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Search: Keyword(s): ; Posts Made By: MLXXX
Forum: 3D Source Components   08-14-2016, 06:54 AM
Replies: 297
Views: 3,592
Posted By MLXXX
Well Tom I hope you have some success with high...

Well Tom I hope you have some success with high bitrate 4K uploads to Youtube. In the past I found Youtube would re-encode. What it labelled as original quality was far short of the video quality...
Forum: Movies, Concerts, and Music Discussion   07-29-2016, 08:58 AM
Replies: 105
Views: 2,429
Posted By MLXXX
In footage I saw describing the making of...

In footage I saw describing the making of Galapagos 3D it was apparent to me that the Attenborough team were very well equipped. They had at their disposal more than one professional reflection rig,...
Forum: Movies, Concerts, and Music Discussion   07-28-2016, 05:49 PM
Replies: 105
Views: 2,429
Posted By MLXXX
Yes and also for close up objects, using a wide...

Yes and also for close up objects, using a wide lens separation for the physical 3D cameras (or for the 3D conversion virtual second camera) leads to a miniaturisation effect.

It's a vexed...
Forum: Movies, Concerts, and Music Discussion   07-28-2016, 05:09 PM
Replies: 105
Views: 2,429
Posted By MLXXX
Well I'm glad for you that you enjoyed the 3D! ...

Well I'm glad for you that you enjoyed the 3D!

There appears to have been a certain polarization of views in this thread, some people liking the 3D conversion and some not. I cannot recall the...
Forum: Movies, Concerts, and Music Discussion   07-28-2016, 02:18 AM
Replies: 105
Views: 2,429
Posted By MLXXX
At...

At http://www.cinemablend.com/news/1537540/to-3d-or-not-to-3d-buy-the-right-star-trek-beyond-ticket


An over-generous assessment of the 3D quality, in my opinion.

Internally inconsistent in...
Forum: Movies, Concerts, and Music Discussion   07-27-2016, 08:45 AM
Replies: 105
Views: 2,429
Posted By MLXXX
I agree. The problem of the poor 3D effect does...

I agree. The problem of the poor 3D effect does not really lie with the theatre. In my opinion it lies primarily with the post-production conversion to 3D.

As is my usual practice, I saw this 3D...
Forum: Audio Theory, Setup, and Chat   07-03-2016, 04:15 AM
Replies: 111
Views: 3,418
Posted By MLXXX
For some classes of studies, it could indeed be...

For some classes of studies, it could indeed be useful to amalgamate test results from a number of separate but similar studies to see whether collectively there was a statistical significance that...
Forum: 3D Source Components   05-29-2016, 11:09 PM
Replies: 297
Views: 3,592
Posted By MLXXX
True, but it could help with research at home to...

True, but it could help with research at home to test how camera sync varies, e.g. when going from standby to record.


I've found that two of my mobile phones (a Samsung Galaxy Note 2, and a...
Forum: 3D Source Components   05-27-2016, 03:52 AM
Replies: 297
Views: 3,592
Posted By MLXXX
I've hit upon what I think is a good method for...

I've hit upon what I think is a good method for live testing of video sync indoors, if you have an old CRT pc monitor on hand. I was able to set custom frame rates of 48Hz and 49Hz (for testing...
Forum: 3D Source Components   05-26-2016, 08:25 PM
Replies: 297
Views: 3,592
Posted By MLXXX
I've been looking into cheap 12V fans for PCs,...

I've been looking into cheap 12V fans for PCs, that have pulse width modulation speed control and a built-in Hall-effect tachometer sensor. I suspect the PWM speed adjustments would be too coarse to...
Forum: 3D Source Components   05-26-2016, 04:24 PM
Replies: 297
Views: 3,592
Posted By MLXXX
In my post 253...

In my post 253 (http://www.avsforum.com/forum/192-3d-source-components/2349449-4k-3d-twin-rig-9.html#post44207738) I provided evidence that the parade video was off by much less less than a quarter...
Forum: 3D Source Components   05-25-2016, 09:18 PM
Replies: 297
Views: 3,592
Posted By MLXXX
Pity we don't have a schematic diagram of the...

Pity we don't have a schematic diagram of the circuitry to help answer that sort of question!
Forum: 3D Source Components   05-25-2016, 08:14 PM
Replies: 297
Views: 3,592
Posted By MLXXX
Barry, I agree with your comments that so much is...

Barry, I agree with your comments that so much is possible without perfect sync. And I agree that capturing at 4K gives extra freedom to crop and add in motion.

For 2D, I get amazed at the picture...
Forum: 3D Source Components   05-25-2016, 05:06 PM
Replies: 297
Views: 3,592
Posted By MLXXX
Well I always had strong doubts that a human...

Well I always had strong doubts that a human being would be able to push batteries in with millisecond precision; and some doubt whether in any case a perfect (hard-wired) dual power on would give...
Forum: 3D Source Components   05-24-2016, 06:25 PM
Replies: 297
Views: 3,592
Posted By MLXXX
Sounds like it would be useful to have something...

Sounds like it would be useful to have something out in the field to produce rapid motion that could be reviewed in playback using the cameras' LCD screens. I haven't been able to come up with a...
Forum: 3D Source Components   05-23-2016, 05:21 PM
Replies: 297
Views: 3,592
Posted By MLXXX
In the past, with no coordinated power up,...

In the past, with no coordinated power up, results were at times surprisingly good (esp at 30p). So if there is a batch of good results now, I'd have to wonder, could it have happened anyway? Is...
Forum: 3D Source Components   05-23-2016, 07:55 AM
Replies: 297
Views: 3,592
Posted By MLXXX
Mmmn. I wonder whether you could temporarily...

Mmmn. I wonder whether you could temporarily attach thin "jumper leads" with alligator clips between the battery compartments of the cameras; start both cameras with one set of batteries; and then...
Forum: 3D Source Components   05-22-2016, 09:57 AM
Replies: 297
Views: 3,592
Posted By MLXXX
Tom, zoom seemed to work very well. Nice...

Tom,
zoom seemed to work very well.

Nice brightness and colour. (At times the camera views differed a little in their brightness. That is not something I noticed when watching in 3D: my eyes...
Forum: 3D Source Components   05-21-2016, 05:10 PM
Replies: 297
Views: 3,592
Posted By MLXXX
Don, a slick educational video. As Tom, says, a...

Don,
a slick educational video. As Tom, says, a good refresher.

I note that at default video camera settings with auto exposure and shooting outdoors during the day, the exposure time will be...
Forum: 3D Source Components   05-20-2016, 07:16 PM
Replies: 297
Views: 3,592
Posted By MLXXX
Tom, curiosity got the better of me. I could...

Tom,
curiosity got the better of me. I could not reconcile what you wrote above with what I had seen stepping through the parade video frame by frame.

I found some suitable frames around frame...
Forum: 3D Source Components   05-19-2016, 07:57 PM
Replies: 297
Views: 3,592
Posted By MLXXX
Related questions are how to encode, how to...

Related questions are how to encode, how to distribute the 4Kvideo; and whether it will play smoothly, given the demanding bitrate of high quality 4K video.

If a very high quality version is...
Forum: 3D Source Components   05-19-2016, 10:20 AM
Replies: 297
Views: 3,592
Posted By MLXXX
My point wasn't really about drift at all. My...

My point wasn't really about drift at all. My point was the consistency crunchy obtained in initial sync values by using a controlled power on. (I had no intention of suggesting your cameras have a...
Forum: 3D Source Components   05-19-2016, 09:52 AM
Replies: 297
Views: 3,592
Posted By MLXXX
He apparently had a defective camera. Consider...

He apparently had a defective camera. Consider the exact words he used:
Crunchy:
"My cameras have about 0.7ms missynch after power-up. With additional (artificial) delay the missynch after power-up...
Forum: 3D Source Components   05-19-2016, 09:45 AM
Replies: 297
Views: 3,592
Posted By MLXXX
It appears one of crunchy's GH4s must have been...

It appears one of crunchy's GH4s must have been operating well outside normal tolerances.
Forum: 3D Source Components   05-19-2016, 09:24 AM
Replies: 297
Views: 3,592
Posted By MLXXX
Crunchy's drifted apart by 1.7mS every 2 minutes...

Crunchy's drifted apart by 1.7mS every 2 minutes but that was indeed an extremely high rate of drift, not something one would expect.

(I assume your method of arriving at a missync figure of a...
Showing results 1 to 25 of 482

 
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