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DS256

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DS256 last won the day on June 1 2016

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About DS256

  • Rank
    Moray Eel

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    Male

Additional Info

  • Show Country Flag:
    Canada
  • Camera Model & Brand
    Olympus E-PM1
  • Camera Housing
    Olympus PT-EP06L
  • Strobe/Lighting Model & Brand
    2 x Olympus UFL-2

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  1. DS256

    Algae?

    Thanks Wolfgang especially for the note on it's health. I can see the resemblance to my picture from https://images.robertharding.com/preview/RM/RH/HORIZONTAL/1103-32.jpg
  2. DS256

    Algae?

    I'm now wondering if this could be a Giant Basket Star
  3. Can't figure this one out. Closest I've seen is a Segmented or Thicket Algae. This is from Grand Cayman Island.
  4. I just found this useful article that shows how to get LR to tell you the PPI it will be using. In the image above, I had 'Print Resolution' checked and set to 300 ppi. If I uncheck 'Print Resolution', it shows it would print at 103 ppi. So by using 300 ppi, LR will resampling. Also found some useful details in this Adobe article on print resolution.
  5. Thanks kdgonzalez. A very useful video. I think one point that may have effected this is how much auto sharpening Topaz does which may have given it a edge. What it give me a sense of is the relation of PPI loss which I need to look into more.
  6. I find that sometimes I either have to take a picture quickly or I will lose the subject and/or I take a picture then find a picture in a picture. In any case, I get into severe cropping to get the image I want. In the attached image, the original ORF photo was 4032 x 3024. The cropped version is 1356 x 1077. One web site I use says the cropped version should not be printed larger than 8 x 10". I just used LightRoom Classic to print it out on 11 x 14" paper and it looks good. That implies that LR did a good job of resampling to enlarge it. I come across this enlarging need frequently and was wondering if there are other good tools to use. Thanks
  7. DS256

    Shell?

    Thanks for the suggestion. As you can expect, lot's of pictures of worms that are open. Haven't found any pictures of those retracted/closed. Fortunately, I found some YouTubes. Here's one that shows what Giggenk and Kdgonzalez suggested. Looks like a retracted worm https://www.shutterstock.com/video/clip-6007769-feather-duster-fan-worm-retracting-back-into
  8. This is a picture of, what I think, is some kind of shell on a brain coral. This is in Grand Cayman. Am I correct? Thanks
  9. Thanks bmorescuba. Your link provided an additional insight. I believe these are in the 'Littoral zone' of the shore. I was incorrect in the Cayman tides. They exist so there is a high/low water mark.
  10. Not exactly underwater but close. I have some shots of plant (?) growth along the ironshore of Grand Cayman. There is very little tide so I assume these are exposed all the time except for wave action. So looking for help in two areas: Anyone have any idea what this is? How do you classify these so I can look them up? Obviously not something you'd find in Humann & DeLoach. Thanks
  11. I was just made aware of this YouTube about a researcher who is/has developed AI for underwater color correction. See Curious that she needs to use a color chart unless that's just her check point for color accuracy. Anyone heard of this work?
  12. Thanks Interceptor121. I should have explained that these days I shoot with a Olympus E-PM1 and dual UFL-2 strobes. My question was more related to older pictures i have, from on an older camera, before I used strobes. It's also related to those shots where strobes are not practical.
  13. I know that we lose different parts of the light spectrum by depth as well as length of path the observed light has to travel. In the past, I've made use of a grey card place in the picture and/or look for a whitish/greyish sand/sand pan to set the white balance in LR Develop. Is the loss of spectrum consistent enough that one could have HUE settings for the different colours, starting with red, that would be a starting point for color correction instead of WB? I'm wondering if settings in HSL/Color would provide more accuracy than WB temp/tint. Thanks for any comments including give my head a smack because this doesn't make sense.
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