Urgent -Out of Focus footage 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 March 3rd, 2015, 07:28 PM   #1
Regular Crew
 
Join Date: Dec 2005
Posts: 189
Urgent -Out of Focus footage

Hello,

Would greatly appreciate help with this.

I have some out of focus footage that I shot on a DSLR, I set the frame,
zoomed in, focused, zoomed out, re-set the frame, then recorded.

To my horror, when I looked at the footage on my computer afterwards,
my subject is pretty soft. I can't understand why this happened, it must
have unfocussed on the way out (it was my first time using the camera but
camera and lens were set to manual focus)?

I wonder if there are any 3rd party plug ins that could help with this?

I'm going to need something stronger than the built in sharpening tools in most NLEs.
Joe Riggs is offline   Reply With Quote
Old March 3rd, 2015, 07:34 PM   #2
Trustee
 
Join Date: Jan 2013
Location: Austin, Texas
Posts: 1,706
Re: Urgent -Out of Focus footage

Quote:
Originally Posted by Joe Riggs View Post
it must have unfocussed on the way out (it was my first time using the camera but camera and lens were set to manual focus)?
What do you mean by "on the way out" explicitly?

No plugin will help with this. Plan on rendering it out at a lower resolution (720p or even 480p) and a judicious use of the unsharp mask are all you can do.
Gary Huff is offline   Reply With Quote
Old March 3rd, 2015, 07:59 PM   #3
Regular Crew
 
Join Date: Dec 2005
Posts: 189
Re: Urgent -Out of Focus footage

"On the way out" - sorry, when I zoomed back out.

I know, it's the weirdest thing, I'll probably have to re shoot.

I think what happened is the lens was not parfocal and I was treating it like the good old 3 chip cameras.
Joe Riggs is offline   Reply With Quote
Old March 3rd, 2015, 08:03 PM   #4
Trustee
 
Join Date: Jan 2013
Location: Austin, Texas
Posts: 1,706
Re: Urgent -Out of Focus footage

You cannot do that. I read your post wrong. I thought you had used the magnified focus assist.

DSLR lenses aren't, by and large, parafocal. You cannot do that. You set your focal length and then use magnified focus assist to check your focus. Anything else is a crap shoot.
Gary Huff is offline   Reply With Quote
Old March 3rd, 2015, 08:09 PM   #5
Regular Crew
 
Join Date: Dec 2005
Posts: 189
Re: Urgent -Out of Focus footage

Yup, trial by fire and I got burned this time.
Joe Riggs is offline   Reply With Quote
Old March 4th, 2015, 10:09 AM   #6
Major Player
 
Join Date: Apr 2008
Location: Chicago, Illinois USA
Posts: 660
Re: Urgent -Out of Focus footage

After you set focus, you may want to place a piece of gaffers tape on the lens to secure the focus ring.
Jonathan Levin is offline   Reply With Quote
Old March 4th, 2015, 10:11 AM   #7
Trustee
 
Join Date: Jan 2013
Location: Austin, Texas
Posts: 1,706
Re: Urgent -Out of Focus footage

Quote:
Originally Posted by Jonathan Levin View Post
After you set focus, you may want to place a piece of gaffers tape on the lens to secure the focus ring.
That would seem to cause the focus ring to move just slightly as you put on the tape. If shooting wide open, even minute movement could put it out of focus. On top of that, what if you suddenly need to change focus quickly?
Gary Huff is offline   Reply With Quote
Old March 4th, 2015, 08:15 PM   #8
Inner Circle
 
Join Date: Feb 2009
Location: Brisbane, Australia
Posts: 2,261
Re: Urgent -Out of Focus footage

To really know how bad the focus is we need to see it. How about putting a clip of it up on YouTube and posting here?

Andrew
Andrew Smith is offline   Reply With Quote
Old March 5th, 2015, 12:01 AM   #9
Regular Crew
 
Join Date: Dec 2005
Posts: 189
Re: Urgent -Out of Focus footage

Thankfully, the shoot involved only one subject and once I understood the error we were able to re-shoot
right then and there, and this time in crystal clear focus!
Joe Riggs is offline   Reply With Quote
Old March 5th, 2015, 08:36 AM   #10
Major Player
 
Join Date: Jun 2008
Location: Milwaukee WI
Posts: 626
Re: Urgent -Out of Focus footage

I shot some dance recitals last summer with a rented camera and manually re-focused constantly during events and it looked great on camera LCD as well as 7" LCD connected. Got home and checked in Premiere on 24" display and HORROR, it was ALL SOFT. Every minute of it. Three 2.5-hour shows!!!!! As I was constantly checking and tweaking focus, could not be user error all the time, not possible. Further testing next day revealed that camera was not capable of crystal-clear focus. Almost but just "not quite there".

In Adobe Premiere, the UNSHARP MASK was my savior. In my case, worked out just great, although each show took about 18 hours to render just the sharpening. But well worth it. Projects saves. And I did get a full refund on that faulty rental camera!

Glad you were able to correct. 15 years ago, an assistant shot second camera on a wedding ceremony and the entire thing was way out of focus, what a nightmare that was.

Thanks

Jeff
Jeff Pulera is offline   Reply With Quote
Old March 6th, 2015, 07:26 PM   #11
Inner Circle
 
Join Date: Feb 2007
Location: Tucson AZ
Posts: 2,207
Re: Urgent -Out of Focus footage

I've had this kind of issue when I forgot to recheck/reset back focus on my JVC after transporting it and setting it up.
Jim Andrada is offline   Reply With Quote
Old March 8th, 2015, 11:36 AM   #12
Trustee
 
Join Date: Nov 2006
Location: Honolulu, HI
Posts: 1,430
Re: Urgent -Out of Focus footage

If I'm shooting on DSLR, I always shoot with peaking on. Saves me every time.
Warren Kawamoto 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 08:35 PM.


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