Dean Sensui
Forum Replies Created
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PF…
Get in contact with me at:
(my first name) (at) Hawaii Goes Fishing dot com.
This email address is intentionally goofy to prevent spam robots from bombing me. So use my first name in the email address, no spaces, etc.
Aloha,
Dean Sensui — Imagination Media Hawaii
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PF…
Aloha from a former Star-Bulletin chief photographer.
Hope you’re able to resolve your problem. And I hope it’s not a common defect as I’m about to get one of these things for our production company.
Dean Sensui — Imagination Media Hawaii
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The lithium polymer batteries used by radio-control hobbyists have been known to go off every once in a while. It’s become enough of a problem that someone came up with a bag to contain the battery as it’s charging. It’s been proven to prevent a burning LiPo battery from igniting anything nearby.
The resulting battery fires tend to flare a bit but it’s mostly the acrid smoke emitted that seemed to be the biggest problem.
Maybe lithium-ion batteries burn hotter.
Something like a surplus military steel ammo can should easily contain the fire. I don’t know if these fires are self-sustaining. If not, the enclosed ammo can would be enough to snuff out any further combustion.
Dean Sensui — Imagination Media Hawaii
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Probably because the SxS cards have such long run times.
The camera can take two 16-gig cards that will give you 100 minutes of recording time. Somewhere in that time you can eject a full card and insert a blank one.
Sony had a piggy-back HDD recorder but I believe it was only HDV.
Dean Sensui — Imagination Media Hawaii
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I would hope the NTSB and/or the TSA can come up with specifications for cases that would allow these batteries to be transported safely rather than waste time calculating metallic lithium equivalents.
Perhaps Nomex-lined, baffle-vented steel cases that can contain a small lithium fire. Keep the batteries from shorting and, if one should go off, prevent them from igniting anything nearby.
If it’s possible for hunters to transport ammo, why can’t professional camera crews transport batteries?
Lithium batteries aren’t inherently dangerous. It depends on the design. For example, A123 Systems batteries, like the ones found in DeWalt power tools, can be drilled and not explode.
Dean Sensui — Imagination Media Hawaii
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[Mark Palmos] ”
1/ i dont think one can set shutter angle AND shutter speed simultaneously… ie if you set shutter speed for 2000th and angle at 180 but leave the Menu Shutter setting saying “angle” then it appears only the angle will be changed, the shutter will be 100th. (pausing in mid pan one could see motion blur – which one would not if shooting at 2000th sec. Conversely, leaving the menu on “shutter” will mean the 180 degree angle will be ignored and it will be a 2000th of a sec exposure per frame.”Shutter angle and shutter speed are two terms for what’s essentially the same feature.
Film cameras have a disk-based shutter and the number of degrees the shutter remains open is what determines shutter speed. A 180-degree shutter is open for twice as long as a 90-degree shutter, for example.
Dean Sensui — Imagination Media Hawaii
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We did this for the 48-hour film project in Hawaii. Worked at it for 11 hours on a MacBook Pro. Not as dramatic as the meteor hit but it did get awarded best special effect.
https://basetwoproductions.com/videos/blast_final.mov
Dean Sensui — Imagination Media Hawaii
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One option is to throw them all into a sequence and you can pick & play at will.
Dean Sensui — Imagination Media Hawaii
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Per…
Here’s what I do if I’m faced with what you experienced.
Create separate keys to suit specific types of detail.
Key for the smooth or sharp edges.
Then do a separate key for frizzy hair or other types of detail.
It’s more troublesome to do it this way, but from what I understand it’s not unusual for the high-end production composite artists to do this.
Good luck!
Dean Sensui — Imagination Media Hawaii
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I have several years in prepress, having been involved in the process from the days when very few knew anything about Photoshop and color separations.
Post production is like prepress.
If you want a glossy fashion magazine cover then you’ll need to get good equipment, proper lighting, and a calibrated monitor to produce a properly color-corrected image with enough pixels to create a 200-line color separation.
If all you want is a community newsletter on newsprint, then you can get by with a cellphone camera and an open window to get a mugshot printed with a 72-line screen.
Video is very similar in that regard. Tailor your workflow to suit your end product.
If you want to shoot green screen that is absolutely convincing then you’ll have to use the right camera, get the scene lighted properly and make certain everything is configured just right. The right green or blue backdrop is important, too. You’ll need to use software that can extract a key through user-defined settings. Plus you’ll need compositing skills that can figure out what isn’t looking quite right and what to do about it.
In fact, many of those skills are applicable to composites in Photoshop.
Then on the other end of the spectrum is the typical weather report look. You don’t care if the background matches the foreground. And stray edges aren’t a problem.
If your IT guy is looking for Industrial Light & Magic results on a Wayne’s World budget, then he’s got a lot of homework to do.
Dean Sensui — Imagination Media Hawaii