Performance in low to no light: samples at DVinfo.net

Go Back   DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon HDV and DV Camera Systems > Canon XH Series HDV Camcorders

Canon XH Series HDV Camcorders
Canon XH G1S / G1 (with SDI), Canon XH A1S / A1 (without SDI).


Reply
 
Thread Tools Search this Thread
Old November 3rd, 2006, 09:57 AM   #1
Major Player
 
Join Date: Jul 2006
Location: United States
Posts: 306
Low to no light

This XHA1 camera is designed for the ENG market, I think. Newspapers will buy these by the hundreds for web video because they're a thousand bucks cheaper than the Z1U. Churches will buy the G1's by the hundreds because they're a tenth of the price of a broadcast camera. Same for cable stations. Networks will use them in place of their PD170's. And wedding photogs need high-def and low light.

So low-light performance is really important. I've been comparing the Sony Z1U to the Canon XHA1 in low to no-light conditions.

First, to you wedding guys, this still isn't a PD170 or a 2100. Sorry.

However, it does give you about a stop more light at 12db than the Z1U at 18db, I think. However, both cameras are so customizable it's hard to say yet. You can set the canon to 18db and 36db but I haven't tried it yet.

Here's a frame grab from the Canon at 12db of gain, 1/60th 2.8, with black stretch on and nr1 and nr2 both set to medium.

I think it's pretty amazing -- very low noise.

Chuck

(frame grab from fcp, de-interlaced in photoshop and resized for aspect ratio but otherwise untouched)
Attached Thumbnails
Performance in low to no light: samples-xha1-12db-blk-strtch-nr-med.jpg  

Last edited by Chuck Fadely; November 3rd, 2006 at 07:56 PM.
Chuck Fadely is offline   Reply With Quote
Old November 3rd, 2006, 10:06 AM   #2
Trustee
 
Join Date: Jun 2004
Location: Denver, Colorado
Posts: 1,866
That does look nice. To emphasize the noise, would be interesting to see a spot(s) of light somewhere, an incandescent light, candle, street light etc. Inbetween the areas of contrast, to light up the grain, make what's hidden in the dark visible.
Tom Roper is offline   Reply With Quote
Old November 3rd, 2006, 11:22 AM   #3
Obstreperous Rex
 
Join Date: Jan 2001
Location: San Marcos, TX
Posts: 26,900
Images: 513
Split out from Initial User's review of the Canon XH-A1. Needed to stand as its own topic.
__________________
CH

Search DV Info Net | DV Info Net Sponsors | A Decade (+5) of DVi | ...Tuesday is Soylent Green Day!
Chris Hurd is offline   Reply With Quote
Old November 3rd, 2006, 07:55 PM   #4
Major Player
 
Join Date: Jul 2006
Location: United States
Posts: 306
Here's a frame grab from the XHA1 at 18db gain, black stretch and noise reduction on. Note that you have to go into the menus to get 18db; max gain is normally 12db.

To the naked eye, trees and grass are featureless black, sky is completely dark.

(I also tried it at 36db gain. It's very noisy but would be useable for news. It's way better than the Sony Z1U "hypergain" setting, but still really nasty, with muted colors.)

I'm on a mac, so the gamma might be off for some of you. Seen on component out to an HD monitor from the camera, it's bright and open.
Attached Thumbnails
Performance in low to no light: samples-xha1-18db-30th-blkstrch-nr-hi.jpg  
Chuck Fadely is offline   Reply With Quote
Old November 3rd, 2006, 09:35 PM   #5
Major Player
 
Join Date: Nov 2004
Location: Dallas
Posts: 747
Hi Chuck, thanks for taking the time to post these picts, anyway you could post side by side comparison with the Z1? either with the same settings on both camera on the same shot or adjust each camera to the same brightness and let us know what settings for each camera.
Thanks.
__________________
Khoi Pham
www.proeditproductions.com
Khoi Pham is offline   Reply With Quote
Old November 3rd, 2006, 10:40 PM   #6
Trustee
 
Join Date: Nov 2005
Location: Honolulu, HI
Posts: 1,961
Can it shoot at 30P with 1/30th shutter without resolution loss? I can deal with 1/30th shutter more easily than lots of gain or low resolution.

After seeing a review of the V1 and it's possibly poor low-light capabilities, I am again thinking about Canon.
Marcus Marchesseault is offline   Reply With Quote
Old November 4th, 2006, 01:58 AM   #7
Trustee
 
Join Date: Sep 2005
Location: Rio de Janeiro
Posts: 1,225
Quote:
Originally Posted by Chuck Fadely
Here's a frame grab from the XHA1 at 18db gain, black stretch and noise reduction on. Note that you have to go into the menus to get 18db; max gain is normally 12db.

To the naked eye, trees and grass are featureless black, sky is completely dark.

(I also tried it at 36db gain. It's very noisy but would be useable for news. It's way better than the Sony Z1U "hypergain" setting, but still really nasty, with muted colors.)

I'm on a mac, so the gamma might be off for some of you. Seen on component out to an HD monitor from the camera, it's bright and open.
You can see grain but it looks more like film grain than video noise.
Rafael Lopes is offline   Reply With Quote
Old November 4th, 2006, 06:40 AM   #8
Major Player
 
Join Date: Jul 2006
Location: United States
Posts: 306
There are frame grabs of XHA1 vs Z1U I did here: http://www.dvinfo.net/conf/showthrea...t=78773&page=2

Those were with the Canon straight out of the box at 12db gain vs Sony Z1U at 18db. Both wide open at 1/15th.

chuck




Quote:
Originally Posted by Khoi Pham
Hi Chuck, thanks for taking the time to post these picts, anyway you could post side by side comparison with the Z1? either with the same settings on both camera on the same shot or adjust each camera to the same brightness and let us know what settings for each camera.
Thanks.
Chuck Fadely is offline   Reply With Quote
Old November 4th, 2006, 09:20 AM   #9
Major Player
 
Join Date: Nov 2004
Location: Dallas
Posts: 747
Ok thanks, don't know how I missed that.
Take care.
__________________
Khoi Pham
www.proeditproductions.com
Khoi Pham 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 > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon HDV and DV Camera Systems > Canon XH Series HDV Camcorders

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 04:15 PM.


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