First attempt at photo stacking

Started Apr 19, 2013 | Discussions thread
Duncan C
Veteran MemberPosts: 7,602
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Re: First attempt at photo stacking
In reply to KEVZPHOTOS, May 23, 2013

KEVZPHOTOS wrote:

Gpruitt54 wrote:

KEVZPHOTOS wrote:

Hi Tommy,

It's certainly a good result for a first time attempt.

The image does look somewhat noisy-grainy when viewed in the larger size.

For shots like this you wanna shoot at base ISO (100 or 50)...and for a flower that depth (I'm guessing that it was probably at least 8-10 cms deep.....one would normally require more than 8 shots to capture the entire DOF adequately with enough "overlap" between images.

Even with stacking, I would shoot at f/16 and take at least 20 images with a subject like that.

On this blade of grass I used 37 images - for example.

http://kvincentphotography.ca/stackedimages/h3da2bbe#h3da2bbe

http://kvincentphotography.ca/stackedimages

Just keep doing it...practice makes perfect.

Please also note - applying "selective lighting" in post is crucial on these kind of flower images, stacked or otherwise.

KEV

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"No problem can be solved at the level of consciousness which created it" - Albert Einstein

WoW! I want to try this. Would I be right to assume that all these shots are done indoors with studio lighting?

Yup, your assumption would be right.

On the blade of grass, how did you prevent the water drop from sliding down the blade as you were shooting?

I fixed  the water drop to the blade of grass with super glue so it wouldn't move.

( errh, no - that's a lieĀ  )

I can't remember, but I probably had the blade almost in the horizontal position...so the water drop couldn't fall off...and then flipped the image 90 degrees to present it.

What are you adjusting the F stops or your focus.

One never adjusts the F stop when stacking....you simply use a focus rail to shift the entire camera rig...about 1mm at a time. One also never adjusts the focus....it stays constant.

That's too broad a statement. You never adjust focus, but plenty of people do. (Me included.)

I get the shot set up using live view on my camera, and then drive the stack using Helicon Remote. It works quite well.

I just got a set of (manual adjustment) rails for my birthday, and may try my hand at adjusting the camera rig between shots. However, I think I need to build a shooting platform to mount my subject and camera on the same stable base. Right now I have my subject on a table and my camera on a tripod (on carpet which is on top of a concrete basement floor.) I don't think I will be able to keep things stable enough to be able to turn the focus knobs on my rails without causing camera movement.

Here's my blog article with the basics:

http://kvincentphotography.ca/blog/2012/1/focus-stacking

KEV

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"No problem can be solved at the level of consciousness which created it" - Albert Einstein

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Regards,
Duncan C
dpreview and PBase supporter.
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http://www.pbase.com/duncanc
My macro gallery:
http://www.pbase.com/duncanc/macro_pictures&page=all

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