolerance is too low for HD video. It syncs on each individual line of every field of every frame. TriLevel refers to the 3-pulse identifier code being sent (a high, a low and a zero--not necessarily in that particular order). Original SD video had a 2-level pulse identifier. TBC's are needed if the sync will be degraded. This is usually more relevant with analog and/or tape-based systems. As there are so many more digital and/or disc/flash-based systems now, this will be either less and less needed, or the devices will be more and more simplified and thus easily incorporated into every device, making them invisible. You will need a BB generator if you're doing SD video, a TriLevel generator if you're doing HD video, and both if you're doing both SD and HD. Hookup can probably still be BNC/coax, but I would think there would also be SDI, Firewire, and possibly other types of connections available. Haven't done my homework on that yet... Scott | ||
| Jack F. Meihoffer Rating: N/A |
 http://www.crackheadfred.com | ||
| Petermedia Rating: N/A |
OK only a short explaination to the ste-fra. The ste-fra is not a genlock device. The system only try to let the camcorder strd in sync. The problem is that not all camera even the same model has the dame timing. This means You must select them with the ste-fra. If you find a good pair a realitic sync drift is less than 1:1000 sec. For sinple productions we use two selected HC1. The result is much better than Nuview and so on. For high professional jobs the best choice is two Cine Alta with Tristate Genlock. But rember 2 HC1 plus stefra cost you less than 4000 US$ Two Cina Alta at least much more than 100000 US$. For 90 % of our customeres the HC1 Production is the what they want comparing quality versus budget. | ||
| Werner Bloos (Wbloos) New member Username: Wbloos Post Number: 1 Registered: 2-2007 Rating: N/A |
Hi, let me add some informations to the LANC remote "ste-fra LANC": if the camcorders are selected (well even RBT does this for thier photo camaras), tested and combined to a good working pair, this camcorder pair may start at less than 1/10000s at power up and less than 0,1ms (also only 1/10000s) drift after 30 minutes - that's my recent HC1 pair I am working with! By the way: genlocking does not mean that the recording process is genlocked as well - since genlocking is only needed for studio equipment, only the output needs to be genlocked, but not the recording on the CCD chip - so even with genlocking you might notice missync if chip recording is not genlocked as well! As a conclusion of this a LANC controlled stereoscopic recording may be better than a genlocked. greetings Werner | ||
| Anmol Mishra (Zcream) New member Username: Zcream Post Number: 2 Registered: 7-2008 Rating: N/A |
Hi! I am planning to use 2x HD cameras to shoot 3D. They are non-Sony, (Canon HV20 or Panasonic HDC-SD9), so I was looking for a sync solution. Do you make a sync comparator that extracts the sync from the RCA signal outputs of the camera and gives details of sync delay and sync drift. I am planning to use a click shutter to sync the frame but I still need to know the inter-frame delay and any sync drift..That way, I can reshoot if there is too much drift.. | ||
| Werner Bloos (Wbloos) New member Username: Wbloos Post Number: 2 Registered: 2-2007 Rating: N/A |
well what you woud need is this: http://www.ledametrix.com/lcdsync/ or built your own device with a simple LED bar: http://www.ledametrix.com//syncshep/index.html greetings Werner |
