XL1 / XL1S focus hunting backfocus problems - Page 10 at DVinfo.net

Go Back   DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon HDV and DV Camera Systems > Canon XL and GL Series DV Camcorders > Canon XL1S / XL1 Watchdog

Canon XL1S / XL1 Watchdog
Can't find it on the XL1 Watchdog site? Discuss it here.


Reply
 
Thread Tools Search this Thread
Old May 23rd, 2003, 12:55 PM   #136
Slash Rules!
 
Join Date: Apr 2002
Location: Houston, Texas
Posts: 4,723
What are the official specs concerning focus for the 16x manual? What's the closest you can get fully zoomed in and still focus? Full Wide?
Josh Bass is offline   Reply With Quote
Old May 23rd, 2003, 02:40 PM   #137
Retired DV Info Net Almunus
 
Join Date: Dec 2001
Location: Chicago, IL
Posts: 6,943
See the table at the bottom of my 16x Manual Servo review.
__________________
Lady X Films: A lady with a boring wardrobe...and a global mission.

Hey, you don't have enough stuff!
Buy with confidence from our sponsors. Hand-picked as the best in the business...Really!

See some of my work one frame at a time: www.KenTanaka.com
Ken Tanaka is offline   Reply With Quote
Old May 23rd, 2003, 06:23 PM   #138
Slash Rules!
 
Join Date: Apr 2002
Location: Houston, Texas
Posts: 4,723
I'm sorry Ken, I don't understand, does it mean at both wide and macro it focus to 5cm, or only with the macro function on? I'd still like to know the minimum focus distance for the wide setting without macro activated.
Josh Bass is offline   Reply With Quote
Old May 23rd, 2003, 06:37 PM   #139
Warden
 
Join Date: Mar 2002
Location: Clearwater, FL
Posts: 8,267
Without macro function it focus' to 1m. In macro and lens zoomed to widest angle it will focus to 50mm, about 2 inches.
__________________
Jeff Donald
Carpe Diem




Search DVinfo.net for quick answers | Where to Buy? From the best in the business: DVinfo.net sponsors
Jeff Donald is offline   Reply With Quote
Old May 23rd, 2003, 06:42 PM   #140
Slash Rules!
 
Join Date: Apr 2002
Location: Houston, Texas
Posts: 4,723
Alright, thanks. Sometimes on wide, I get close to my subject, but I can't see it any blurriness. Then, when editing, it looks a little soft. Now I know why.
Josh Bass is offline   Reply With Quote
Old May 24th, 2003, 08:38 AM   #141
Wrangler
 
Join Date: Sep 2001
Location: Northern VA
Posts: 4,298
For low cost closeup work, consider using a "closeup lens set" (really an adapter). A +1 or +2 adapter will work reasonably well with full zoom through and allow stand-off distance for lighting, etc. You can shoot from 18 inches and have a dime fill the frame. Note that depth of field will be rather small. The adapters can be rather low cost if you get a Hoya or Tiffen set, on a par with filter prices.

For a good bit more money you can buy a quality achromatic diopter adapter from source such as Century.
__________________
dpalomaki@dspalomaki.com
Don Palomaki is offline   Reply With Quote
Old May 24th, 2003, 12:28 PM   #142
Major Player
 
Join Date: Aug 2002
Location: London, Ontario, Canada
Posts: 484
I also have a B+W close up set, an NL1 and NL2, combined together gives you an NL3 equivelant. Works very well, tho not entirely zoom-through. If you were going tight, you'd use an extender instead anyways, but wide allows for very close shooting.
__________________
Andrew | Canon XL1s, ME66, Vinten Vision 3, GlideCam V16 (for sale!)
Andrew Petrie is offline   Reply With Quote
Old July 4th, 2003, 10:41 AM   #143
Tourist
 
Join Date: Jul 2003
Location: Brighton, UK
Posts: 1
Focus problem?

If I zoom in on a subject, focus and slowly zoom out, my XL1 loses focus. I was told that the early XL1 cameras have a focus problem. Is this true?
__________________
Rick Moore
Primal Video
Rick Moore is offline   Reply With Quote
Old July 5th, 2003, 07:19 AM   #144
Wrangler
 
Join Date: Sep 2001
Location: Northern VA
Posts: 4,298
Some units shipped with poorly adjusted back focus, more common with early production.

There was a firmware issue in that if you set manual focus at anything less than full zoom, it would not track as you change zoom. This was corrected a few several years ago by a firmware patch.

The other issue is that auto focus mode in general is a bit fussy about what is in the focus zone of the scene. If image content is not suitable for auto focus sensing the lens will start to hunt.
__________________
dpalomaki@dspalomaki.com
Don Palomaki is offline   Reply With Quote
Old July 5th, 2003, 03:57 PM   #145
Inner Circle
 
Join Date: Oct 2001
Location: Honolulu, HI
Posts: 2,053
Another issue is with supplementary lenses on the XL1.

I almost always have a Century 0.7 WA adapter mounted on my lens and it seems to cause a problem with back focus. The image just doesn't stay sharp throughout the zoom range.

If I take the WA adapter off, the lens works as advertised. I have two lenses, one from my original XL1 and one from the newer XL1s. The newer lens seems much more prone to this problem than the older lens. So at this point I'm relying on the older lens and have the newer lens set aside.

Dean Sensui
Base Two Productions
Dean Sensui is offline   Reply With Quote
Old July 6th, 2003, 12:46 AM   #146
New Boot
 
Join Date: Feb 2003
Location: San Francisco, CA
Posts: 6
XL1s Stock Lens Focus Problem

Hi,

I'm having problems keeping focus when I zoom out. I have my XL1s set on manual exposure and focus (gain might be auto). I'm using the stock 16x lens.

I zoom in and use the auto focus buttom to focus, but when I zoom out the picture is out of focus. I think things seem better if I focus a few feet in front of my subject, but I don't always have something to focus on if I do this.

I'm thinking of buy the 16x manual servo lens to fix this problem. Will this help?

Thanks,

Leland
Leland Jung is offline   Reply With Quote
Old July 6th, 2003, 07:00 AM   #147
Wrangler
 
Join Date: Sep 2001
Location: Northern VA
Posts: 4,298
Sounds like it may be the back focus is off. See:
http://www.dvinfo.net/conf/showthrea...&threadid=6021
for additional discussion that might partlyaddress your question.
__________________
dpalomaki@dspalomaki.com
Don Palomaki is offline   Reply With Quote
Old July 16th, 2003, 07:37 AM   #148
Major Player
 
Join Date: May 2003
Location: Bonaire, Ga.
Posts: 356
James suggestion has totally eliminated any problems (I thought I had) with my XL1S...looks like the auto settings of the Canon are a bit sad/weak...but setting using (M) focuing, setting gain to 0 and preset your WB...the camera behaves as good/better than anything I've used (love the trademark softness of the Canon glass). In the big picture of things, we/I should be avoiding the auto settings anyway....
Mark
Mark A. Foley is offline   Reply With Quote
Old August 17th, 2003, 04:41 PM   #149
New Boot
 
Join Date: Jun 2003
Posts: 16
AF

On the camera lens there is a switch AF and M. you have to set this to M. even when you have the camera in
Manual it still will try to auto focus if this switch is set to AF. i hope this helps.
Jeffrey Levenstone is offline   Reply With Quote
Old August 18th, 2003, 09:26 AM   #150
Wrangler
 
Join Date: Sep 2001
Location: Tickfaw, LA
Posts: 1,217
The camera also has to be out of "green box" mode too.
__________________
Nathan Gifford
Southern Cyclist Magazine & Productions

For quick answers try our Search!
To see me and Rob Lohman click here
Nathan Gifford 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 XL and GL Series DV Camcorders > Canon XL1S / XL1 Watchdog

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 09:27 PM.


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