Quote Originally Posted by Steve U
routines that you observe when chaging lenses in the field?


<meta http-equiv="content-type" content="text/html; charset=utf-8" />
Here's what I do:
  • Put lens cap on current lens.
  • Take rear lens cap off next lens.
  • Put current lens in bag.
  • Put next lens on camera.
  • Put rear lens cap on last lens



If the lenses are light enough to hold two in one hand (e.g. 17-50 f/2.8 and 50mm f/1.4), then I switch lenses in one step, like this:



<meta http-equiv="content-type" content="text/html; charset=utf-8" />

<h3 dir="ltr"]Technique to quicklychangeDigital SLR Cameralenses</h3>






<meta http-equiv="content-type" content="text/html; charset=utf-8" />

<div>


(Of course, the guy on the video is a huge windbag like me, so he makes an hour video out of something that should take only a few seconds.)


Quote Originally Posted by Steve U



<meta http-equiv="content-type" content="text/html; charset=utf-8" />
Do you have spare lens caps?


I don't have any spare front lens caps, but I do have several spare rear lens caps. That way I can keep an extra inside the lowepro bag for each lens.


Quote Originally Posted by neuroanatomist
I'm not sure if it's true, but I've read that a powered sensor has a static charge that can attract dust - it's easy enough just to turn it off first.

It's definitely not true. The voltage of the bare sensor itself while its running is so low that it never builds up an electric field with enough intensity to attract a dust particle (purpose-built electrostatic dust filters use tens of thousands of volts.)But even if it did, it wouldn't be able to reach through a half dozen layers of filters (protective cover glass, three optical low pass filters, and a infrared filter). Camera engineers have reported measuring the charge of a sensor while it's running with a field mill and got nothing.



<meta http-equiv="content-type" content="text/html; charset=utf-8" />

<div>


Quote Originally Posted by neuroanatomist
But, what if you accidentally depress the shutter button? It also ensures your lens' IS elements (if present) are parked, etc., so seems like a reasonable precaution regardless.

I don't think I've ever hit the shutter button during a lens change, but now that you've warned me about it, I will probably do just that. []It's probably a good precaution, but I never turn off the camera.
</div>



</div>