WARNING on using CRT view finders..... at DVinfo.net

Go Back   DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon EOS Full Frame for HD

Canon EOS Full Frame for HD
All about using the Canon 1D X, 6D, 5D Mk. IV / Mk. III / Mk. II D-SLR for 4K and HD video recording.

Thread Tools Search this Thread
Old June 23rd, 2009, 11:53 AM   #1
Regular Crew
Join Date: Nov 2004
Posts: 1,414
WARNING on using CRT view finders.....

Just thought I should pass along this information as many have not had the chance to
use a CRT view finder out in the bright sun light....

What I'm going to describe to you is a situation that occurs all the time to non suspecting
Scuba Divers that shoot footage with their camera's mounted in a underwater housing....

The same situation will also apply to land based photography when utilizing a CRT view finder.

One of the obvious requirements for a underwater housing is that the diver has a way to
see the CRT display for framing and focus... many of the housing manufacturers utilize
a diopter lens in front of the CRT just like all manufacturers of the CRT view finders for
the D5MKII... the diopter is either glass or high grade plastic.... but in either case they
are a magnifier lens.

Now here is the Warning notice, and I have seen this personaly several times in the past
couple of years while out on dive trips...

If you have your CRT view finder mounted on the camera and the view finder lens comes
in direct alignment with the sun and the CRT, I can without any reservations tell you that the
CRT is going to get cooked by the magnification of the suns energy directed onto the cameras
CRT... its not a pretty sight and I'm sure not a cheap fix if it happens to a 5DMKII....

Just be careful and be aware of the situation and you shouldn't have any issues if you keep
the sun out of the finder/crt path...
Ray Bell is offline   Reply With Quote
Old June 23rd, 2009, 01:00 PM   #2
Major Player
Join Date: Dec 2003
Location: Boston, MA
Posts: 321
Happened to me on a EX1 not once but 2x before I found the culprit, the sun and a maginifier used for focusing, like burning ants with a magnifier lens.

See this regarding the EX1 @ How to Replace Your EX1?s LCD

More adpt to happen on a LCD that can rotate upwards. The Sony part was $300.00 for a new LCD.
Steve Cahill is offline   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

Omega Broadcast
(512) 251-7778
Austin, TX

(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

(800) 238-8480
Glendale, 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 EOS Full Frame for HD

Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -6. The time now is 03:55 PM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2015 The Digital Video Information Network