| Author | Thread |
|
|
03/05/2007 11:27:32 AM · #1 |
Doing a zoom burst ive heard you can basicly do a long exposure and in the middle of it bring the zoom back.
With most dSLR's do they let u control zoom during an exposure or does the whole thing have to be done in manual with you grabiing the zoom ring? |
|
|
|
03/05/2007 11:30:28 AM · #2 |
| Zooming is done manually. |
|
|
|
03/05/2007 11:42:12 AM · #3 |
Autofocus, zoomed while shutter open, 1 second exposure.
Experiment with various shutter speeds (more/less time for turning zoom ring) to get the look you want. Vary the start/end time of your zoom also - a small pause at the beginning will give you a "base" image. |
|
|
|
03/05/2007 11:50:14 AM · #4 |
You can also get interesting effects if you 'step' the zoom by stopping at periods during the exposure, zooming, then stopping and so on. Also worth playing around at defocusing the lens as you zoom.
 
It helps to have a lens with big, easy to twist focus and zoom controls as well as full time auto/manual focusing, if you are going to change the focus. Otherwise, you need to remember to switch to manual focus or you can damage the lens. |
|
|
|
03/05/2007 12:01:28 PM · #5 |
Originally posted by Gordon:
... It helps to have a lens with big, easy to twist focus and zoom controls as well as full time auto/manual focusing, if you are going to change the focus. Otherwise, you need to remember to switch to manual focus or you can damage the lens. |
??? on this part ==> "Otherwise, you need to remember to switch to manual focus or you can damage the lens."
I set autofocus to AF-S (for single focus), other options are AF-A (for auto) and AF-C (for continuous, like sports).
Now you're making me nervous. :/ This is the first lens I've had where I can zoom while shooting. Am I at risk of damaging it doing this? |
|
|
|
03/05/2007 12:02:50 PM · #6 |
 
Both 1 second zooms, hand-held during exposure. |
|
|
|
03/05/2007 12:19:01 PM · #7 |
[quote=glad2badadNow you're making me nervous. :/ This is the first lens I've had where I can zoom while shooting. Am I at risk of damaging it doing this? [/quote]
What Gordon's referring to is the fact that, if you grab the focus ring on an AF lens when it's trying to focus, you *could* be at risk of damaging the lens, if it does not have full-time manual focus override. Many Canon lenses (most but not all USM ones) have this. Many third-party lenses do not. If the focus ring rotates during AF, the lens definitely does not have it.
Zooming during exposure should never do damage, unless of course you inadvertently grab the focus ring while it's trying to rotate. It's usually preferable to set focus manually for this type of shot anyhow; AF will probably just mess things up. |
|
|
|
03/05/2007 12:26:29 PM · #8 |
Originally posted by kirbic:
What Gordon's referring to is ... |
Thanks for that explanation Fritz. Not nervous anymore. :D |
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 08/30/2025 03:53:04 PM EDT.
