View Full Version : Damn - shoulda' got a C6 instead?
Leonard Ng March 31st, 2006, 04:31 AM I got the HD-1, having been looking for a video/photo do it all machine.
The reality is that I don't see myself ever using HD - too much hard drive space and I haven't got a HD TV anyway; I watch mostly on the computer.
Am I right in thinking that the C6 has superior low light performance (so I have read) and that it takes the same video as the HD-1 assuming the HD-1 is in standard definition mode?
If so I think I may have made a mistake and shoulda got the C6 instead.
Am I right?
Thanks all.
Chris Wells March 31st, 2006, 10:00 AM Personal opinion...
I'd rather grow into a device than out of it.
Unless your gripe is the low-lux performance of the HD1, I think you still have a good choice. You can always record at a 640X option for a smaller data stream until you need more. And as far as data storage is concerned, the HD1 files will get smaller as technology gets bigger.
That said, it's all about the individual user. Many could be happy with a digital camera like the S2 IS. I wasn't... I wanted HD. ;)
Graham Jones March 31st, 2006, 12:00 PM I haven't tried the C6 and obviously different cameras suit different people.
One thing I wouldn't agree with is that you need HD display equipment to exploit this camera.
How many 35mm 'music videos' were shown in the cinema??
HD on SD equipment looks better than SD on SD equipment - not to mention the future when everything will be HD for a few years, until it changes again.
Peter Solmssen March 31st, 2006, 05:44 PM I am enjoying the HD features of the HD1, but for others without HDTV I have been making DVDs from the HD original. As noted above, they still look better than SD originals.
So far, I have been rendering the HD videos in Quicktime HD. Unless I find a way to compress them without visible loss, they work out at 0.3 GB per minute , which means that you could back up about 15 minutes on a DVD or 30 on a dual layered DVD.
Bob Curnow March 31st, 2006, 06:07 PM Stick with the HD1... why?
The C6 does not do HD, and one day you probably will buy a HDTV and have a faster computer.
The C6 does 30fps 4:3, the HD1 can capture 60fps in 4:3 mode.
I have a C6, and it's a great camera. I absolutely love it... but I would really like the option to switch between SD and HD, like the HD1 can.
The C6 is a little better in low light, but it does suffer from 'hot' pixels. Those are pixels that are not dead, but stick out like a sore thumb in real low light video.
I would stick with your HD1.
Bob C
Marc Louis April 1st, 2006, 12:51 PM not to mention the future when everything will be HD for a few years, until it changes again.
any french here ? because as a french i can tell that i have been hearing about the "revolution" of High Definition TV for the past 20 years...with first models being put into the market in the eighties (i think it was a concept developed, back then, by french TV maker Thomson) !
the truth is that this concept never seemed to really make it to the Big Market ! so i'm a bit suspicious about the HD revolution in the way they plan it today...
I don't know about other countries but in France HDTV is advertised since a very long time...in the meantime plasma TVs has become the new-thing-that-everyones-talks-about !
But the difference between HDTV and Plasma TV's is that , people actually buy plasma TV's by the thousands...
maybe i'm wrong but for me HDTV is and old concept...unless the one HDTV they were talking back in the 80's is not the same that we have here ! at one point the "new technology of HDTV" reminded me the one of large video Laser Discs that were a Big flop !
at the end of the day, i'd rather buy a plasma TV than a HDTV (but i guess most plasma TV's today are High definition ?)
just my 2 cents
Marc Louis April 1st, 2006, 12:58 PM actually it's a bit like cable and satellite, a few years back everyone in the industry was referring to "digital" quality video...now High Definition is the "word" that is being used all the time...nevertheless, it does'nt seem to be a very different concept to me...
Graham Jones April 1st, 2006, 01:44 PM "i have been hearing about the "revolution" of High Definition TV for the past 20 years...with first models being put into the market in the eighties"
Yes, I first heard about something called HDTV in the 80's.
Obviously it didn't become a mainstream thing.
It's happening in the States, however, and dealers say it will start to infiltrate our European lives this summer.
Chris Wells April 1st, 2006, 02:52 PM 20 years ago, a full go at HDTV? Not exactly.
Today, I have a $1G recorder that produces 720 lines, an $800 computer that effectively edits the video, a $300 player that runs the video, and a $900 720p projector that displays my final results a glorious 10 feet wide. For about $3G, I've obtained a theatre class recording and playback system. Many would consider that good value.
Just over ten years ago, I purchased a Sony Handycam, countless tapes, a wide screen TV that wasn't even 3 feet wide, and a manual editor that took days of work to produce only marginal product. I spent $8G... and for only a fraction of what I have now.
Had this been available 10 years ago, you can bet I'd have bought it, even at a considerably higher price... but I couldn't. The range of products didn't exist. That's why HDTV didn't move sooner.
Graham Jones April 1st, 2006, 03:08 PM "20 years ago, a full go at HDTV? Not exactly."
That's precisely the point we're making.
"The range of products didn't exist. That's why HDTV didn't move sooner."
That's my point: when it was being designed it was meant to be imminent, but the consumer market wasn't ready..
David Kennett April 1st, 2006, 03:49 PM HDTV was pretty much a laboratory thing intil FCC assigned digital channels to broadcasters in 1997. Only now are we really seeing distribution channels blossoming. Back then hardware was waaay more expensive, with virtually no chance of actually showing HDTV programming to anybody.
I remember being awestruck at NAB, wondering when I might someday have all this in my home.... Think I'll go watch some HDTV!
Marc Louis April 1st, 2006, 04:00 PM "i have been hearing about the "revolution" of High Definition TV for the past 20 years...with first models being put into the market in the eighties"
Yes, I first heard about something called HDTV in the 80's.
Obviously it didn't become a mainstream thing.
It's happening in the States, however, and dealers say it will start to infiltrate our European lives this summer.
yeah, that's why for a geek like me, HDTV doesn't sound really like something of the future any more.
but i guess for the average Joe it can be seen as a "revolution"
can someone tell me if all plasma TVs integrate HDTV ? i tend to think both technologies come together but i'm not sure.
i don't have a plasma TV yet (i have been waiting for the past 5 years for the price to go down and the quality to rise) but if i have to renew my TV soon, the plasma criteria will be higher than the HDTV capabilities...
Graham Jones April 1st, 2006, 05:01 PM "can someone tell me if all plasma TVs integrate HDTV ? i tend to think both technologies come together but i'm not sure."
No, there are plenty of SD plasmas. Then a lot of plasmas which claim to be 'HD Ready' but aren't really HD, only 'HD-compatible' because they downconvert HD rather than reject it outright.
Then, of course, there are HD plasmas.
David, I think the difficulty with saying HD was "a laboratory thing" until '97 is that it may create the impression they were struggling with design until that date.
I reckon it was the market that couldn't fathom it all those years, not the designers.
Marc Louis April 1st, 2006, 05:37 PM ok thanx for the info graham,it will be usefull once i'll make my purchase.
Chris Wells April 1st, 2006, 11:44 PM Take care; even if the HDTV says it's compatible with 720p and/or 1080i(p?) it may not be. I saw one in Futureshop today for $1299Cdn with the stand, a 42" unit. It was a pretty impressive price, and the box said it was HDTV capable. I found out that it accepts HDTV input, but it downconverts to 550 lines internally before it displays. The salesperson said this process provides improved picture quality. Bah!
Leonard Ng April 3rd, 2006, 03:14 AM Many thanks for the replies, chappies. Yes I guess I will at some point get a HDTV so it should be worthwhile in time to come. I forgot to say I just moved up from a crappy Sony DSC-9 stills camera that took tiny mpegs!
I guess I don't like the HD version too much in that the playback files seem to stutter/stop/start on my computer (a PIV 3 ghz with 1gig ram). Am I doing something wrong?
Cheers all
Len
Chris Wells April 3rd, 2006, 08:39 AM Hi Leonard,
I'd be betting it's your video card. Check if your system has dedicated video memory, and how much it has. A lot of systems nowadays use SMA technology to produce video. It's sort of a poor-man's display where computer memory is allocated to video instead of dedicated video. The result is poor graphical performance on otherwise fast machines. You would only notice it when trying to play complex video or grahically intense games. Manufacturers use this technology because it reduces production costs and isn't detrimental to basic users.
There are two ways to check your video archetecture. The first is your computer manual or spec book. The second (and somewhat easier) is Windows. Double-click system from within control panel. Check the amount of RAM you have, compared to what you purchased. If it reads as less than you purchased, it's due to SMA archetecture. In your case, you should see either 1024MB or 1GB of available system RAM. You can tell how much your video card is using by subtracting what Windows reports you have for RAM from the 1024MB you should have. Most SMA systems thieve 32, 64, or 128MB of system RAM and all theive a minimum of 16MB.
If you have SMA archetecture in your system all is not lost. The addition of a quality video card is an inexpensive option; it will increase the performance of your graphics system to match your otherwise fast computer.
Note: Windows is known to report .99GB of system memory. If yours does this, it' a Windows issue and you don't have SMA.
Note 2: A poor-man's solution to this problem is to increase the amount of memory allocated to video through SMA. Your ownder's manual will tell you how to do this if it can be done. You can try your maximum setting and see how much it helps. If the SMA is well designed (doubtful), you'll get a performance boost.
David Kennett April 3rd, 2006, 03:54 PM Graham,
Replying to your comment:
"David, I think the difficulty with saying HD was "a laboratory thing" until '97 is that it may create the impression they were struggling with design until that date."
Actually, they were struugling with design. They had been able to make HD pictures for a number of years, but they couldn't fit into the six MHz bandwidth of the NTSC channels. They were VERY reluctant to take three channels for one HDTV channel as analog would have required. It wasn't until digital compression techniques could make much more efficient use of the RF spectrum, that things moved forward. As you can imagine, that took awhile since standards must be set, and that took agreement between a number of interested parties. They even changed the aspect ratio to 16:9 - and took a long time arguing about THAT!
There were the digital compression techniques - MPEG2 was chosen in the US with a data rate of about 19 MHz, which could be fit into the existing 6MHz channel using 8VSB modulation. An extra channel was GIVEN to each broadcaster for simultaneous digital and analog broadcasting. The analog channel must be retired in February 2009.
The satellite companies BEGAN using digital since it was more efficient. They could do anything they wanted, since they provided the receivers for their signal. Right now DirecTv is switching to MPEG4. Very expensive, since EVERYTHING must be updated. MPEG4 can compress twice as efficiently as MPEG2. Cable is switching to digital, since it is so much more efficient - but expensive to convert. Comcast in my area is only purchasing receivers capable of HD.
The distribution network was necessary before production became economically feasible. They're STILL argueing over HD DVDs!
Graham Jones April 3rd, 2006, 04:11 PM Okay, I said the market wasn't ready when I should have said that the infrastructure wasn't ready.
But as you acknowledge, the design of the HD format itself was indeed achieved considerably earlier than 1997.
That was the only point I was making! :)
Leonard Ng April 4th, 2006, 07:16 AM Chris, thank you kindly for taking the time to explain the possibilities. I shall definitely try them out - probably end up getting a new video card - the existing one is quite weak.
Cheers
Calin Brabandt April 4th, 2006, 04:19 PM <snip>
I guess I don't like the HD version too much in that the playback files seem to stutter/stop/start on my computer (a PIV 3 ghz with 1gig ram). Am I doing something wrong?
Cheers all
LenLen, There's likely nothing wrong with your computer, even if it has shared video memory. You just need the right software and configuration. Even VLC would probably work on a 3.0 GHz Pentium 4, though it uses more CPU than the best DirectShow decoders. Make sure you use the hardware overlay and acceleration and, if you have a pre-DirectX 8 video card, you probably do need a AGP video card upgrade. I've posted some suggested software elsewhere in these forums that you could try. Search for my name.
If shared memory is architected correctly, there should be no problem. The new Intel Mac minis have shared video memory. I've seen some OpenGL Cinebench benchmarks achieved by the Apple Intel Dev platforms that were amazing for an integrated graphics adapter WITH shared memory (the Intel GMA 950 video controller). They were actually faster in these benchmarks than the production Intel Macs without shared memory! So shared memory alone does not determine video performance. It's funny how Apple marketing used to 'dis competitor's systems with shared memory and now they're using shared memory Intel architecture on some of the new Intel Macs!
I was playing with the Mac mini Core Duo model and it just screams for for video playback. VLC rendered my Sanyo HD1 HD videos without a glitch (unlike Quicktime, which is H.263-challenged) and the Core Duo Quicktime played the Apple AVC (H.264) 1080i X 24fps Batman trailer without dropping frames. It used to take a fast Dual G5 Power Mac to do that! It accomplished this all with shared video memory! The mini may not be the best gamer machine, for many reasons, but it's great for video!
Chris Wells April 4th, 2006, 05:21 PM Perhaps the best recommendation to one with poor graphical performance is to test the video. Here is a test application you can run... it's free. I've never been much of an advocate for these programs, as they can be tweaked to make certain cards look better when they aren't. Still, they do suffice for limited testing.
http://www.passmark.com/products/pt.htm
You might also try this test:
http://www.futuremark.com/download/?3dmark06.shtml
Compare your results to established benchmarks (in the apps and on the net).
Colin, I agree in part, but the bulk of SMA graphics systems are poor performers. The cards you present are great performers, but they are the exception to the rule. I recall a review of P4 desktops I read on Tom's Hardware not six months ago, in which six SMA-based systems achieved the lowest video benchmarks of twenty systems tested. The top five performers in the graphics area leveraged dedicated video memory.
Also, for what it's worth, I tested nearly fourty laptops before I bought the one I have (64MB dedicated, 1 year ago) and found that systems that used SMA weren't even fast enough to complete the tests, let alone score well on them. The tests used were 3Dmark.
Calin Brabandt April 4th, 2006, 07:41 PM Also, for what it's worth, I tested nearly fourty laptops before I bought the one I have (64MB dedicated, 1 year ago) and found that systems that used SMA weren't even fast enough to complete the tests, let alone score well on them. The tests used were 3Dmark.I think 3Dmark is probably a good benchmark for gaming, but I'm not a gamer and I'm actually not really an expert in benchmarks either. I know that decent video playback is possible even without 3D video acceleration, though many modern video DSFs are certainly designed to use 3D accleration. You could google for Cinebench too. It seems to have many tests directly applicable to video playback, like OpenGL. I don't remember if it contains any tests for DxVA acceleration, however. With the right video card and software, DxVA offers the highest potential for low CPU usage. For example, 1080i mpeg2 playback runs as low as 20% CPU (with deinterlacing) on my HTPC when using DxVA. Normally mpeg2 and H.263 require roughly the same processing capability but not with DxVA because, unfortunately, H.263 decoders don't seem to be available for DxVA acceleration and the DxVA mpeg2 decoders have a significant advantage. So DxVA doesn't help us with our HD1 files (as far as I know).
In the end, even HD video playback isn't all that demanding of modern memory systems (video or main memory) , if the software is good It's mostly about CPU power for H.263 and, to a lesser extent, video acceleration. Depending on the software. SSE and SSE2 instructions can help quite a bit as does MMX, but MMX is available on nearly any recent x86 CPU.
Chris, Your assertion that most shared memory graphics subsystems score low in benchmarks seems correct to me. After all, they do it to reduce costs, but they do an lot of other cost cutting in such a machine too. Yes, the example I gave were not low cost systems and they don't perform as such, even though they use shared memory. On the other hand, even low benchmark scores don't rule out acceptable playback. Good enough is good enough so I usually "benchmark" with actual applications and software.
Leonard Ng April 5th, 2006, 11:43 AM Chris and Calin, thanks very much; I shall run those tests. To be honest, much of it goes way over my head, but this is an excellent forum for learning. I was hoping the HD-1 experience would be a little bit more idiot-proof but hey that's life :)
Many thanks again
Leonard
Graham Jones April 13th, 2006, 05:48 AM Side by side comparison of HD1 and C6 including test of each below.
Valuable because the guy shot almost precisely the same location/angle/date/time with both cams.
http://forums.dpreview.com/forums/read.asp?forum=1001&message=17525535
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