Christian Spaeth Posted February 9, 2012 Report Share Posted February 9, 2012 just got a text from the editing room saying it's all in sync. Thanks for the tip Justin! Quote Link to comment Share on other sites More sharing options...
Marc Wielage Posted February 10, 2012 Report Share Posted February 10, 2012 just got a text from the editing room saying it's all in sync. Everybody beat me to it. You only really know if it's in or out of sync when they pull the files into an edit timeline. Live on the monitor, the timecode will look X frames out of sync. I think they all do that, just due to processing delays. I've seen some cameras with "stuttering" timecode as well, but generally it's all fine. In the event of a real problem, you usually get an actual error message (bad code, code not matched to frame rate, bad reference, etc.). Quote Link to comment Share on other sites More sharing options...
Philip Perkins Posted February 10, 2012 Report Share Posted February 10, 2012 You know, I'll admit that if the only issue they have with sync re my audio and all these new cameras is a simple TC offset (that does not drift), then I think my work is done. The combination of camera picture recording latency, monitor latency, weird frame rates (see Phantom Flex) plus all the usual issues w/ TC slates etc mean that the likelihood of things lining up exactly in sync via TC in post is kind of small. "No drift" is the new "in sync". phil p Quote Link to comment Share on other sites More sharing options...
Marc Wielage Posted February 11, 2012 Report Share Posted February 11, 2012 I've seen TC offsets for decades in dailies, going back to the late 1980s. As long as it doesn't drift or accumulate, it's OK. Constant TC offset can be compensated for, even automatically if the assistant editor knows how to do it. What's a real bitch is when it gets off about frame or two every couple of hours, particularly with the slate. By the end of a 12-hour day, the numbers are about 10 frames out. I used to see this a lot with early-generation slates -- not with the TS-3 or TS-C. Quote Link to comment Share on other sites More sharing options...
noisebhoy Posted February 21, 2012 Report Share Posted February 21, 2012 Quick question, had a test shoot today and tried to send TC to the Alexa from a 788T via cable. It seemed like the Alexa wants to run the TC on its own instead of acting as a slave and reading my TC permanently (again, not jamming but permanent TC input). So when I plugged in the Alexa showed the same TC as my recorder, but it drifted notably within less than a minute it seemed. AC wasn't sure either. Is there a hidden setting somewhere? All I found was the TC button settings. Love the Alexa, it's a boom ops best friend. Really easy to use and jam. And there tend to be fewer lamps on set when shooting at 800 ASA. Win Win Quote Link to comment Share on other sites More sharing options...
Mick Davies Posted February 22, 2012 Report Share Posted February 22, 2012 Well designed menu for audio and TC = less time spent at the camera when it's required to do so. Quote Link to comment Share on other sites More sharing options...
BudRaymond Posted February 22, 2012 Report Share Posted February 22, 2012 Richard, do you really have to return the TC setting to INT after jamming it? I left it on EXT for 5 months and jammed without ever changing the menu's with no complaints. Is that specified in the manual? Quote Link to comment Share on other sites More sharing options...
RPSharman Posted February 22, 2012 Author Report Share Posted February 22, 2012 Richard, do you really have to return the TC setting to INT after jamming it? I left it on EXT for 5 months and jammed without ever changing the menu's with no complaints. Is that specified in the manual? I think you're right, Bud. Although I did no more than hand off slates (camera house provided 1/4"-Lemo sync cables), the assistants never changed any menu settings while jamming camera. Quote Link to comment Share on other sites More sharing options...
johnpaul215 Posted August 31, 2012 Report Share Posted August 31, 2012 Has anyone used the DC output of the camera to power an RX? I usually put on something like a G2 for a scratch hop, but the job I just did wanted better audio on camera, so I was using my Zaxcom hop. I had to use batteries because didn't have the 2-pin DC plug the camera used. I think there is another DC out port, but one of them is intended to power a viewfinder or something? The Arri site just refers to it as 12v out. Quote Link to comment Share on other sites More sharing options...
Marc Wielage Posted September 1, 2012 Report Share Posted September 1, 2012 I have seen that 2-pin DC connector, and I was sorely tempted to wire up an adapter to try it. I do have a Red One power cable, but every time I've tried it, the RX would not power up and I've had to resort to batteries. We have gotten it to work provided the camera used a standard Anton Bauer pack with a regular DC connector. Quote Link to comment Share on other sites More sharing options...
johnpaul215 Posted September 1, 2012 Report Share Posted September 1, 2012 I have used the Red One DC out to power a Zaxcom RX900S and it worked fine. That's interesting it didn't work for you. I never though to look at the Epic DC out (if it is even the same connector). I never sent more than reference audio to it with a AA powered G2. Quote Link to comment Share on other sites More sharing options...
Marc Wielage Posted September 2, 2012 Report Share Posted September 2, 2012 In fairness to Red, we were trying to access a 3rd party DC jack, and for all I know, it was wired wrong (or not even connected), or had low voltage. It was "labeled" 12VDC, but who knows? The operator did not know and had never used the jack (plus it was a rental). We went with a little rechargeable LiOn pack I have that's the same size as the SR, and those will generally run at least 10 hours without a problem. Quote Link to comment Share on other sites More sharing options...
Cloud Wang Posted September 2, 2012 Report Share Posted September 2, 2012 The alexa i worked with ,there were couple one has the D-tap connector on the camera's custom v-mount ,RX900 sucks power from there,no problem. Quote Link to comment Share on other sites More sharing options...
Cloud Wang Posted September 2, 2012 Report Share Posted September 2, 2012 In fairness to Red, we were trying to access a 3rd party DC jack, and for all I know, it was wired wrong (or not even connected), or had low voltage. It was "labeled" 12VDC, but who knows? The operator did not know and had never used the jack (plus it was a rental). We went with a little rechargeable LiOn pack I have that's the same size as the SR, and those will generally run at least 10 hours without a problem. hi Marc you got a link for this lion pack you mentioned ? was looking for a lighter solution for power the RX and qrx when using a small camera. best Cloud Quote Link to comment Share on other sites More sharing options...
Jack Norflus Posted September 2, 2012 Report Share Posted September 2, 2012 you got a link for this lion pack you mentioned ? was looking for a lighter solution for power the RX and qrx when using a small camera. Cloud I use these: http://www.all-batte...gbareleads.aspx Quote Link to comment Share on other sites More sharing options...
Marc Wielage Posted September 3, 2012 Report Share Posted September 3, 2012 you got a link for this lion pack you mentioned ? was looking for a lighter solution for power the RX and qrx when using a small camera. Yes, I apologize to whoever here on the group initially recommended them, whose name I have forgotten. Here's a pic: It's just a brown brick with LiOn rechargeables permanently inside, plus a cheap wall-wart charger. The eBay link is here: http://www.ebay.com/...=item257269621f Most of the eBay dealers selling these are in China, so be prepared to wait a couple of weeks for delivery. I've been very surprised as to how reliable these are. I've powered both the D4 and the SRa receivers on them with good results. The only drawback is that they take forever to charge, like 8+ hours, but they will last a good solid 10 hours on set. Plus they only cost $28 each (with charger), are very lightweight, and are the perfect size to velcro onto the receiver. Much cheaper than any alternative I've found. Quote Link to comment Share on other sites More sharing options...
RandyHall Posted September 3, 2012 Report Share Posted September 3, 2012 The only drawback is that they take forever to charge, like 8+ hours, but they will last a good solid 10 hours on set. If it's at least eight hours, my guess is that the charger is charging the battery at 1A until it reaches the threshold voltage (in this case, 12.6V), then hold at that voltage until the current draw drops. So a 6800mAh battery would take about 8 hours that way. With a bit more information inside the battery (temperature, mostly) you could probably find a 2A or 3A charger that would do the job much faster. But if you're wrong, you're likely to burn your house down, so you didn't hear the idea from me. Quote Link to comment Share on other sites More sharing options...
AndyB Posted September 3, 2012 Report Share Posted September 3, 2012 Was it out by a second? If that was the case, that's the lag in the display and the recorded TC is actually in sync. Worked a shoot on a major drama series as a third, and when we re-jammed after lunch and the TC was off the camera crew said "it's cool, check with your mixer". Did so, and he confirmed that it displays about a second behind, but in the end all is well. Quote Link to comment Share on other sites More sharing options...
BondAudio Posted September 5, 2012 Report Share Posted September 5, 2012 About to do my first Alexa shoot next week. I'll send an audio scratch wireless via a Sennheiser G2 (getting a 5 pin xlr - 3.5mm made up). Has anyone had luck finding space to mount a receiver on the Alexa? Is there a cold shoe mount? Velcro on the side maybe?? Cheers Quote Link to comment Share on other sites More sharing options...
Vincent R. Posted September 5, 2012 Report Share Posted September 5, 2012 Velcro on top, next to the handle. Wide enough for a G2. Quote Link to comment Share on other sites More sharing options...
BondAudio Posted September 5, 2012 Report Share Posted September 5, 2012 Thanks Vincent! Quote Link to comment Share on other sites More sharing options...
Marc Wielage Posted September 6, 2012 Report Share Posted September 6, 2012 Velcro on the side maybe?? The right side has all the readouts for timecode and formatting and stuff. I have generally gone under the handle on top -- lots of space there. Quote Link to comment Share on other sites More sharing options...
McGrath Posted September 6, 2012 Report Share Posted September 6, 2012 I like the Alexa too--straightforward to set up, sounds fine, TC holds very well. No genlock or ext sync, but it doesn't seem to need it. Every RED job I'm on I wonder why they don't rent an Alexa instead..... phil p I ask the same thing, but the answer I usually get it is that the RED is owned and rented by the DP. Quote Link to comment Share on other sites More sharing options...
johnpaul215 Posted September 6, 2012 Report Share Posted September 6, 2012 I would assume the Red rents for a good bit less, though most do seem to be owner/operator packages. Quote Link to comment Share on other sites More sharing options...
BondAudio Posted September 7, 2012 Report Share Posted September 7, 2012 The right side has all the readouts for timecode and formatting and stuff. I have generally gone under the handle on top -- lots of space there. Thanks for that Mark. Hard to see from the photos if there is anything that needs access on the top. Quote Link to comment Share on other sites More sharing options...
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