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Everything posted by DS256

  1. ChrisRoss, the 50,000K shot is the one with the diver holding the slate. There is a tiny spot of red on the left hand diver that doesn't appear in the size of the picture I had to upload. Here it is from a screen scrape of LR.
  2. I'm trying to understand what is happening here. The picture with the mooring bits (Colour Loss.JPG) has the left picture taken without flash (as shot) and with flash on the right. The WB for each is 5,800 and 7,450 The picture of the rear of the wreck (Colour Loss 2.JPG) has the left picture 'as shot' and with WB selected in LR from the white card held by the diver on the right. The WB's are 5,900 and 50,000 (as calculated by LR) Is the 50,000 an anomaly with LR? I can't get my head around what 50,000K means? Thanks
  3. Sorry, this appears to be a beautiful picture created by Jorge Abalo. See https://fineartamerica.com/profiles/jorge-abalo and Google "jorge abalo coral reef"
  4. This was posted by Harry Bushwitz (https://www.facebook.com/HarryBushwitz) on FB but no other details. Anyone have any idea of what it's called?
  5. DS256


    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
  6. DS256


    I'm now wondering if this could be a Giant Basket Star
  7. Can't figure this one out. Closest I've seen is a Segmented or Thicket Algae. This is from Grand Cayman Island.
  8. 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.
  9. 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.
  10. 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
  11. DS256


    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
  12. 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
  13. 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.
  14. 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
  15. 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?
  16. 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.
  17. 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.
  18. There are a number of LR Guru's that can comment on this. Check out https://laurashoe.com/beginners-getting-started-with-lightroom/. Laura ran a webinar earlier this year comparing LR6 to Classic which convinced me to move to Classic. Bottom line, there are no new features being added to LR6.
  19. I use a asus proart PA249 as my main monitor and quite like it. I've had it for a number of years so sure it's been replaced by something newer.
  20. Thanks Wolfgang. That makes a whole lot of sense when I look at the whole picture.
  21. This looks like someone took a saw through a sponge to cut it off. Anyone have any idea what these groove marks are?
  22. My wife and I love the sister islands. Much more quiet. Must be what GC used to be. Diving is great. Beware the weight restrictions on flights especially to Little Cayman where you are on a Twin Otter. If you fly to Brac, you can look and book on the jet that continues on to Jamaica.
  23. My wife has some back and hip problems so we've been using the resorts that are part of Clearly Cayman. They provide a 'valet' style service so my wife does not need to walk with a tank on her back. So, we normally do a package including accommodation. We've done all three islands with them. We've also dove a lot with Sunset Divers. They are just 20 minutes south of George Town walking. You may also want to consider attending one of Cathy Church's annual Photofests in May. A great week of morning photography and afternoons of lectures on different topics. What I like about these is that you dive one relatively shallow dive site for the morning. As you need to, you come up, stay in the water, and the boat crew changes out your tanks. You can spend a lot of bottom time at one spot getting that one great picture you want. It's a dive week for U/W photographers. Some of my favourite dive sites are Devil's Grotto which is reachable as a shore dive from Eden Rock divers. Also like the Doc Poulson and Aquarium. Killer Pillar has some great Pillar corals. You can see some older pictures of mine at http://caymanmarinelife.naishfamily.net/
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