Changing Lens ?

Joined
May 4, 2005
Messages
55
Location
Guisborough,North Yorkshire.England
Any advice on the changing of lenses to avoid getting dust in the camera ? I've been warned to be careful but not actually given any real advice on doing it ! And how often do you clean your censors ? Cheers for any help.
 
Joined
May 24, 2005
Messages
300
Location
Salem, NH
The best way to change lenses is to do it in a not dusty environment. I know that can be hard, so I do the following:

1. Get out of/shield camera from any wind
2. Do indoors vs outdoors if possible
3. Always point the camera towards the ground
4. Have the lens caps ready
5. If in a remote location, you can use your vehicle

As far as sensor cleaning, I use an air blower and use it only when I see "dust bunnies". I have only sent it to Nikon once for a real cleaning.

C
 
Joined
Feb 2, 2005
Messages
35,259
Location
Arizona
Real Name
Chris
Change your lens FAST. Ron Resnick gives a great procedure for this in his ebook. Essentially it involves first putting the rear lens cap in your pocket, and holding the new lens at such an angle that it goes right on, and you don't need to search for the alignment index. See Ron's book for the details.
 
Joined
Apr 6, 2005
Messages
425
Location
Glen Allen, Virginia
Chris101 said:
Change your lens FAST. Ron Resnick gives a great procedure for this in his ebook. Essentially it involves first putting the rear lens cap in your pocket, and holding the new lens at such an angle that it goes right on, and you don't need to search for the alignment index. See Ron's book for the details.
exactly how i do it....no issues as of yet.
 
Joined
May 23, 2005
Messages
745
dust happens, if you don't think you have encountered any, then you are not stopping down enough and doing enough critical checking to see it.
Get used to cleaning your sensor, it is pretty easy with a plastic knife and some pec pads and some good alcohol.
 

AFS

Joined
May 1, 2005
Messages
3,001
Location
Minnesota (formerly Florida)
First, set up a sterile clean-room with airlocks, decontamination chambers, and pressurized suits. Place the camera in the special decontamination changing holder, activate the mechanism that inserts it into the changing chamber, and using your glove box, activate the controls that will change the lenses to the one you want from isolated storage. :)
Just turn off, have all your caps prepared, out of the wind, indoors, least dusty place you can find. Loosen the rear cap on the new lens but don't remove it. cap the front of the existing lens, press the release button and rotate the lens, don't remove it yet, hold it in place. Remove the rear cap on the new lens, remove the old lens, drop the cap on the rear of the old one, attach new one immediately, then secure the rear cap on the old lens.
 
Joined
Feb 2, 2005
Messages
35,259
Location
Arizona
Real Name
Chris
DiverX said:
1. SHUT CAMERA OFF!!
Why? A ccd (or cmos) never develops a sufficient charge (several hundred volts are required) to attract dust particles. The natural attraction of the oxygen atom (in water) for the silicon atom (in glass) is about the strongest force involved.
 
D

dbirdsong

Guest
Chris101 said:
DiverX said:
1. SHUT CAMERA OFF!!
Why? A ccd (or cmos) never develops a sufficient charge (several hundred volts are required) to attract dust particles. The natural attraction of the oxygen atom (in water) for the silicon atom (in glass) is about the strongest force involved.

I had a chance to have dinner a couple months ago with a guy from Nikon that told me it really doesn't matter if you turn the camera off or not.
All I know is no matter what I do when changing lens' outside I always end up with dust on the sensor.
 

AFS

Joined
May 1, 2005
Messages
3,001
Location
Minnesota (formerly Florida)
Well, its still best to shut the camera off, to deactivate all the equipment. If you remove a VR lens while the camera is on and especially with VR running it can make a really scary sound and you need to remount it and let the VR turn off and the camera turn off to reset it.
 

fks

Joined
Apr 30, 2005
Messages
2,756
Location
sf bay area
hi chris-

to add to what harrison said, nikon says to turn the camera off when attaching or detaching lenses. it's a good idea since some of the contacts are probably live.

i'll admit that i've accidentally removed a lens and removed a CF card with the camera on, but i try my best to have the camera off when doing either.

ricky


Chris101 said:
DiverX said:
1. SHUT CAMERA OFF!!
Why? A ccd (or cmos) never develops a sufficient charge (several hundred volts are required) to attract dust particles. The natural attraction of the oxygen atom (in water) for the silicon atom (in glass) is about the strongest force involved.
 
Joined
Feb 2, 2005
Messages
35,259
Location
Arizona
Real Name
Chris
Harrison - I'm morbid. Right after reading your post, I got out my D100, activated the 24-120's VR with my ear to the camera: "(click) whrrrrrrrrr..." and after a couple seconds the lens went quiet. Then I did it again, but in mid whrrr, I quickly pushed the release button and twisted off the lens. The whrrr stopped, but that was all. Then when I put it back on, the normal sounds came from it every time I activated the VR.

Ricky, I have changed cards and lenses with the camera turned on many times. Because when I'm shooting I usually don't have time to think about any of that stuff, I just need to get a new card in or lens on - pronto!

I've never had a problem. This question probably requires a poll. I suspect that unlike many electro-mechanical things, Nikon cameras are fault tolerant about this. And I'm a real stickler about lettiing hard drives spin down before moving them.
 
D

dan_m

Guest
Put the rear lens cap in your pocket?!

Turn one of your pockets inside out and look at the junk that falls out. What an efficient way to get crud into the back end of a lens and into the camera on its next installation. Just my 2 cents worth.
Dan M.
 
Joined
Feb 2, 2005
Messages
35,259
Location
Arizona
Real Name
Chris
I question that step too Dan. I think it keeps you from dropping it while doing the lens flipping thing. I've never dropped a lens, but when I'm holding a camera in one hand, and two lenses in the other, it gets pretty precarious. I guess I could hold the cap in my teeth, but then I'd slobber on it. Sometimes (with small lenses) I wedge it between my pinky and ring finger on the camera hand.

Hey, you know what - I just thought of this. When Ron does it, I'll bet he hangs the camera from his neck, so he can devote a whole hand to each lens.
 
Joined
May 15, 2005
Messages
2,874
Location
Ukraine, Europe
No matter how you take all the above precautions you'll get dust on your sensor anyway.
Just learn the cleaning technique and you'll be OK :)

Besides there's always a clone tool in PS :)
 

Latest posts

Links on this page may be to our affiliates. Sales through affiliate links may benefit this site.
Nikon Cafe is a fan site and not associated with Nikon Corporation.
Forum post reactions by Twemoji: https://github.com/twitter/twemoji
Copyright © 2005-2019 Amin Forums, LLC
Top Bottom