Focus Stacking - Banksias

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Focus Stacking - Banksias

Postby Mr Darcy on Fri Aug 10, 2012 5:07 pm

I love banksias, but have always struggled to photograph them. Between the size of the flower and the spikiness of the foliage, I have never quite managed to pull off the "money" shot.
While on the walk with Cameron yesterday I tried a few handheld shots with focus stacking in mind.
The results weren't as wildly successful as Rodney has been managing, but I am pleasantly surprised at how well the concept works even without all the whizzbangery the "experts" try to sell you to do this. Just a camera and a lens. Not even a tripod.
This one I used fixed focus on the lens, and moved slightly between frames.
Image

And for this one I stayed put and moved the focus slightly between shots
Image
Yes the backgrounds need some work, but that's not the point of the exercise.

Comments welcome.
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Re: Focus Stacking - Banksias

Postby Mj on Fri Aug 10, 2012 5:11 pm

Hey Greg... I'm most impressed with that first one.
How many frames did you take? To get that result handheld is very handy.
The background is a non-issue... look pretty easy to sort out in post to me.
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Re: Focus Stacking - Banksias

Postby Mr Darcy on Fri Aug 10, 2012 5:21 pm

The first one was 9 images and the second 7. There are some gaps in the stack though.
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Re: Focus Stacking - Banksias

Postby Mj on Fri Aug 10, 2012 5:33 pm

Pretty good going to get 9 stackable shots I reckon... the gaps are not that noticeable on a small image but are certainly clear at full size.
I used Helicon to do a 34 stack using android and that seemed to work well for automating a larger number of shots... no good for hand holding though.
Merging the stack didn't work so well but I think I stuffed something so will need to have another go.
If I can get a complex product shot to work 100% I'll then try in the field with maybe a grevillea (but I'll use a tripod).
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Re: Focus Stacking - Banksias

Postby Remorhaz on Fri Aug 10, 2012 6:40 pm

Thats pretty good there Greg - and I'm getting more and more impressed as to how good the software is at auto aligning these days. I went out at lunchtime again and did some more Botanic gardens - it was quite a bit windier this time (not as bad as today :)) but it's amazing what the software manages to pull off with the subject swaying between the frames.

My tip (and what I now do) is stack the images and then blend (actually almost totally paint/mask) back in the best bokeh (generally from the nearest image) to the majority of the background - that way you tend to get much less of the jittery/nervous background. This tends to be easier with some shots than others I've found - especially if you have to deal with crap near the edges of your actual subject (or the things you're trying to get sharp).
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Re: Focus Stacking - Banksias

Postby Mr Darcy on Fri Aug 10, 2012 7:49 pm

Remorhaz wrote:with the subject swaying between the frames.


In my case its the photographer doing the swaying. :(

I am still just using PS for the stacking. It seems to mostly do the job. I'm not convinced I want to keep on down this road & don't want to spend the money yet.
I know there is a try before you buy, but I have a history of buying anyway & then never using it again.

Remorhaz wrote: and then blend (actually almost totally paint/mask) back in the best bokeh (generally from the nearest image) to the majority of the background

Good tip. I'll give it a whirl.
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Re: Focus Stacking - Banksias

Postby aim54x on Fri Aug 10, 2012 7:50 pm

These turned out quite nicely, esp the first one! I guess we can stop buying all this gear now... :twisted:
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