| Author | Thread |
|
|
11/18/2004 02:49:06 AM · #1 |
i have a canon powershot A75 camera.. i understand that in compact lens camera's its hard to achieve this effect ( subjuct in focus and background not ) because of the small focal length of the camera..
unless the subjuct and background are at great distance from each other..
are there processing/shooting techniques that would achieve any results ?.. |
|
|
|
11/18/2004 02:57:14 AM · #2 |
| I don't know. My usual problem is I get the background beautifully in focus but the subject isn't... |
|
|
|
11/18/2004 03:00:04 AM · #3 |
Originally posted by rami:
i have a canon powershot A75 camera.. i understand that in compact lens camera's its hard to achieve this effect ( subjuct in focus and background not ) because of the small focal length of the camera..
unless the subjuct and background are at great distance from each other..
are there processing/shooting techniques that would achieve any results ?.. |
Zoom in to the max and try to fill the frame from close distance. Use the widest aperture you have (F2.8 - F3.2?). It will be even better with a teleconverter.
|
|
|
|
11/18/2004 03:08:30 AM · #4 |
|
|
|
11/18/2004 03:15:09 AM · #5 |
Originally posted by rami:
whats a teleconverter |
A lens that you can put in front of the fixed lens and multiplies the zoom by a certain ratio. It only works when you use full zoom. The advantage is that the longer the focal length, the easier it is to create that out of focus background.
When the A75 works a bit like the A60 you can unlock a ring around the lens. There you can add an extension tube, and on that extension tube you can screw the teleconverter.
|
|
|
|
11/18/2004 03:34:44 AM · #6 |
Do you have a macro setting on your camera? If so get close use macro, and that should make your background blurry.
|
|
|
|
11/18/2004 03:55:29 AM · #7 |
azrifel .. yeah it has a ring you slip out..
pug-H : yep it does have a macro setting but as i explained earlier its its ineffective if you're shootin somethin at some distance.. |
|
|
|
11/18/2004 05:01:15 AM · #8 |
Originally posted by rami:
azrifel .. yeah it has a ring you slip out..
pug-H : yep it does have a macro setting but as i explained earlier its its ineffective if you're shootin somethin at some distance.. |
The macro setting doesn´t make any difference when shooting at distance. Only helps you to get things in very short distance in focus. |
|
|
|
11/18/2004 09:42:31 AM · #9 |
If you want to do it with post-processing you could try this with Photoshop Elements, 6, 7 , CS and possibly many other expensive and inexpensive editors:
* Aplly a gaussian blur to the whole image. Use a setting that gives a nice background but that won't contrast (this is about sharpness contrast) too much with the in focus subject.
* Now select the history item before the blur as a base for the history brush (do not step back to this item, this is only the selection for the history brush)
* Use the history brush with soft edges on the in focus subject to wipe away the blur from your in-focus subject.
But be aware that the gradation from in-focus to blurred can be too hard when you use a to wide blur setting or are not precise enough with the history brush.
These following examples had some blur to start with but I used the above method to further enhance it:
  
Try it too see if it works, it is not a guarenteed 'works always' solution.
|
|
|
|
11/18/2004 09:46:15 AM · #10 |
Originally posted by rami:
i have a canon powershot A75 camera.. i understand that in compact lens camera's its hard to achieve this effect ( subjuct in focus and background not ) because of the small focal length of the camera..
unless the subjuct and background are at great distance from each other..
are there processing/shooting techniques that would achieve any results ?.. |
Really doesn't matter what f-stop you use with a compact digicam. The super short focal length lenses will almost guarantee huge DOF. You'll have to blur the BG in PS anyway.
|
|
|
|
11/18/2004 09:46:37 AM · #11 |
Great use of the technique Azrifel!
It really helps to isolate the image.
|
|
|
|
11/18/2004 01:34:29 PM · #12 |
| I think the most important thing in trying for the blurry background is to use a wide open apeture (lowest f number your camera has) to get a shallow depth of field. Second is the distance from subject to background which you can't always control in outdoor shots but can in studio set-ups. |
|
|
|
11/18/2004 10:28:54 PM · #13 |
Originally posted by Spazmo99:
Really doesn't matter what f-stop you use with a compact digicam. The super short focal length lenses will almost guarantee huge DOF. You'll have to blur the BG in PS anyway. |
That´s not absolutly true. It´s surely possible to blurr the background with a compact camera. F. ex. this one is shot with A70:
But you have to have the lens wide open, on maximum focal length and focus as closely as possible (optimally on macro setting). But when the main subject are more than 1 or 2 feets away this is impossible. Of course there are ways to do this in photoediting programs but they can my very timeconsuming and needs care to be able to look good (nice work Azrifel). Think there is a setting in PS CS called gradinet blur which could come in hand. |
|
|
|
11/18/2004 10:30:27 PM · #14 |
| select just around the edge of the subject, invert selection, feather, gausson blur. |
|
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: 08/08/2025 12:02:51 PM EDT.
