Fun with Depth-of-Field

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evenwind

 
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Fun with Depth-of-Field

by evenwind » Sun Feb 03, 2019 7:45 pm

There was time, many decades ago, when I could be found walking thru the woods with a Nikon FTn and a shoulder-mounted, manual, 400mm f8 lens, looking for birds to annoy. I'd like to think that I knew a bit about photography back then, especially about the shutter speed/f-stop/depth-of-field compromise. These days, if I'm not taking pics of the family, I'm taking pics of my plants. And I'm using a "simple" point-and-shoot camera. I've been wasting a lot of virtual film trying to get whole flowers in focus in Macro mode. I was recently looking thru my camera (Olympus TG-4) manual for I forget what and came across a pretty neat feature. You can set it in a version of Macro mode that automatically takes multiple pics at slightly different focal points and then "magically" combines them into one pic with what amounts to a deep depth-of-field. You wind up with two pics - the original and the processed one. I kinda wish that I'd bothered to read about this feature when I first got the camera but reading the manual is for losers, right? And there are probably other point-and-shoots out there with something similar - maybe it's even a common feature? Anyhow, RTFM!
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finished, adjusted, product
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un-adjusted "normal" depth-of-field
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depth of field adjusted closeup
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nimbulan

 
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Re: Fun with Depth-of-Field

by nimbulan » Mon Feb 04, 2019 3:33 am

The technique is called focus stacking. It's quite necessary for a lot of macro work but landscape photographers are known to use it too.

I don't think it's too common to have in-camera support but I've done it with software on my computer a number of times.

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evenwind

 
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Re: Fun with Depth-of-Field

by evenwind » Mon Feb 04, 2019 3:35 pm

So it's a known "thing". Cool! (I really didn't think Olympus invented it just for a point-and-shoot, but you never know.) Thanks for the info.
"If a man walks in the desert and speaks where no woman can hear - is he still wrong?"

- T-shirt in Old Town, Albuquerque, NM


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