Weird lens issue on EX1 - is this normal? - Page 2 at DVinfo.net
DV Info Net

Go Back   DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony XDCAM EX Pro Handhelds
Register FAQ Today's Posts Buyer's Guides

Sony XDCAM EX Pro Handhelds
Sony PXW-Z280, Z190, X180 etc. (going back to EX3 & EX1) recording to SxS flash memory.

Reply
 
Thread Tools Search this Thread
Old December 25th, 2008, 08:17 PM   #16
Regular Crew
 
Join Date: Sep 2006
Location: Portola Valley
Posts: 105
Lens Flare for sure. Remember you lens can act like a prism and have different color shifts throughout the rainbow. Also there is anti-glare coating on the lens to reduce this, but you can still get multi-color flares. You might have hand a finger print on the lens that helped cause the size and color.

Otherwise, I'd submit your video to the Ghost Busters and have them come remove the ghosts from your house. ASAP!
Greg Voevodsky is offline   Reply With Quote
Old December 26th, 2008, 06:57 PM   #17
Major Player
 
Join Date: Dec 2005
Location: Melbourne, AUSTRALIA
Posts: 735
Quote:
Originally Posted by Greg Voevodsky View Post
You might have hand a finger print on the lens that helped cause the size and color.
That's what worries me - I don't. I cannot for the life of me spot any weird blemmishes on the lens.

So it's safe to say that nothing is wrong with the sensor?

And that there may be some unidentified blemish somewhere on the lens?
__________________
John Hewat
Mammoth Media Productions
John Hewat is offline   Reply With Quote
Old December 27th, 2008, 12:47 AM   #18
Regular Crew
 
Join Date: Sep 2006
Location: Portola Valley
Posts: 105
I'd just clean your lens and learn not to let flares / light get on the lens. A clamp on french flag on top of the hand rail can flag any problem. If you are shooting into the light like a sunset, then you need to watch and adjust you camera - center the sunset - until it does not flare. Flaring is natural - now if you get this horrible look shooting something for real, then it shows you are not protecting you lens with a mattebox and or flags.

I'd go shoot a bunch of tests and see if you this happens.. screwing around you can get lots of stuff to look bad.. which is what your test shot was... dark underlit couch with crapping backlight flaring the camera in different colors... no control and you get uncontrolled outcome. Good luck. Shoot serious tests.

As a side, I was sloppy shooting serious tests, and had the sun hit my lens and like many other discovered with shallow near focus - lots of spots and dust inside the lens. The solution, do not have focus close to the lens. Shoot f.4-f5.6 with focus at least 5ft away from camera. Shooting f.20 with focus 0 to infiniti will reveal spots especially when the sun is on the lens. Shoot in the sweet spot and problems are less.
Greg Voevodsky is offline   Reply With Quote
Old December 27th, 2008, 07:15 AM   #19
Trustee
 
Join Date: Sep 2004
Location: Chislehurst, London
Posts: 1,724
John,

It is simply lens flare, just go out into a real world shooting situation and shoot some footage. If the flare is on all your shots then you have a problem, if not then put your time to creative use.
__________________
Eyes are a deaf man’s ears. Ears are a blind man’s eyes
Vincent Oliver 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...

B&H Photo Video
(866) 521-7381
New York, NY USA

Scan Computers Int. Ltd.
+44 0871-472-4747
Bolton, Lancashire UK


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 > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony XDCAM EX Pro Handhelds


 



All times are GMT -6. The time now is 04:50 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2024 The Digital Video Information Network