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Posts posted by segal3

  1. Ikelite used to make one - the #4200 Digital Exposure Meter. There may be others.


    However, you should be able to use a regular camera in waterproof housing, with a white semi-opaque bulb covering the port. Calibrate ISO/shutter/aperture on the surface to a standard light meter reading, and then take measurements with the camera's exposure meter underwater. Match the underwater exposures to your calibrated measurements to determine your ambient light (note, there may be some shift for meter WB correction).


    Steve could be right, though, if they're trying to figure out how much more light is required to sustain photosynthetic life at depths.

  2. For instance, in our list we have;

    spot tail moray: spotted-tail moray: spotted tail moray: Gymnothorax equatorialis

    spotted tail moray: spot tail moray: spotted-tail moray: Gymnothorax equatorialis

    spotted-tail moray: spot tail moray: spotted tail moray: Gymnothorax equatorialis


    These multiple entries are correct and do not need to be deleted from your list.


    The entries above are all for the same species, a Gymnothroax equatorialis. If you notice, each entry starts with a different common name of the same animal.

    Lightroom only "sees" the first word in a line of keywords when autofilling in the Enter Keywords box. Therefore Lightroom would not autofill the "add keyword tag line" if the species keyword was only in our list starting with spot tail moray and the user typed spotted-tail moray. You would then feel our list is incomplete.

    I believe this issue is avoided if one uses the "Filter Keywords" search option (Alex's method #2) under Keyword List. In the same way that keyword entries are not duplicated to put Latin species names first, it's probably cleaner to have single entries rather than triplicate for multiple common names.

  3. You complained, they removed the picture. What else to do? Nothing much IMHO. This worked as it should.

    Hypothetical situation: You go on extended vacation. Someone takes your car (or lenses, or [fill in something of value]) and uses it for weeks. You return from vacation, notice the item missing, and complain. The police find the individual and the only thing that happens is they must return the item?



  4. We have thought of that, and in some sense makes life a lot simpler but I wonder if there would be an appetite to enter such a competition and would sponsors be happy if the general quality of the submissions was somewhat less.

    I think that the image quality in the Our World Underwater competition* Traditional categories has been been superb over the years.


    The "Traditional" divisions allow for the adjustment of brightness, contrast, color, and sharpness only. Cropping, cloning, and other digital manipulation is not allowed in this category. This restriction on digital manipulation will enable people who are not as savvy at Photoshop to compete on more-or-less even ground as those with more experience. It also highlights composition and lighting skills by not allowing cropping and cloning. Before selecting winning entries, we reserve the right to audit your original RAW or JPG files.


    ...but certainly some of the most stunning images we were sent were disqualified.

    This sounds like a lament that insider traders have the best portfolio returns :). Do you think that individuals submitting images have been indirectly encouraged by wins in previous years, where perhaps these compliance standards were not as thoroughly checked or enforced?


    Rules should be applied uniformly or you are disadvantaging those who did follow the requirements.


    (*disclaimer: co-organized by Wetpixel with DivePhotoGuide)

  5. In the slide/film/print competitions of years past almost no one actually developed their own slides/film and printed their own images. You could of course give the printer some instructions for dodging/burning/spot removal but most photographers didn't do that themselves.

    I really question this - I know of a couple situations years ago where some very detailed contrast masks, far past disqualification under the current rules, were utilized during film darkroom processing for images entered into competitions.


    Just because it's easier (or more widely known!) now doesn't mean people weren't cheating the system before, especially with the prize incentives.

  6. The (topside) lighting that you had in some of those areas is spectacular. Enjoyed the near camera sacrifice by Phil, and the cute sea flea/nudibranch procession by Julie :), among all the other excellent critter findings and photography.


    Those of you shooting lots of supermacro on this trip - can you detail your setups these days (and whether you're happy with it, or still trying various options)?


    Really excellent work putting together the slideshow, Eric. Most people may not realize just how much time, effort, and lack of sleep goes into editing video, collecting and compiling images at the end of the trip, and splicing it all together for the broader community to enjoy.

  7. Thanks Luiz; we found the individuals in depths of approximately 50-70 feet. I have a number of photos, if you find there's interest.


    Do the juveniles lose their spots as they mature? The tails were spotted with the same pattern as the body (no change) and did not have the distinct black coloration that an image at Fishbase shows for the species. I note on the MSAP page that they say "may be a Blacktail...."

  8. mattsegal_20110905_88W0527.jpg


    Underwater at a macro site in Gambier Bay, Alaska, we stumbled across some very beautiful fish. Among a field of skeleton shrimp, these rather large snailfish (3-6") had nearly translucent milky skin with golden-brown spots, and were impervious to the proximity of the camera. We saw both single individuals and what appeared to be mated pairs (larger and smaller fish together, with the smaller consistently exhibiting a slightly yellower skin tone). When not briefly free-swimming to evade the annoyance of shrimp claws, the snailfish would curl their tails nearly to their eyes.


    Does anyone know exactly what species this is?

  9. Thanks, everyone. I'm looking forward to seeing images from Berkley's trip, as well!


    PS - did you get any manatee images from that murky morning when we met at Crystal River in March? :-)

    That water was pretty murky, huh. The nice thing about having almost no visibility is not worrying about people or their fins showing up in the background! :) I did get a few captures, but never did see any manatees in the clear springs later that week. I'm hoping to head back in the winter when it's a bit colder. Did you have any success?

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