| Author | Thread |
|
|
05/23/2005 10:11:47 PM · #1 |
After searching around for a while and not finding any answers, I am hoping someone here can help me. How do close-up filters change the DOF? I'm curious about the math, but even more so, I'd like to know if there is some rule of thumb.
|
|
|
|
05/23/2005 10:25:36 PM · #2 |
Well I can't give you specifics - but I know can be shallow - I have one and it does make a difference depending on which lens I use and the more I zoom the shallower it gets. I compensate sometimes with extenders and do not zoom - it helps alot.
Message edited by author 2005-05-23 22:25:55. |
|
|
|
05/23/2005 10:38:32 PM · #3 |
In order to do an actual calculation, you'd need to know how the the diopter (close up filter) changes the focal length of the lens it's mounted on. Then compute the DoF as if using a lens of that focal length, with the actual subject-to-sensor distance.
|
|
|
|
05/23/2005 10:46:44 PM · #4 |
back when i did all of my photography with my G5, i had some close up lenses and the DOF was razor thin, here is a smaple of one taken with close up lenses
wasp |
|
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: 09/13/2025 10:06:28 AM EDT.
