Turning off camera to change lenses necessary?

[rudolph]

Is it just a myth that when the camera is powered on it creates static on the sensor? I've been powering down when changing lenses to avoid excessive dust sticking to the sensor. Is that unnecessary?

 

[StephenMurphy]

You dont need to power down to change a lens.

 

[Raul Gonzo]

It is okay to change lenses while camera is on.

 

[Alexander Christ]

You do not need to power down for changing lenses. AFAIK sensors don't carry electrostatic charges. And the sensor sits sealed behind the low pass filter that can be cleaned: http://www.reduser.net/forum/showthread.php?t=5082

 

[Brent J. Craig]

Wow! Your shoots must be pretty slow paced, Rudolph, if you can reboot the camera every time a lens needs changing.

With misinformation such as this, I wonder what else Rudolph needs to learn?!?

Edit: By which I meant PLEASE send us your questions! It is better for all of us to have any harmful misconceptions answered.

 

[Nick Gardner]

Although the camera can remain on when changing lenses, the AC should ALWAYS wear their tinfoil static discharge helmet, and only make left hand turns (right hand turns in the southern hemisphere) to avoid charging the lens it's self with positively charged ions.

 

[Jim McKinney]

OK Rudolph, so maybe you asked a stupid question - the point being that that's okay. Reduser.net is your support and we're all here to help. It's really stupid NOT to ask the question. (Besides, we don't need any producers out there thinking we've got to shut down just to change a lens!) ;-)

 

[Alexander Christ]

Nick, what about actors, should they also put their helmets on?

Rudolph, take it with a smile, the only stupid question is the one not asked.

 

[Kevin Wild]

Ouch, you guys are harsh. Funny thing is, his question makes sense. Maybe not static, but maybe the way a fan is setup inside the camera could make it suck dust in quicker if the camera is on and running than when it's off.

Go easy on the poor fella. He's only up to 9 posts...we want him to get to 10.

 

[rudolph]

That was amazing.

 

[Jason Wingrove]

You guys are RIDICULOUS! those things must cause some pretty bad reflections!. I insist on the BLACKWRAP versions on my sets! (That said, any news on the red anodised factory issue ones coming off backorder?)

Jas

_

 

[Nick Gardner]

Here's a shot of my first and second ACs wearing the ET prototype lens changing suits on a recent job

 

[Jason Wingrove]

ET as always superbly 'over engineering' things, im sure they've tested them thoroughly tho.

Id say NO chance of any static discharge there! When can we pre order
j

 

[Kevin Wild]

You guys have been so mean to poor Rudolph. Is it bad if tears get on the front of the lens?

 

[Pawel Achtel]

Definetely turn the camera off each time before changing the lens. That's the reason why you need a DIT on the set. And those suites are great. They are a "must have" accessory in hot weather conditions (above 30ºC) when static discharge can be a problem. :ihih:.

sorry, couldn't resist :biggrin:

 

[Ketch Rossi]

Turning the camera off during changing of the lens is a practice used by several Pro-Photographers, I personally do turn my DSLR camera off when all possible as it only takes few extra seconds, and especially the IS needs to be turned always off before installing the lens and or taking it off.

But with RED I never once observe this, there is just no need for it, even so it is at times suggested to turn off Cameras were there is a direct electronic connection with the lens, in order to avoid any false contacts, but this is again only something I heard in the world of Photography..

ciao

 

[Jeff Kilgroe]

ET as always superbly 'over engineering' things

...No detail left unaddressed! Look at the IR hot-mirror visors. :coolgleamA:
:biggrin: