soft focus on ex3? at DVinfo.net

Jim Stamos · December 19th, 2010, 04:52 PM

i was looking into buying the ex3 but have been reading that the focus is soft. is this random or are alot of users having issues with it, also, heard issues with the backfocus holding as well.

Doug Jensen · December 19th, 2010, 10:48 PM

Quote:

Originally Posted by Jim Stamos

i was looking into buying the ex3 but have been reading that the focus is soft. is this random or are alot of users having issues with it, also, heard issues with the backfocus holding as well.

I wasn't aware there were any problems with the EX3 and I've used several of them. What's your source? Canon or Panasonic owners? :-) Seriously, where you hearing these rumors? I'm sure there have been a few lemons but it's not a widespread problem or any reason not to choose an EX3.

Ronnie Martin · December 20th, 2010, 04:37 PM

Like Doug I have shot way too many hours with the ex-3 (one gig was 140 hours) and never found that the ex-3 was not sharp. If you have removed the lens however, even just to inspect it and then put back on be sure to perform the back focus procedure. (flange back as Sony calls it).

One more thing I shoot out doors a lot with changing temperatures and the infinity position on the lens changes slightly. What I do is before each shot refocus with the view finder magnification all the way down on telephoto and make a slight correction then compose my shot. I shoot from about dusk to near midnight and find that as the temperature goes down the focus changes ever so slightly. That little bit of difference can be noticed when zoomed all the way out .

Good luck

Ronnie

Kevin Spahr · December 20th, 2010, 04:55 PM

Maybe Jim is talking about the effect caused by using a f-stop outside of the sweet spot of the stock lens.
(Something typical in most lenses)

I love my EX3 and couldn't be happier with it.

Ronnie Martin · December 30th, 2010, 02:29 PM

I may be wrong but I think the sweet spot for the lens on the Ex cameras is about f 4 to 5.6. I usually shoot in a poor lite situation at night and even with gain up the f stop may be below 3. Sometimes all the way open to 1.9.

All of the footage has been good except when I screwed up and missed the shot or forgot to focus properly.

Ronnie

December 19th, 2010, 04:52 PM	#1
Jim Stamos Major Player Join Date: Jun 2008 Location: Houston, TX Posts: 565	soft focus on ex3? i was looking into buying the ex3 but have been reading that the focus is soft. is this random or are alot of users having issues with it, also, heard issues with the backfocus holding as well.

December 20th, 2010, 04:37 PM	#3
Ronnie Martin Regular Crew Join Date: Jan 2002 Location: Brandon, Ms 39042 USA Posts: 159	Like Doug I have shot way too many hours with the ex-3 (one gig was 140 hours) and never found that the ex-3 was not sharp. If you have removed the lens however, even just to inspect it and then put back on be sure to perform the back focus procedure. (flange back as Sony calls it). One more thing I shoot out doors a lot with changing temperatures and the infinity position on the lens changes slightly. What I do is before each shot refocus with the view finder magnification all the way down on telephoto and make a slight correction then compose my shot. I shoot from about dusk to near midnight and find that as the temperature goes down the focus changes ever so slightly. That little bit of difference can be noticed when zoomed all the way out . Good luck Ronnie __________________ Ronnie Martin Kato Video

December 30th, 2010, 02:29 PM	#5
Ronnie Martin Regular Crew Join Date: Jan 2002 Location: Brandon, Ms 39042 USA Posts: 159	I may be wrong but I think the sweet spot for the lens on the Ex cameras is about f 4 to 5.6. I usually shoot in a poor lite situation at night and even with gain up the f stop may be below 3. Sometimes all the way open to 1.9. All of the footage has been good except when I screwed up and missed the shot or forgot to focus properly. Ronnie __________________ Ronnie Martin Kato Video

December 20th, 2010, 04:55 PM	#4
Kevin Spahr Major Player Join Date: Feb 2005 Location: Carlisle, PA Posts: 451	Maybe Jim is talking about the effect caused by using a f-stop outside of the sweet spot of the stock lens. (Something typical in most lenses) I love my EX3 and couldn't be happier with it.