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DPChallenge Forums >> Administrator Announcements >> In-Camera Multiple Exposures to be Disallowed
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Showing posts 276 - 284 of 284, (reverse)
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 05/16/2008 02:42:03 PM · #276
Originally posted by Bear_Music:
I am not aware that HDR-style merging for increased DOF would be disallowed. Have you seen a ruling on this?


Multiple exposure for increased DOF is allowed as I understand the rules. It has been discussed in the forums.
 05/16/2008 03:11:10 PM · #277
Originally posted by scarbrd:
Originally posted by Bear_Music:
I am not aware that HDR-style merging for increased DOF would be disallowed. Have you seen a ruling on this?


Multiple exposure for increased DOF is allowed as I understand the rules. It has been discussed in the forums.

It is allowed, I thought of using it for a challenge but wanted to double check and sent in a ticket and got this response from kirbic
Originally posted by kirbic:
Yes, you can change focus to achieve deep DOF.

Regards,

kirbic
 05/16/2008 03:11:15 PM · #278
Originally posted by scarbrd:
Originally posted by Bear_Music:
I am not aware that HDR-style merging for increased DOF would be disallowed. Have you seen a ruling on this?


Multiple exposure for increased DOF is allowed as I understand the rules. It has been discussed in the forums.


I haven't seen anyone do it yet. Do you know if its been tried? Could be opening a Pandora's box.
 05/16/2008 03:18:26 PM · #279
The use of multiple images to enhance a single scene -- where nothing moves around, disappears, etc. -- is legal. Except for exposure, there should be no difference* between the individual frames which make up the composite.

*There will always be a subjectively-determined "gray area" in the rules when there are minor difference between the frames, as in waves, something moving in the wind, a bird flying through. I don't believe there is (or can be) a clear, objective guide here, because it will depend on how (and whether) the item is used and contributes to the overall composition.

The most common (DPC-legal) uses of combining multiple images are:

-HDR (expanding the range of tones reproduced beyond those which can be captured in a single exposure)

-Enhanced DOF control

-Noise-reduction/image amplification in astro-photography. Check out RegiStax for this; here's a Tutorial for planetary images.
===============
Under the current Advanced rules, the following uses of multiple images would not be allowed:

-Expanding the field of view; creating panoramas

-Creating multiple iterations of your subject; time-lapse and "trick photography"

-Combining multiple subjects or scenes into a new composite scene, or placing subjects from one scene into another

-Probably many other clever techniques I haven't thought of ... :-)
================

There is nothing "wrong" with any of these techniques -- they just don't work with the structure of our challenges and the site. By all means set up a Side Challenge (it can just be a posting thread -- it doesn't have to be a competition!) if you want to -- if you include panoramas I might even try and contribute ... :-)
 05/16/2008 03:18:44 PM · #280
FYI the D50 does not have the image overlay feature. I believe the D3, D300, D200, and D80 have that capability.
05/16/2008 03:29:16 PM · #281
Originally posted by cloudsme:
Originally posted by scarbrd:
Originally posted by Bear_Music:
I am not aware that HDR-style merging for increased DOF would be disallowed. Have you seen a ruling on this?


Multiple exposure for increased DOF is allowed as I understand the rules. It has been discussed in the forums.


I haven't seen anyone do it yet. Do you know if its been tried? Could be opening a Pandora's box.


This one by the Doc.

05/16/2008 04:18:03 PM · #282
The one and only shot I've ever used my camera overlay feature for here at DPC.


05/17/2008 03:14:48 AM · #283
Originally posted by GeneralE:
The use of multiple images to enhance a single scene -- where nothing moves around, disappears, etc. -- is legal. Except for exposure, there should be no difference* between the individual frames which make up the composite.



o wow! so... if used to enhance DOF or focus on the same scene, same subject, then its ok? that is primarily what I was thinking of doing with the D300. Photos like this from Ursula



I'm pretty sure this is multiexposure, if not, you get my point.. its her flower shots I am looking forward to recreating.

Nald: I am aware of my camera's limitations, hence the initial post mentioning my desire to upgrade to the D300 :)

Message edited by author 2008-05-17 03:16:30.
 05/17/2008 05:32:09 PM · #284
Originally posted by aerogurl:
Originally posted by GeneralE:
The use of multiple images to enhance a single scene -- where nothing moves around, disappears, etc. -- is legal. Except for exposure, there should be no difference* between the individual frames which make up the composite.



o wow! so... if used to enhance DOF or focus on the same scene, same subject, then its ok? that is primarily what I was thinking of doing with the D300. Photos like this from Ursula



I'm pretty sure this is multiexposure, if not, you get my point.. its her flower shots I am looking forward to recreating.

Nald: I am aware of my camera's limitations, hence the initial post mentioning my desire to upgrade to the D300 :)


Nah, that's not a multi. Straight shot. Many others are though FWIW.
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