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FORUMS Photo Sharing & Visual Enjoyment Wildlife 
Thread started 17 Mar 2004 (Wednesday) 20:38
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In The Heart Of A Mum

 
Scottes
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Mar 17, 2004 20:38 |  #1

A Mum, taken with a 100-400 L IS @ 400 + 68mm of extension tubes + 500D , ISO 100, f/40, 1.4 sec

Resized for web, no crop.

IMAGE: http://www.itsanadventure.com/postimages/heartofamum.jpg

Not for the faint of heart. This setup is a monster, and DoF is measured in nanometers.

You can take my 100-400 L away when you pry it from my cold, dead fingers.
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Tom ­ W
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Mar 17, 2004 21:02 |  #2

Sweet macro! Particularly considering your settings.


Tom
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MediaMagic
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Mar 18, 2004 00:03 |  #3

Great, I spent 130 bucks on the 500D after you posted the shots of the Griffin, and now this. I gotta buy extention tubes.. That SMB better pay off for us! lol

Great shot. This one is *reallllllly* smooth.




  
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c0ntr0lz
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Mar 18, 2004 03:00 |  #4

i dunno the center it seems to be a bit out of focus
but it's a very awesome shot


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Scottes
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Mar 18, 2004 09:29 |  #5

c0ntr0lz wrote:
i dunno the center it seems to be a bit out of focus
but it's a very awesome shot

Yes, much of it is out of focus. Even at an aperture of f/40 the DoF is just under 12mm if my calculations are anywhere near correct. If my calculations are off then the DoF could be as high as 14mm. :)


You can take my 100-400 L away when you pry it from my cold, dead fingers.
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Scottes
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Mar 18, 2004 09:35 |  #6

MediaMagic wrote:
Great, I spent 130 bucks on the 500D after you posted the shots of the Griffin, and now this. I gotta buy extention tubes.. That SMB better pay off for us! lol

Great shot. This one is *reallllllly* smooth.

And just think... I forgot to put on the 1.4 TC... This is about 1.7:1. With the 1.4 TC I should get almost 2.4:1.

Don't worry about the SMB. It's a given. We'll each have a Mk II and a 600mm f/4 pretty soon. :)


You can take my 100-400 L away when you pry it from my cold, dead fingers.
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stoneylonesome
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Mar 18, 2004 10:18 |  #7

holy macro Batman, that's one sharp close-up. Nice job


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JZaun
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Mar 18, 2004 14:44 |  #8

Nice Nice macro,, more practice for me.

JZaun




  
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where1
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Mar 18, 2004 14:58 |  #9

Nice and close, I like it. I like the lighting, how close was the front of the lense, no shadow of it.




  
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Idoc
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Mar 18, 2004 16:01 |  #10

Really awesome macro! Wishing I had a 10D everyday :wink:




  
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Scottes
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Mar 18, 2004 16:23 |  #11

where1 wrote:
Nice and close, I like it. I like the lighting, how close was the front of the lense, no shadow of it.

The front of the lens was 7.5" from the mum. Most of that is hood, so I had about 2-2.5" from the hood to the mum. I had the lights (3 x 150-watt Halogens) ranging from 6" to 18" away. It's a major pain to get the lights so that they're not pointed toward the lens when they're that close.

I really need to make some type of "barn doors" along with diffusers. This won't be easy since they're Halogen and get too hot. I may have to move to 150-watt flourescents, but they're so big...


In the past I used a setup like this:

IMAGE: http://www.itsanadventure.com/postimages/400_setup.jpg

That's a 2' x 4' ceiling light panel, with halogens pointing at it to diffuse.

But that doesn't work for extreme closeup like the mum - the object has to be back inside the dome to get light to the front of it. But now it's too far away from the lens... :)

You can take my 100-400 L away when you pry it from my cold, dead fingers.
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MediaMagic
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Mar 18, 2004 16:59 |  #12

so how in the world do you calculate DOF for a rig like that?




  
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liv2
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Aug 29, 2017 10:38 |  #13

wow. this is great! Extremely detailed.




  
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In The Heart Of A Mum
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