HVR-V1 Too much noise at DVinfo.net

Go Back   DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony HDV and DV Camera Systems > Sony HVR-V1 / HDR-FX7

Sony HVR-V1 / HDR-FX7
Pro and consumer versions of this Sony 3-CMOS HDV camcorder.


Reply
 
Thread Tools Search this Thread
Old April 1st, 2008, 06:40 PM   #1
New Boot
 
Join Date: Mar 2008
Location: São Paulo SP
Posts: 14
HVR-V1 Too much noise

Hello,

I've recorded a video using the 24p mode, with NO gain, 1/24 shutter. I've captured using the ProRes easy setup in the FCP 6.0.2.
My first impression, is that the image has a lot of grain, and i don't know why.
Second, the video came with 30fps (29,98) and no with 24p, as it would be.
Does anyone know what i'm doing wrong?


Thanks,
Mauro.
Mauro Moreira is offline   Reply With Quote
Old April 1st, 2008, 07:06 PM   #2
Inner Circle
 
Join Date: Nov 2006
Location: Tallahassee, FL
Posts: 4,100
What were you shooting, and how did you light it?

More light = less noise.
Perrone Ford is offline   Reply With Quote
Old April 1st, 2008, 07:21 PM   #3
New Boot
 
Join Date: Mar 2008
Location: São Paulo SP
Posts: 14
i was shotting in low light indoor, outdoor with daylight and by the night too, but with some lights.
The point is that there's a lots of noise in the low light and a relative noise in the more lighted and daylight shoots.
In low light, the shadows wouldn't have to be more black, or the camera creates this noise in low light?
Mauro Moreira is offline   Reply With Quote
Old April 1st, 2008, 08:46 PM   #4
Regular Crew
 
Join Date: Jul 2007
Location: Singapore
Posts: 173
There are many posts about V1 user...should see what they say

http://www.dvinfo.net/conf/showthrea...ight=low+light
__________________
Edit on Adobe Creative Suite Production Premium CS5 Mac 64BIT
K.C. Luke is offline   Reply With Quote
Old April 1st, 2008, 08:49 PM   #5
Inner Circle
 
Join Date: Sep 2003
Location: Portland, Oregon
Posts: 3,259
If the camera is new to you, is it possible that you made a mistake in operation and recorded with gain? Seems like this is the only (?) possibility to explain noise in the dark areas, unless the cam itself has a problem.

Not only do you need to be shooting manually, the gain display has to be visible in the viewfinder/lcd and reading "0" to actually have no gain applied.

24p on the V1 is embedded and recorded in a 1080i 29.97 stream (pulldown added). This is what your NLE will see the video as. Perhaps this is fine for your use, or, you may pull out the extra frames. Sorry, I've not been using FCP with my V1, but a forum search or google search will turn up the workflow for removing pulldown.
Seth Bloombaum is offline   Reply With Quote
Old April 2nd, 2008, 08:53 AM   #6
New Boot
 
Join Date: Mar 2008
Location: São Paulo SP
Posts: 14
I'm sure that i didnt shoot with gain. I'll try to put some videos in the internet to compare.
Ps: I have exported to a DVD and playned in a normal tv, and the noise seemed to be lower, but, instead of it, theres a little bit of some "blur".

Thanks.
Mauro Moreira is offline   Reply With Quote
Old April 2nd, 2008, 09:46 PM   #7
Major Player
 
Join Date: Nov 2006
Location: Placentia, Calif
Posts: 549
I have a V1 and am totally unsatisfied with my 24p shooting. try this, shoot 1080i, get yourself Cineform NEO HDV capture as cineform avi deinterlaced, convert in your NLE, I use Vegas, as 29.97 or 24.97 progressive. edit as progressive, and render as mpeg4 at least 3 mbps, up to 6 mbps. I have used cbr and vbr with good results. my clips are coming out very good using this. Even when I render as mpeg2 for dvda and make a dvd the results are very good, never with a clip shot in 24p in the camera.
Hugh Mobley is offline   Reply With Quote
Old April 3rd, 2008, 09:57 AM   #8
Regular Crew
 
Join Date: Sep 2006
Location: Portland, Oregon
Posts: 101
also, try 30P. it's a great hybrid look.
Justin Zimmerman is offline   Reply With Quote
Old April 23rd, 2008, 04:32 PM   #9
New Boot
 
Join Date: Mar 2008
Location: São Paulo SP
Posts: 14
Samples

Now i've uploaded a demo of the clip, it does not have any filter. Take a look.
http://www.vimeo.com/932892
Mauro Moreira is offline   Reply With Quote
Old April 24th, 2008, 10:29 AM   #10
New Boot
 
Join Date: Mar 2008
Location: São Paulo SP
Posts: 14
Noise

Does anyone noticed the "extra" noise in the darker scenes?
Mauro Moreira is offline   Reply With Quote
Old April 24th, 2008, 08:37 PM   #11
Trustee
 
Join Date: Nov 2005
Location: Honolulu, HI
Posts: 1,961
I only notice compression artifacts.
Marcus Marchesseault is offline   Reply With Quote
Old April 25th, 2008, 12:32 AM   #12
Trustee
 
Join Date: Mar 2004
Location: upper hunter, australia
Posts: 1,368
Quote:
Originally Posted by Marcus Marchesseault View Post
I only notice compression artifacts.
ditto. agree with marcus
Leslie Wand is offline   Reply With Quote
Old April 25th, 2008, 09:04 AM   #13
New Boot
 
Join Date: Mar 2008
Location: São Paulo SP
Posts: 14
Marcus,

Compression artifacts? My english is not good, but, what does that mean?
Are you talking about the compression i did for Vimeo or any other compression (maybe in the capture).
The compression is h.264 for web in Vimeo.

I've shot in 24p, i tried to capture using the FCP 6.0.2 and Apple ProRes 422 108024p but it didn't work, so the project is in 29,97fps and has some equal frames every 4 frames.

Thanks,
Mauro.
Mauro Moreira is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony HDV and DV Camera Systems > Sony HVR-V1 / HDR-FX7

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 02:31 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network