Changing Lenses

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raythefab

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How many times in an average day would you change a lens and how do you do it to protect from dust:)
 
lots and I dont :p Open camera bag, take one lens off, but it in camera bag face down, pick up new one, take off rear cap, place it on lens taken off, put new lens on camera, close camera bag - done. All in all about 5 seconds, could arse about trying to shield my camera or doing it so quickly I could drop lenses, but have found the above method works fine :)
 
my little 17-70 Sigma does the job for most things but when changing, i unscrew the lens on the body to the point where it can be lifted (but don't lift it yet).

I remove the protective cover off the lens im changing to (upside down)

Then do a quick swap, best i can do i figure. I have a blower/brush on hand to clean if needed but generally i'm fairly lucky with them :)
 
Jimmy_Lemon said:
lots and I dont :p Open camera bag, take one lens off, but it in camera bag face down, pick up new one, take off rear cap, place it on lens taken off, put new lens on camera, close camera bag - done. All in all about 5 seconds, could arse about trying to shield my camera or doing it so quickly I could drop lenses, but have found the above method works fine :)
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:plusone:
 
Originally Posted by Jimmy_Lemon View Post
lots and I dont Open camera bag, take one lens off, but it in camera bag face down, pick up new one, take off rear cap, place it on lens taken off, put new lens on camera, close camera bag - done. All in all about 5 seconds, could arse about trying to shield my camera or doing it so quickly I could drop lenses, but have found the above method works fine

cowasaki said:
:plusone:
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I thought this the best way too:thumbs:
 
i try to keep lenses on bodies as much as possible
i take 3 bodies out on each shoot
1 with 70-200 f2.8
1 with 24-70 f2.8
and the 3rd with what ever other lens i feel i may need for the particular job

i avoid changing lenses while out on location
if i have to then its switch off the camera and wait till the static and other charges in the sensor has diminished then change as fast and as out of the way of wind and dirt as possible

i find dust is a real problem with full frame sensors so every care has to be taken
 
Jimmy_Lemon said:
lots and I dont :p Open camera bag, take one lens off, but it in camera bag face down, pick up new one, take off rear cap, place it on lens taken off, put new lens on camera, close camera bag - done. All in all about 5 seconds, could arse about trying to shield my camera or doing it so quickly I could drop lenses, but have found the above method works fine :)
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That just about sums it up nicely. About the only time I'd be a little more careful is when there's lots of wind blown sand, in those conditions I'd probably try and shield the camera a bit more. But for all normal circumstances I don't worry about it at all.
 
I normally try and find somewhere indoors to do it. It sounds silly, but at a recent car show I asked if I could sit in someone's car to change the lens (I knew him). I'm very careful, but even then I noticed a bit on my 450D but luckily it went away. I'm going to be very, very careful on my new 50D.
 
I rarely have the need to change lenses during a shoot. If I do, I don't do anything special to protect it:

Crouch, back to the wind if there is any.
Place new lens on the ground front down, loosen end cap.
Remove lens from camera, place on ground front down.
Take end cap from new lens to previous one, and put the new lens on the camera.
Tighten end cap and put lens back in bag.
 
Maybe I am a little more careful than those I see around me at media events, but by and large you just get on with it as quickly as you can.

Perhaps if you didn't have the pressure of needing to catch that fleeting shot you'd pay more attention, but I can't say I've mangled anything yet.

BTW the dust on the sensor seems to come regardless - I've had probably more get on it from what seems like a clean environment than I ever have next to a dust ridden race track!
 
Kryptix said:
I normally try and find somewhere indoors to do it. It sounds silly, but at a recent car show I asked if I could sit in someone's car to change the lens (I knew him). I'm very careful, but even then I noticed a bit on my 450D but luckily it went away. I'm going to be very, very careful on my new 50D.
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Have you put a screen protector on yours? I find I'm leaving thumbprints, smears etc on the screen.
 
I tend to have two bodies on the go with different lenses, so don't change very often, but when I need to, just do it on my open bag, as quickly as possible, don't really take any special care unless conditions are bad:wind/rain/dusty etc.
 
Whenever I need to, normally fairly often.
I crouch back to the wind, if there is any. Have the lens ready with the cap loosened or body cap waiting. I then loosen the lens but leave it in the mount. Pick up the new lens or body cap with my other hand and swap them over quickly, keeping the old lens mount down so gravity doesn't get any dust in it. Then I replace the lens cap of the removed lens and i'm good to go.
My priority is keeping dust out of the camera rather than lens because its harder to shift and more sensitive to being messed about with.
 
I don't change lens much, but I do add/remove a teleconvertor a lot.
Lens placed hood down on the floor, camera off and hung off the strap, TC on lens, camera back on.
 
Can I ask, why don't they put a piece of glass in front of the shutter mechanism? It'd stop dust getting in. I can't think why they wouldn't do it?
 
I don't change that often, I tend to stick with one lens for that particular shooting session, but when I need to, Im the same as most here - just do it as quickly as I can and not worry too much.

As for the bit of glass, wouldn't that just attract the dust to?
 
I hardly ever changes lenses. When I know I'll want different lenses during the day I'll probably shoot with two bodies and avoid lens changing completely. When I do need to change lenses it will probably be at home, in peace and quiet, or in a hotel/motel room, and with no flying dust around.

e.g. When I toured New Zealand for three weeks I pretty much had my 10-22 glued to my 30D and my 100-400 glued to my 40D. I also had my 17-55 and 50/1.8 with me but they got used only rarely. New Zealand is one dusty place, especially with lots of unsurfaced gravel and dust roads to be negotiated. The car was filthy inside and out at the end of the three weeks but I never had to clean the innards of my camera gear.

When I shoot a wedding it'll be 17-55 on one body and 70-200/2.8 IS on the other. Now I have a 1D3 it'll be the 24-70/2.8 on that and that will pretty much do me. I might keep the 70-200 on my 50D in case I need a long shot, and keep my 17-55 handy as a spare in case the 1D3 or 24-70 goes tits up. It's very unlikely I'll change lenses during a wedding though - maybe if I had to switch to a fast prime for the church service, but that's the only time and to date I have not needed to do that.

When I go to the zoo I will have my 100-400 on one body and, if I take anything else at all, my 70-200 on another. I'f I'm shooting wildlife then it will probably just be the 100-400, perhaps with my 1,4X teleconverter handy. Then I might make a change in the field but it is quick and easy to pop a converter into place - the camera body need only be exposed for a second.

I've been shooting with DSLRs for almost three years and to date I've only performed one wet clean - on my 30D, 18 months ago - and I don't think I've used my Rocket blower on any of my bodies so far this year. Dust is pretty much a non-issue for me due to forward planning and diligence when changing lenses. It might be a different story for those shooting with primes or only one body. It might also be a different story for those who stop down smaller than f/11, which I don't.

Quick lens changing video - http://www.youtube.com/watch?v=PiWctOW5p6A

or - http://video.aol.com/category/boda-bag - Skip forward and watch from around 4:20 in.
 
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