Canon HV30 - USB/HDMI, No Firewire. Hmmm...

Soniclight wrote on 12/26/2008, 5:03 PM
With prices so low during this season, I'm tempted to take the plunge. The only thing that is kind of holding me back may be the way I could view (real-time) and transfer footage.

Meaning:

Since I usually do interior stuff not far from my computer or (non-HD, so no HDMI) TV, I occasionally use either one or the other as a poor-man's extra viewfinder.

In terms of computer, my old but faithful JVC SD camcorder has Firewire, which works fine. The HV30 only has USB (2.0, I assume) --- which seems like a step back = slower. Buying another PCI Express card with HDMI -- which has to be x4 -- is too expensive for me.

So here are my questions in regards to using the HV30 and USB since we're now dealing with higher resolution footage than my old 720x480 SD stuff.

1. Real-time monitoring

Will USB be fast enough? I'm hoping and guessing yes for it worked years ago with an older computer and only a cheapy webcam. But I want to make sure.

2. Footage upload/capture

Essentially same issue: is USB substantially slower than Firewire for such an application? If so, how much slower? As far as I can tell, much slower according to Mps.: 12 vs. 400/800. But then I may be misinterpreting the numbers.

Thanks.

Comments

Terry Esslinger wrote on 12/26/2008, 5:56 PM
What kind of connector is the "DV in" and "DV out" connectors as per specification page.
Patryk Rebisz wrote on 12/26/2008, 5:57 PM
It does have Firewire connection. And it's a superb camera.
Infinite5ths wrote on 12/26/2008, 6:00 PM
According to the Canon website and this review:

Canon HV30

...the HV30 has FireWire [IEEE 1394].

The pics show a mini FireWire port just above the HDMI port. So you don't have to worry.
--
Mike
Soniclight wrote on 12/26/2008, 6:12 PM
Thanks to all, incl. P@MAST3RS who sent me crop of the HV30 manual.

That's good news though it seems odd that Canon or B&H would mention USB, but not Firewire. Though maybe I'm behind the times or just plain ignorant in not knowing that an "HDV/DV" port is actually a Firewire one.

From what the CamcorderInfo Connectivity page on the HV30 says, the USB port is in the LCD cavity.
So it looks like there are both USB and Firewire ports on this baby.
Soniclight wrote on 12/26/2008, 6:33 PM
Oh, and since I'm at it, might as well ask those of you who have used the HV30:

--- While I'm somewhat aware of the limitations of each respective modality, does using 24p (or 30p for that matter) still come out at 1920 x 1080 p? Otherwise put, what will I get once the capture is popped into VP8?

Some cheaper cameras "dumb down" slower (or higher?) frame rates to 1440 x 720i.
Patryk Rebisz wrote on 12/26/2008, 6:43 PM
go to:

www.hv20.com

where you will find lots of answers to your questions.
Soniclight wrote on 12/26/2008, 6:55 PM
Thanks, Patryk. I'll have to bookmark that site if I succumb to temptation :o)

I found this a page at Eugenia's site which looks a bit scary on 24p, but perhaps VP8 is an app that will save me the hassle. Or not, dunno.

Here is the first part of that page,"Canon HV20 24p Pulldown" :

"Canon offers optional 24p support in their HDV consumer camcorders as an option (officially called “PF24″). Unfortunately, they don’t record on the tape a “pure” 24 frame stream but instead they record 18 progressive frames and 12 interlaced ones in succession, inside a 60i stream.

http://eugenia.gnomefiles.org/2007/07/13/canon-hv20-24p-pulldown[/link

Here's to hoping VP8 will lighten said burden...
richard-amirault wrote on 12/26/2008, 7:45 PM
That's good news though it seems odd that Canon or B&H would mention USB, but not Firewire.

They don't mention it because every digital camcorder has a firewire port ... at least eveyone one that I've ever seen .. not sure about those that record on HDD or memory cards .. but every tape camera I've seen has it.

Also ... firewere also has other names .. like Sony's I-Link and the generic IEEE 1394.
Patryk Rebisz wrote on 12/26/2008, 7:45 PM
Only Mac's FCP and its Compressor handles pulldown from HV20 seemlessly.

I use TMPGEnc 4.0 Express to remove it on my PC. It's a cumbersome process as after you digitize you have to spend another x amount of hours waiting for your computer to render out the files.

NEO HDV kinda works but doesn't handle chroma pulldown too well so you will be stuck with artifacts.
Soniclight wrote on 12/26/2008, 11:08 PM
OK, as I figured, I just didn't know that Firewire was called by other names.

As far as pull-down (or up -- depending on situation), way over my beanie to comprehend at this point. I'll cross that bridge when/if I need it. For the foreseeable future, I'll only be making stuff to turn into .FLV or at most plop on a DVD.

So probably somewhat moot anyway. Hopefully :o)
Coursedesign wrote on 12/27/2008, 6:15 AM
is USB substantially slower than Firewire for such an application? If so, how much slower? As far as I can tell, much slower according to Mps.: 12 vs. 400/800

USB 1.0 was 12 Mbps. It is still used for plugging in keyboards and mice, etc., but has otherwise been superseded by USB 2.0 which runs at 480 Mbps.

That is a "bigger number" than with the most common version of Firewire, FW400 at 400 Mbps, but in the USB standard the main CPU does all the work, which really slows down performance.

Even Firewire is on its way out (slowly). Apple didn't bother with Firewire on most of their recent laptops, it was USB 2.0 galore.

Even HDMI has had a stunted growth, as laptop manufacturers (Apple was #1) are shifting to DisplayPort instead. Identical functionality, with really the same signals in a smaller connector, and no high license fees to pay to the HDMI creators.

NEO HDV kinda works but doesn't handle chroma pulldown too well so you will be stuck with artifacts.

What is this about? "Chroma pulldown?" I must have been sick that day in class, could you please tell us more.

farss wrote on 12/27/2008, 6:47 AM
"Apple didn't bother with Firewire on most of their recent laptops, it was USB 2.0 galore."

I think they tried that briefly. The latest Apple laptops seem to have 1394b.

Bob.
farss wrote on 12/27/2008, 6:53 AM
Being able to remove pulldown could be really usefull if you want to make FLV or even DVDs.
From my experience crossing bridges if/when you need to is the biggest source of problems and wasted money in this game. Never assume anything.

Bob.
Soniclight wrote on 12/27/2008, 1:50 PM
Bob,

You said, "From my experience crossing bridges if/when you need to is the biggest source of problems and wasted money in this game. Never assume anything."

I only have so many neurons able to process so much new stuff -- and right now, the big decision to get an HV30 is taking up the lobal quadrants :o)

Never had to deal with pull-downs, I barely know what it actually is (sure shows my ignorance, don't it?) I just need to know that I'll be able to tackle and master that in due time. After I get the HV30.

One thing at a time...
Coursedesign wrote on 12/27/2008, 1:54 PM
In 2006 they all had fw, now only the high end models have it.