HDR and bracketing

[fjrabon]

If you have braketing, you press it once and the camera does 3 pictures at 3 different exposures

Nikon is different, then. You need to press the shutter once for every bracket.

(or 3 different foci, though I dont know whats that good for).

I agree.... changing the focal length would have zero benefit.

I believe it's for if your focus is slightly off, it's hoping that one of the three would be in focus. (by the way, it's the point that is in focus, not the focal length that it brackets).

In theory, if there was a program that would do it, I could see it being used for a sort of merged view to be able to dynamically change DOF by merging parts of the different images that were in and out of focus. In practice I think it's just in case you miss your focus. Which is even funnier on the G12, since the DOF is so wide due to the tiny sensor that you have to try pretty hard to miss your focus.

 

[480sparky44 43]

I believe it's for if your focus is slightly off, it's hoping that one of the three would be in focus. (by the way, it's the point that is in focus, not the focal length that it brackets).

In theory, if there was a program that would do it, I could see it being used for a sort of merged view to be able to dynamically change DOF by merging parts of the different images that were in and out of focus. In practice I think it's just in case you miss your focus. Which is even funnier on the G12, since the DOF is so wide due to the tiny sensor that you have to try pretty hard to miss your focus.

The OP was saying he was 'bracketing' focal lengths, not points of focus.

Changing the point of focus is the basis for focus stacking.

 

[fjrabon]

I believe it's for if your focus is slightly off, it's hoping that one of the three would be in focus. (by the way, it's the point that is in focus, not the focal length that it brackets).

In theory, if there was a program that would do it, I could see it being used for a sort of merged view to be able to dynamically change DOF by merging parts of the different images that were in and out of focus. In practice I think it's just in case you miss your focus. Which is even funnier on the G12, since the DOF is so wide due to the tiny sensor that you have to try pretty hard to miss your focus.

The OP was saying he was 'bracketing' focal lengths, not points of focus.

Changing the point of focus is the basis for focus stacking.

well, what he meant was that it just changes the points that are in focus. THat's what the G12 I demo'd did. It didn't change the focal length. I had never heard of focus stacking though it sounds exactly like what I was describing above. I just didn't know it actually existed.

 

[qwertyjjj]

So, how do you get an effect like this in HDR?
I've just been using the stadard settings in Luminance to date and they look good quality but this picture has a very surreal look to it.
Picture from: http://www.google.com/imgres?imgurl...TST-rhC8Ss0QXE9tGDBA&ved=0CIABEPUBMAM&dur=408

 

[qwertyjjj]

any ideas?

 

[snowbear119 51]

I'm not sure what you're asking, now. The G12 will take three shots and combine them into one image for HDR (user's manual page 71). The focus bracketing takes three shots: one at the manual focus distance, then one at each of the preset focus distances - farther and nearer (user's manual page 99). The manual does not specify why you would do this, nor if they are combined or separate images. I guess is it a form of focus stacking or for those with bad eyes but want to focus manually.

 

[qwertyjjj]

I'm not sure what you're asking, now. The G12 will take three shots and combine them into one image for HDR (user's manual page 71). The focus bracketing takes three shots: one at the manual focus distance, then one at each of the preset focus distances - farther and nearer (user's manual page 99). The manual does not specify why you would do this, nor if they are combined or separate images. I guess is it a form of focus stacking or for those with bad eyes but want to focus manually.

sorry, I was asking how you'd create that photo 2 posts above...
I'll start a new post.

 

[480sparky44 43]

So, how do you get an effect like this in HDR?
I've just been using the stadard settings in Luminance to date and they look good quality but this picture has a very surreal look to it.
Picture from:

You start changing the setting in your software.


BTW, it's a forum violation to post pix you don't have rights to.

 

[EDL]

Yes, I think he meant that backwards. If you're using exposure compensation to do manual bracketing, you want to use aperture priority mode (or full manual), so you guarantee you're at the same aperture. The one thing you DONT want is shutter priority mode.

DERP...yes, I got it backwards. Sorry. What I meant was to change shutter speed and leave aperture set the same...somehow that translated into shutter priority.