check out this little dude

[kb27973]

When I saw this guy hanging out of a christmas tree rock at the LFS I had to buy it. The crab is living in a hole like the worms live in. This is the best shot I could get even at ISO 1000.

<a href="http://www.flickr.com/photos/29754959@N07/3501458607/" title="assort-2 by kb27973, on Flickr"><img src="http://farm4.static.flickr.com/3405/3501458607_5abc758315_o.jpg" width="800" height="537" alt="assort-2" /></a>

[rbaker]

That's very cool. Great job!

[Rhizo]

Haha nice!

[imcosmokramer]

good catch

[kb27973]

Thanks for the replies all. So I seem to have hit the magnification limit on my 100mm Macro. If I want more magnification I would need a > 100mm Macro? Is that the way it works?

Ken

[IPT]

yes, or you could get extension tubes which will allow you to move closer to the subject (thus making it bigger in the frame). With the tubes you lose DOF too. Also it assumes that you can get closer (subject really close).

[truthdesigns]

Nice find and great shot!
I have heard about the Sea and Sea Is that an extension tube?

[Tremont]

Kenko makes some cheap extension tubes for the Canon (don't even bother paying the Canon price for a hollow tube). They would allow you to go up to 2x.

Another option is the MP-E 65 mm lens which goes up to 5x but you need to be able to move your corals up to the glass etc... (at the most you will get 3 inches of range on it).

-Tre

[kb27973]

Yeah, I have the extension tubes but they aren't doing me much good with the coral shots because I can't get physically closer. I'm at the glass. I was reading about teleconverters that will increase the focal length. That would be what I'm looking for right? Make my 100mm Macro into a 180, 200mm... Anybody ever try one? Do they work or are they a gimmick?

Ken

[swjim]

Teleconverters work, but you lose a stop with the 1.4x and two with the 2.0x. You'll lose quite a bit of sharpness with the 2x TC so I would advise against it unless the reach is truly more important. That said, B&H has a compatibility chart for the Canon TCs and the 100mm macro isn't listed. You can find the link to it here: http://www.bhphotovideo.com/c/product/220456-USA/Canon_6845A004AA_1_4x_EF_Extender_II.html#features

[ibanezgfx]

that is a crazy looking little crab. very cool!

[kb27973]

Thanks for the info swjim. I will check out the link.

Tremont - That MP-E 65 lens is VERY cool. It may have to go on my wish list. :)

It is crazy looking ibanezgfx. I tried my best to get those strange eyes in focus.

Ken

[malmoft]

Naughty guy lol

[nikesb4l]

that crab is pretty awesome, cool eye pattern. Nice shot too

[Recty]

It looks like a small pistol shrimp, to my eyes.

[Alexander180]

awesome looking crab. Does he emerge much in the light, or more so at night?

[kb27973]

He hangs out of his hole all day. When something startles him he shrinks into it and covers it with his claw. There is some algae around the edge so I'm not sure if it farms that for food or grabs stuff from the water column. What a life huh?

Ken

[Grunt]

Great shot! Have you noticed any blue colored hermits?