View Full Version : Split screen technical explanation


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Chris Hurd
October 6th, 2005, 07:15 AM
If Chris Hurd want's to break this thread up into NTSC and PAL then I invite that.Oy, that would involve some major surgery and right now is just not the best time for me as I'm curently on the road again.

Guy Barwood
October 6th, 2005, 08:26 AM
"I can't honestly see why a wedding would be shot at anything other than 60i. There is no real reason for a 24p wedding!"
24p is about the only feature I personally don't care about, why a fixation on only shooting in 24p? there is much more to this camera than just 24p. Other than shooting in 25p as standard, there is also 576/50p for some fantasict high quality 16:9 slo mo. That interests me for the morning shots with the bride and photoshoots for those not wanting to pay for full HD.

As Douglas talked about, I am one of these wedding videographers who was very excited about getting a HD101 and honestly feel let down for now. If SSE was fixed tomorrow, I wouldn't hesitate once I sell the DV500.

If you want to see what I typically work towards, watch one of my samples here:

http://www.planetliquid.us/web_video/Hamstor_Siobhan_tiny.wmv

I would actually prefer the HD101 be a bit larger in the body. Presence at a wedding is important as it helps to keep all the Uncle Arthurs out of your way, and as stupid as it is to us, bigger cameras impress consumers so it sets a level of respect even with photographers who often consider videographers second class citizens. Shooting with a handycam is certainly possible, many do it (as have I), but I do find you have to fight for position more...

Speaking to another event videographer two nights ago, he was really impressed with the HD101. He was aware of SSE but thought it was only a problem with the LCDs. When I explained it was recorded to tape as well, he said in an instant the likes of "forget it then, that's a show stopper".

Fortunately for JVC they can get away with this a little for now, after all there are really no compeditors for what the HD100 can do on paper. That won't last forever, and reputations are being tarnished.

Come on young Victor, let us know how things are going back in R&D! ;)

Mikael Widerberg
October 6th, 2005, 09:58 AM
For me the case is a little bit different (and maybe not so comon) becouse I bought my 100E from New Zeland, living in Sweden. It would be stupid of me to send it back from Sweden not nowing that the SSE-problem was solved. It would also cost me about 400 USD.

Michael Maier
October 6th, 2005, 12:03 PM
It's not really my business, but why would you buy it from NZ, specially with all the issues which were arising? Was it that much cheaper, that it was worth it to take the risk? I take you probably got it from Globalmediapro?

Mikael Widerberg
October 6th, 2005, 02:17 PM
It's not really my business, but why would you buy it from NZ, specially with all the issues which were arising? Was it that much cheaper, that it was worth it to take the risk? I take you probably got it from Globalmediapro?

Yes, it was that much cheaper, at least for me (living on the edge). And also, it was available one month earlier than in Sweden. And offcource it is a wery sexy and appealing machin. When I bought/orderd it, the issues was not to be nown, otherwise i would have probably canceld my order. Yes, I got it from GMP, very good dealer.

I just tought the cam at least would be what it was supposed to be from the start. I took a chans, but this was not what I expected, at all.


This must be far more embarising for JVC than my spelling is for me.

Robert Castiglione
October 7th, 2005, 06:46 AM
Mikael, you might want to try the suggestion made by steve to only use manual white balance - I have been having a go today and it really does seem to make a big difference. Tell us how you get on.

Once (if?) a definitive solution emerges it might actually be cheaper to see if you can pay for JVC Sweded to service it.

Rob

Mikael Widerberg
October 7th, 2005, 01:33 PM
Mikael, you might want to try the suggestion made by steve to only use manual white balance - I have been having a go today and it really does seem to make a big difference. Tell us how you get on.

Once (if?) a definitive solution emerges it might actually be cheaper to see if you can pay for JVC Sweded to service it.

Rob

Unfortunately I can not say it makes much of a different at all. Have you tested your cam against a withe wall indoor?

Yes, if that solution emerges I will see if JVC Sweden can fix it for a low cost, that was my plan.

For now I am okay sins my first project is filmed outdoor in realy good lightning.

Thanks anyway for your help!

Michael Maier
October 7th, 2005, 04:53 PM
Yes, it was that much cheaper, at least for me (living on the edge).

Even after importing duties? Would you mind saying how much it cost you after all said and done?

John Mitchell
October 8th, 2005, 07:19 AM
I have a simple rule of thumb for importing something from overseas which I picked up when researching my Nikon D70 stills camera:

1. Is it so much cheaper that I can live without the warranty and get it fixed?
If it satisfies that test it then has to pass another - is it a complicated piece of equipment requiring specialised service? If the answer to that question is yes then I normally wouldn't import unless it was a proven piece of technology.

As a result I bought my Sony DSR1500AP from GMP (and the SDI card for it from B&H) - I saved over $AUD4,000 on the best offer going around in Aus. That outweighed the value of any warranty, plus it was proven technology from a company that I know I can get 3rd party service from.

In contrast I bought my D70 when it was still fairly new on the market - I could have saved roughly $AUD300 or about 15% buying on eBay from Hong Kong or from Adorama/B&H, but I checked the forums first and was reading way too many reports about faulty units. The camera hasn't missed a beat but I never regretted my decision to buy locally. By that philosophy I also bought the JVC locally and JVC are about to replace my unit with a brand new one due to a fault.

So 20/20 hindsight and all - but I think it's not a bad rule. I had no problems buying batteries and a charger from GMP - these are very basic technology and if they break down I've saved enough to get em fixed locally, plus of course being in Australia it won't cost me $400 to send back to NZ (ow that hurts Mikael)

John Mitchell
October 8th, 2005, 07:49 AM
Here's the latest technical snippet - SSE can be temperature dependent. SSE is also apparently very dependent on the automated setup these cameras go through at the factory (that is my info anyway although I know it's at odds with Steve Mullen's - that simply means we're talking to different units at JVC, half a world apart).

. It is our (perhaps unfounded?) understanding that the US units were being delayed while an extensive quality-control check was implemented. So Steve takes the position that reports from non-US cameras are not necessarily relevant to US purchasers, and I think he does have a point. However it goes forward, though, it should be reasonable to say that what US customers are experiencing is the most up-to-date, most thoroughly quality-checked versions.


My most up to date information is that JVC are still experiencing problems in QC with this unit. JVC are replacing my camera with a brand new unit due to a fault, and I learnt they are having issues (excessive SSE) finding well setup new units.

If it really is a matter of how they are set up at the factory that leads me to hope that JVC will eventually have a technical fix to this problem short of replacing the scanning circuitry with a better design.

Robert Niemann
October 8th, 2005, 09:40 AM
SSE can be temperature dependent.Does that mean, that the JVC is a winter only camera? Or exclusive for summer shots? :-)

Marty Baggen
October 8th, 2005, 10:23 AM
Time to start beating my dead horse again....

If temperature is a problem, are we talking environmental temperature (external), or is the problem stemming from the relatively high temperature the chips themselves are generating?

In the final analysis, we may find that 1/3", HD, progressive chips are going to have some serious design challenges due to their density.

IF temperature is the root cause, any camera utilizing this CCD design, could see performance and lifespan issues.

Steve Mullen
October 8th, 2005, 02:31 PM
Here's the latest technical snippet - SSE can be temperature dependent.

So now instead of actual experience or data -- we have "technical snippets."

Which is followed by posts that start talking as though this "snippet" were fact. Which leads to our poor horse being dragged out of its grave.

I assume a snippet is a full stop below an old fashioned rumor. :)

Douglas Spotted Eagle
October 8th, 2005, 02:58 PM
Time to start beating my dead horse again....

If temperature is a problem, are we talking environmental temperature (external), or is the problem stemming from the relatively high temperature the chips themselves are generating?

In the final analysis, we may find that 1/3", HD, progressive chips are going to have some serious design challenges due to their density.

IF temperature is the root cause, any camera utilizing this CCD design, could see performance and lifespan issues.

Marty, I might have an answer for you. I've got my HD100, and it's been damn cold at night already, dipping to the low 20's and high teens. I'll leave it out in the car in a box, and we'll see how it does in the a.m.

Marty Baggen
October 8th, 2005, 03:47 PM
So now instead of actual experience or data -- we have "technical snippets."

Which is followed by posts that start talking as though this "snippet" were fact. Which leads to our poor horse being dragged out of its grave.

I assume a snippet is a full stop below an old fashioned rumor. :)

I appreciate the sarcasm, but with no offical comment from JVC, and many of us contemplating a purchase, I think there is plenty of license to at least throw out some intelligent theories.

You have used your share of conjecture as well... and it to be honest, I think it is thought-provoking and insightful.... but your perspective doesn't escape the "technical snippet" label.... and that's not a bad thing!

Speaking only for myself, I am simply trying to make a smart purchase.

Steve Mullen
October 8th, 2005, 05:37 PM
Speaking only for myself, I am simply trying to make a smart purchase.

Why not buy from B&H who give you 7-10 days to try the camera -- and give you a great price?

I'll be in LV next week and I'll try leaving it in the sun for an hour and then shoot as I suspect if there are is any temperature issue this should expose it.

Now I don't think it will be a CCD sensitivity -- although they likely get hot. It is most likely the 6 A/D converters. One hopes each L/R pair is in one chip to minimize temperature differences.

Of course, we need to keep within JVC temperature guidelines.

Marty Baggen
October 8th, 2005, 07:10 PM
Steve... see if performance is affected by having the camera operational for an extended amount of time.

It looks like we have a good explanation for the SSE on another thread.

John Mitchell
October 9th, 2005, 09:20 AM
Does that mean, that the JVC is a winter only camera? Or exclusive for summer shots? :-)

That's quite amusing Robert. Seriously it meant neither. I apologise but by temperature dependent I meant some cameras (not all) are not being properly set up to operate without SSE over the whole expected operating temperature spectrum for the camera. My bad - I didn't bother to explain - I was running short of time.

During the setup process, the the ability of the circuits to balance both sides of the screen is supposed to be tested over a range of operating temperatures - from here on in I'm just guessing - if that's not done properly the camera may past QC in the factory but not in the real world.

It does not mean that SSE may be more or even less prominent in hot conditions or cold conditions, although I wouldn't rule that out. Steve - it may even mean your camera works better in hot conditions, although the ambient temperature would probably have to be pretty high to make a difference to the operating temperature of the circuit. I do know the JVC engineer was complaining that many cameras in the latest shipment had not been set up properly and therefore he was rejecting them.