Auto focus at higher f-stops at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Open DV Discussion
For topics which don't fit into any of the other categories.


Reply
 
Thread Tools Search this Thread
Old July 13th, 2009, 05:12 PM   #1
Trustee
 
Join Date: Mar 2009
Location: Santa Clara, CA
Posts: 1,104
Auto focus at higher f-stops

Does a camcorder autofocus as well at more closed aperture positions? (assuming correct exposure)
Jim Snow is offline   Reply With Quote
Old July 13th, 2009, 05:20 PM   #2
Warden
 
Join Date: Mar 2002
Location: Clearwater, FL
Posts: 8,267
Most AF lenses use contrast as a means of determining correct focus. Various things can affect contrast, including filters, lighting, subject, and to some degree the lens opening. But given your assumption of enough light for proper exposure, then the higher f/number should not have an affect on proper AF.
__________________
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
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 > The Tools of DV and HD Production > Open DV Discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 01:39 AM.


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