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Noel Sterrett

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  1. I've tried it and it can work until you hit a lens stop. The current at that point momentarily goes far above 1.8A and will blow the fuse. The fuse will reset once you cycle power. It might help to parallel the two 1.8A circuits, but a far better solution is to use a D-Tap: http://www.bhphotovideo.com/c/product/894513-REG/idx_md_nbv_idx_multi_d_tap_adaptor_plate.html Cheers.
  2. I sometimes use a Portabrace pad attaches with velcro to rods or a dovetail: http://www.bhphotovideo.com/c/product/752114-REG/Porta_Brace_SP_3G_Universal_Shoulder_Pad.html Cheers.
  3. Thanks. I have to find an arm first. Maybe next batch. Cheers.
  4. Both is generally best. For Lemo's, there are actually two versions: crimp and solder. I considered using crimp because the pins are so small they are nearly impossible to solder, but as I recall the crimp tool cost almost as much as my rig. Cheers.
  5. I've been soldering coax since I was 10 (a very long time ago) and I must say my experience is the opposite. I've never felt comfortable with a crimp. With solder, you can see when you have a good, shiny (not cold) solder connection. With crimps, you have to pull hard to test them. When you do, they just pull out far too often. Cheers.
  6. I'll be there Sunday afternoon to Thursday. Cheers.
  7. I have a Zephyr that is only a few months old. It's like new and has never been out of my house. I bought it for a project which will now will not start until 2015, so there's no use having it sit in the living room. Let me know if you're interested. Cheers. noel@admitonepictures.com
  8. The Alexa is 13.8 lb The Alexa Plus is 15 lb, but has built in wireless video There are many great lenses less than 4 lb I'm not saying it's ideal, but just that it can be done with careful wiring and selection of accessories. On the other hand, the Sony F5/55 ( 4.4 lb, 25W ) should be a cakewalk. Cheers.
  9. There are four wires passing through the post (Red, White, Black, Orange). I'm not sure how they are currently wired, but that could be easily changed. In any event, the Alexa draws 85W while recording to SxS. So like follow focus, it's not a continuous power draw. And as I pointed out, the wire capacities are calculated for continuous, not intermittent current. I've done the math, and I'm comfortable I could rig and fly an Alexa on a Zephyr with necessary accessories. I'm actually more concerned with my back holding up than the wiring. Cheers.
  10. As the charts above show, additional current results in higher heat. But the charts are for continuous current. A Bartech receiver, for example, takes up to 3A, but only when the motor is engaged. Otherwise, it takes only .05A. In addition, the Zephyr sled has two power paths, effectively doubling its current capacity. The Zephyr may be a stretch for an Alexa, but with careful setup, it seems quite doable. Not so sure about an F65... Cheers.
  11. The Alexa with viewfinder takes around 85W. At 24V that's around 3.5A (actuall less at 28.8 = 2 x 14.4). Shouldn't be a problem for the camera alone. Cheers.
  12. There is a Lemo which has power for the monitor and tally as well as monitor signal. I power the monitor using a D-Tap on the V-Mount plate, so I think it may be possible to replace the Lemo with a BNC. I've ordered a Lemo connector and plan to see if it will pass HD-SDI, but I'm not a Lemo fan. Cheers.
  13. Did you try lowering the H Size and V Size in the OSD Options? Cheers.
  14. While there is enough wire to move the BNC and Lemo connectors on the front of the topstage, there isn't enough to move the rear BNC to the front on my Zephyr (I tried removing the tape and tugging gently on the wire, but it didn't budge). The rear Lemo clearly doesn't have enough wire to move at all. Perhaps your Zephyr was lucky and got a bit more. In any event, I ordered a Hirose connector, and hopefully I can use it on the bottom for HD and avoid having to move the BNC's. Thanks, a rubber washer seems to work quite well. Cheers.
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