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4K screen capture -> nudibranch eggs

Started by wydeangle ·

  • 3Posts
  • 3Replies

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4K screen capture -> nudibranch eggs

3 posts
  1. Here's a screen capture of nudis and their eggs from the Blue Heron Bridge, Phil Foster State Park, Riviera Beach, Florida USA:

    post-18574-0-17242400-1432555819_thumb.jpg

     

    The Nudibranchs are Flabellina Dushia (thanks to Anne D. for the ID!) and are about 5/8" (1.6cm) in length.

     

    I used the new ReefNet diopter adapter and a +10 SubSee diopter on the Gates AX100 housing. The Sony AX100 has firmware v3.

     

    The tiny spiral of eggs is clearly visible, making the individual sand grains look like large boulders!

     

    Ask me if I'm sold on 4K LOL

     

    Tom

     

    PS: The (absolutely horrible) video is on Youtube at https://youtu.be/1NtMt7f0CjU I will get better, I promise - it was my first try at using a diopter...

  2. You can embed the video if you paste the full URL:

     

     

    Also, did you zoom in with your AX100? When using diopter, you need to zoom in to get more magnification. Are you using video light? There's a lot of flickering going on.

     

    Anyway, good to know there is Nudibranch in Blue Heron Bridge. I will be moving down to West Palm area in late July so I will get the chance to dive there more and look for them myself!

  3. kc_moses,

     

    Thanks for the embedding - I was just coming back to learn how to do it.

     

    The flickering is sunlight and waves ten feet above. I don't know what to do about that except maybe bring down an umbrella and use lights LOL I have lights but did not use them.

     

    I was zoomed in, but not quite far enough as you can see from the vignetting. I'm in maximum learning mode as it was the very first time I've ever tried to use a diopter.

     

    One thing that kept me from zooming more was the loss of focus if I zoomed in more. If I moved back a bit I might have done better - I'll try that next time. There's a pretty narrow depth of field with the +10, so distances are kind of touchy; a little more zoom, or a little more distance and things get out of focus in a hurry! I also have a +5 which hasn't been tried yet. Not to mention the surge...

     

    Nudibranchs abound at "the bridge." If you look for Caribbean Sea Slugs at Amazon, you'll see there are quite a few there. One co-author is my source for the ID above. Not sure but I am under the impression there are more than 100 species of slugs and nudis at the bridge. More than 300 species of undersea critters have been documented there including seahorses, frogfish (we saw seven there last week) blennies of all descriptions and and and

     

    I predict you'll like it!

     

    Tom

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