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DPChallenge Forums >> Tips, Tricks, and Q&A >> Focus stacking and HDR
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Showing posts 1 - 9 of 9, (reverse)
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12/03/2014 08:00:15 PM · #1
What would one do if he wants to do them both at the same time? Do i stack the focus first and do the HDR later, or vice versa?

12/03/2014 10:02:12 PM · #2
If it were me, I'd do the HDR tonemapping on the individual sets first, using the same settings for each, then stacking them.
12/03/2014 10:17:40 PM · #3
I'm not sure you can get the proper outcome considering 10 images (advanced). Without rulesets, I would run an HDR for each focal point at the same settings and then run a focus stack, but with only 10 exposures (advanced) you have quite a problem, not sure it's possible to get a real improvement. If it were possible, I would assume performing 3 close, 3 middle, and 3 far and HDR first then stacking afterward would be the best, or alternately running a +/- "simulated" HDR off of the 10 frame focus stack, depending upon your setup, would be the best.
12/04/2014 01:56:19 AM · #4
I wouldn't be surprised if, in a "moderate HDR" situation, one in which single-image tone mapping works, the best and easiest approach would be to tone map the stacked composite as a last step. Be a HECK of a lot easier, and here's why: when you do an HDR merge there's often a big difference in how the OOF areas interact with their surrounds, that's where artifacting shows up basically, there and in the contrast differentials which are of course different where sharpness hovers over unsharpness. So it would seem to me that the stackinmg software might produce very strange results trying to stack tone mapped images...

If you CAN successfully stack tone mapped images, then Derek probably has the right idea: first try a tone mapping on a single exposure, and if it works save it as a preset and apply it to the rest of the exposures, then stack for focus. If the single-image tone mapping doesn't work, create an over-under set from the single image, merge those in the HDR software, and then tone map THAT and save it as a preset, then do the same for the remaining 9 exposures using the preset as the last step. But that's AWFULLY cumbersome.
12/04/2014 01:38:36 PM · #5
damjanev, No relevance to your question, but are you using software to do the focus stacking? I would love to be able to do this, but can't afford the software right now.
12/04/2014 06:10:47 PM · #6
Originally posted by Elaine:

damjanev, No relevance to your question, but are you using software to do the focus stacking? I would love to be able to do this, but can't afford the software right now.


I haven't sone it before, but Apparently Photoshop can do it without any additional plugins.
12/05/2014 10:15:36 AM · #7
I'll have to look into that.
12/05/2014 09:11:17 PM · #8
Originally posted by Bear_Music:

I wouldn't be surprised if, in a "moderate HDR" situation, one in which single-image tone mapping works, the best and easiest approach would be to tone map the stacked composite as a last step. Be a HECK of a lot easier, and here's why: when you do an HDR merge there's often a big difference in how the OOF areas interact with their surrounds, that's where artifacting shows up basically, there and in the contrast differentials which are of course different where sharpness hovers over unsharpness. So it would seem to me that the stackinmg software might produce very strange results trying to stack tone mapped images...

If you CAN successfully stack tone mapped images, then Derek probably has the right idea: first try a tone mapping on a single exposure, and if it works save it as a preset and apply it to the rest of the exposures, then stack for focus. If the single-image tone mapping doesn't work, create an over-under set from the single image, merge those in the HDR software, and then tone map THAT and save it as a preset, then do the same for the remaining 9 exposures using the preset as the last step. But that's AWFULLY cumbersome.


Thank you for much more specifically explaining my post than I managed to :)
12/06/2014 06:06:25 PM · #9
We had George Lepp do a presentation at one of our recent club meetings, he does a lot of focus stacking and included several images he had focus stacked, HDR'd, then combined into a pano. The amount of images shot was insane but the results were impressive. I believe he had focus stacked his sets of exposures then combined the completed focus stacks for the HDR, then combined thr HDR images for his panos, I lost count on the number of images shot for a pano of a macro shot but the number was very high. I figured since he is supported by Canon he was sent out to teach people how to wear a camera out in a short time.... Really cool stuff to see
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