lens changing question...

I normally have my m43 cameras set to shoot without lens so I can use legacy lenses. I turn the camera off to avoid accidentally tripping the shutter.
 
I have completely forgotten to turn my camera off when changing lenses a few times.

I guess I'd prefer the camera to be switched off in case I accidentally press the shutter while I'm changing lenses.
 
My dad is a retired mechanical engineer; when I was a kid he drilled it into me that anytime one is connecting/disconnecting electrical "stuff", the power had to be off. To prevent damage to oneself or to the equipment.
So, by long habit I don't change lenses with electronic connections unless the power is off.
Probably not necessary but habitual for me.
Rob
 
Never. I leave the body powered up and swap lenses without thinking about it. I've done this on most of the cameras I've owned and I've never seen an issue.
 
Never tought about it so likely it is powered most of the time. Never caused any problem. So far...

I'm an electronic designer by trade. And mostly this is taken care of when designing/specifying the connections. Certainly the last decades.
 
I always do, especially when I had my M9. That thing ate dust and remember reading a thread where it was agreed that your best chance to reduce dust was turning camera off. Not sure it was true but dirty sensor is the thing I miss least about my M9.
 
I turn it off because my camera is set to do a sensor cleaning cycle on power-down and power-up. And always, always point the flange down and shield the camera from breezes and dust when doing so.
 
back alley said:
probably more for the electronic camera user...

do you turn your camera off when changing lenses?
if yes, why?
Click to expand...

No. The Sonys expose the sensor whether on or off, and on the Nikons it is behind the mirror in either state. So it makes no difference regarding sensor protection (or the lack of). Supposedly there have been cameras that failed to properly read out chipped lenses unless turned off and on for the change - but that must have been pretty early on in the AF history, it certainly wasn't the case any more with the first Nikon and Canon pro AF models or ever after.
 
back alley said:
probably more for the electronic camera user...

do you turn your camera off when changing lenses?
if yes, why?
Click to expand...

Usually. The E-1 does a sensor cleaning cycle when powered up so it makes sense to do so. I have the GXR set to close the shutter on power down so it helps keep the sensor clean. But I don't think about it much.

G
 
No, why would you? If I'm in a fast-moving situation in which I have to change lenses on a dime, why would I want to compound the process by having to turn my camera off, then back on again? I've changed lenses thousands of times with my D70, D200, D700, D4, D800, E-P2, M9 and Monochrom without ever turning the camera off, and nothing ever happened, nor would I expect anything to happen.

No point to doing it.
 
i'm guessing that there are quite a few of us old farts that were told to turn off the camera before changing lenses...i'm not sure where i might have first read or heard that...on another forum i read that many do not follow this advice and i was surprised...thus the question here.
 
About 80% I remember to turn the camera off before removing the lens. 20% I forget to do that.
Never had a problem, but I don't think it would cause an immediate problem.
I think that while the camera is turned on, the sensor has a static charge on it, and attracts any dust that's around (like your TV screen). That's not a fatal fault, and I'm not quite sure how much of a dust magnet it actually is.
 
I shoot primes and shoot events, so I change lenses a lot. I have never bothered turning Nikons off (D200 and D3) and never had any issues. From a dirt perspective, I think its more important that you are aware of things like wind (windy day, always change lenses with the body facing the ground) and keeping lens swaps fast and smooth. These days I have a strap that hangs the camera from the tripod mount so I often change lenses with the mount vertical as its so easy, but I will put my back to the wind and do swift changes.
 
I always turn a digital camera off before attaching or removing a lens. The reasoning I recall reading is that while powered up there is a static charge on the sensor, so it can be a magnet for dirt. I can’t find instructions to that effect in my digital camera manuals. But...
In a Pentax dSLR instruction manual, under “Attaching the Lens”
there is a caution: “Turn the camera off before attaching or removing the lens to prevent unexpected lens movement.”
Then, the first step in attaching the lens is:
“1. Check that the camera is turned off.”
 
Doug said:
I always turn a digital camera off before attaching or removing a lens. The reasoning I recall reading is that while powered up there is a static charge on the sensor, so it can be a magnet for dirt. I can’t find instructions to that effect in my digital camera manuals. But...
In a Pentax dSLR instruction manual, under “Attaching the Lens”
there is a caution: “Turn the camera off before attaching or removing the lens to prevent unexpected lens movement.”
Then, the first step in attaching the lens is:
“1. Check that the camera is turned off.”
Click to expand...

Exactly what my manual says:)
 
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