[optimal] Re: Power switch on TRC 50ex

  • From: CPMC Ophthalmic Diagnostic Center <cpmceyelab@xxxxxxxxxxxxxxxx>
  • To: <optimal@xxxxxxxxxxxxx>
  • Date: Tue, 10 Jul 2012 15:35:48 -0700

My dad, an electrical engineer for IBM, would never let us turn our TV's
and computers off.  He said the start up and power down mechanism of
most instruments would in the long run, be more detrimental for their
health than just leaving them on...


Then again, I'm old enough to remember vacuum tube TV's....haha


Denice Barsness, CRA, COMT, ROUB, CDOS, FOPS

Ophthalmic Diagnostic Center

CPMC Department of Ophthalmology

2100 Webster Street Suite 212

San Francisco CA 94115

(415) 600-3937   FAX (415) 600-6563


From: optimal-bounce@xxxxxxxxxxxxx [mailto:optimal-bounce@xxxxxxxxxxxxx]
On Behalf Of Anton Drew
Sent: Tuesday, July 10, 2012 3:18 PM
To: optimal@xxxxxxxxxxxxx
Subject: [optimal] Re: Power switch on TRC 50ex


ALL my fundus cameras over the years have been turned on when I get to
work and turned off when I leave.


I would have a worry about a unit being turned on and off all through
the day, couldn't be good for the innards, not to mention delays if you
are asked to quickly do some photography.


If they don't like the noise, close the door.


My 2ccs worth.


Anton Drew


South Australia


On 11/07/2012, at 12:37 AM, Tom Steele wrote:



One of the photographers has begun turning off the 50ex after every
study to avoid the sound of the camera in their office. I don't think it
really matters if you leave the camera on all day or turn it off and on
multi times.


Perhaps someone has information which would enlighten an old dog
photographer like me.




Thank You,


Tom Steele, CRA

Midwest Eye Institute

200 West 103rd Street

Indianapolis, Indiana 46290




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