| Houston Underwater Photographic Society |
| UNDERWATER IMAGES | |
| Volume 20, Issue 11 | November 2002 |
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In August of 2000, David Lenderman spent four days land-touring in Bali while en route to Wakatobi Dive Resort. During this first brief visit David got a glimpse of Bali’s topside beauty. Before heading back to the states he realized a return trip was in order. There was so much more to see topside and covert reports indicated that the diving along Bali’s varied coastline needed a full investigation. After the 2000 trip David suffered from what he called "Bali Brain." It's a not well understood ailment, causing the sufferer to spend all waking hours dreaming of a return trip to Bali. Symptoms include cravings for Balinese food, feeling the need for daily massages on the beach and redecorating "Balinese Style." Upon researching the affliction he determined that there was no vaccine, no medication, no 12-step program available to combat "Bali Brain." The only possible cure was an extended visit to Bali. Following doctor’s orders (his wife), David returned to confront his Balinese obsession in August 2002. The prescription: temples, spas, and mountain scenery with spicy food followed immediately by pipefish, nudibranchs and frogfish, taken 4 times daily with large amounts of salt water.
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Bali After researching his options David decided to spend five days diving Tulamben on Bali’s east coast and 4 days diving Bali’s top muck diving spot, Secret Bay. The final 4 days would be spent in the inland arts and cultural center of Ubud. Come to the November 4th HUPS meeting to view David’s images of Bali both above and below sea level. David plans to take us on a tour of the island, above and below, and then share a two-projector, music synced slide show selected from 45 rolls of prime exposed film. For those that have experienced Bali’s intoxicating spells or for those that haven’t done so yet, November’s show will be an absolute "don’t miss" experience. If you were wondering, David’s trip did not cure his case of Bali Brain. Unfortunately it has advanced to the dreaded second-degree Bali Brain. Even worse is that David’s friend and travel companion, Paul, is also now suffering from Bali Brain. Another visit will be required. Doctor’s orders. As usual the meeting will be at the Bayland Community Center starting at 7:00 PM. A map and directions are at the end of this newsletter.
David Lenderman ©2002 |
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President's MessageNovember, the month of Thanksgiving, is here already. Many of us think that the holiday is a day to watch football and eat ‘til it hurts. As the name implies the holiday is meant as a time to give thanks for all we have. Along these lines I want to share something that I once read. It’s entitled "If" and the author is unknown:
What does all this have to do with underwater photography? Well, I hope to put into perspective how fortunate we are to have the ability to pursue such a hobby. Be thankful for and generous with all you have. See you November 4th,
Nominations Being Accepted for HUPS Member of the YearThis is a member that has gone beyond the call of duty to make HUPS a better club. If you know of such a person, put down in writing why you think they should be Member of the Year. Nomination letters will be accepted via e-mail, hand written note, scribbled napkin or whatever your preferred media. These should be given to Dennis Deavenport or David Lenderman. David’s email is underh2o@mail.ev1.net. The Prez and Vice Prez are not eligible for this award. Voting for Member of the Year will take place at the December meeting.
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All You Could Want to Know About UW Composition and More - October’s Presentation by Ken Knezick
Ken Knezick once again stepped up to the plate and hit a home run with his presentation at HUPS’ October meeting. Most of us are very familiar with Ken’s excellent photographic work and his incredible support of the diving community in Houston so it should come as no surprise that he is also an excellent instructor and an entertainer par excellence. Have you ever looked at a painting or a photo and liked it instinctively but couldn't explain why? If you have ever had this sensation, then October's presentation was an invaluable tool for understanding the good, bad, and ugly of underwater imagery. Successful artists have long understood the importance of studying composition to maximize the visual impact of their work. Learning to recognize and use good composition is the best way to progress from underwater snapshots to underwater artistry. Using digital photos from his collection of shots taken mostly on a recent trip to the Indonesian regions around Komodo Island and Irian Jaya, Ken presented a thoughtful and important short course on why certain photos work compositionally and why others fail. With example after example, Ken entertainingly illustrated rules of composition that can help us all to improve our photos. Basic and important skills such as the "rule of thirds," how to work with negative space, and adding interest through motion were major elements in his presentation. Perhaps one of the most interesting aspects of Ken’s program was his willingness to poke fun at some of his less successful images and describe why they just don’t work like they should. He seems to understand very well that it’s not enough for us to just view illustrations of good composition. By working through a series of images and discussing why they don’t work and how they could be improved, it becomes easier for us to assimilate these skills and use them on future dive trips. The only sad part of Ken’s presentation is that it had to end. It was quite honestly one of the best short courses we’ve had at HUPS on how to improve our underwater photographic skills. For more examples of Ken’s work, log onto http://www.divetrip.com.
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***NEW***
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HO, HO, HO. . . Christmas Party ApproachingThe December 2nd meeting will be our annual Christmas Party. Party Planners extrordinaire, Kathy and John Ringrose, have once again volunteered to organize and liven up the event. A sign up sheet will be at the November meeting if you want to contribute food, drink or other supplies. John and Kathy can also be reached via e-mail.
Photo Contest Winners
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Novice: | |
| 1st | Anne Millioud |
| 2nd Tie | Gary Merritt, Drew Trent |
| 3rd Tie | Gary Merritt, Anne Millioud, Sue Watson (2 images) |
Advanced: | |
| 1st | Jackie Reid |
| 2nd Tie | David Lenderman, Jackie Reid |
| 3rd Tie | Ken Knezick, David Lenderman, Jackie Reid |
Thanks to Jesse Cancelmo for sending the following: For a detailed review of the Seacam housing for the Nikon D1 digital SLR take a look here. The site also has background information on Stephen Frink’s choice to go digital.
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Audrey Mestre, 28, died October 12th off the Dominican Republic while attempting to become the world's deepest breath-hold diver. Mestre took a breath on the surface and rode a weighted sled down a cable to her target depth of 561 feet. She was supposed to inflate a balloon that would rocket her back to the surface, completing the entire dive in about three minutes. But safety divers saw Mestre was in trouble and began swimming with her toward the surface. The pair was met part-way up by Mestre's husband, world champion freediver Francisco "Pipin" Ferreras, who carried his unconscious wife to the surface. Attempts to revive her failed.
Those of you who saw the Imax film Ocean Men may remember Pipin Ferreras as the Cuban born world champion freediver.
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Strobe Use with Digital Cameras
After a break last time to talk about traveling, we’ll get back on track to putting together a digital underwater system. In August's column we talked about selecting a camera and housing and looked at some of the costs. This month I’d like to focus on strobe use with today’s digital camera setups – a subject of much confusion and misinformation. Before we talk about strobes, I’ll quickly touch on other lighting. When digicams first started going underwater, many people recommended using a constant light source such as a video light. This source is easy to use and they work on digital videocameras, so they should work pretty well with digital camera’s right? Well – not exactly. Here are two shots of the same coral, the first taken using a 100 watt video light and the second using dual strobes – both taken with a Coolpix camera:
Learning to take decent digital pictures using a strobe is not easy, and just like film photography, it takes patience and trial and error learning. But remember, this is digital, so all of your “film” is free! There are many consumer cameras on the market - and unfortunately, just about all of them treat flash use differently. I’ll review each “method” and describe which strobes are compatible and why. Internal Strobe Only: This is by far the easiest way to get good flash pictures – but remember, you’ll have to work within the constraints of the system. Since the camera controls the flash, you are essentially shooting TTL. However, the internal flash is weak, so you will probably have to shoot at the minimum working distance of your lens, and wide angle is totally out of the question. Getting close will also help to minimize backscatter.
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Digital Strobe Use The strobe you choose will be largely dictated by your camera and housing choice. The next few paragraphs will explain the different systems: "Hard-Wired" Cameras (TTL and Manual): Some cameras provide a socket for attaching an external strobe and some of the housings for these cameras provide a Nikonos or Ikelite bulkhead for attaching a sync cord. If the camera provides for TTL control, then the system will behave a lot like a Nikonos V or housed SLR. The Nikon Coolpix and Fuji S2 are two examples. If the camera does not provide TTL control of the strobe, it can usually still fire it in manual – but the photographer has to set the strobe power using guide numbers. This is the case for the Tetra housing for the Olympus cameras.
Preflash Cameras: Most digital cameras don’t do TTL flash metering like film cameras do. Instead, they send out a series of preflashes and basically "read" them as they come back to the camera’s sensor. This information is used to set the power and duration of the flash. The majority of consumer digital cameras use this approach and do not have a hotshoe or socket for an external flash, so a slave strobe must be used. The slave strobe can be set to trigger off the camera’s internal flash but of course, the housing must be clear. Unfortunately for us, most traditional slave strobes fire when they detect a flash – so the camera’s preflash sets them off. A few progressive companies have modified their strobes to comply with this preflash system. TTL Slave – Ikelite has converted their TTL slave sensor for digital use. The electronics have been changed so that the slave sensor can detect the preflash coming from the camera’s small internal flash and "tell" the strobe to mimic it. The camera reads the light coming back to it (from the strobe) and sets the flash duration. It then fires the camera’s main flash and the strobe mimics that too! To avoid backscatter the small flash on the camera is blocked or reflected up towards the TTL slave sensor.
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Digital Strobe Use Manual Slave -- Normal slave strobes can be used with digital cameras but they have to be "told" to ignore the small preflash and trigger on the camera’s main flash. The Sea and Sea YS90DX is one such strobe. Since it is a manual slave, the strobe designers have added a 12-step power controller for fine adjustments. Guide numbers can/should be used to help set the strobe power, but most digital shooters take a few shots at the start of a dive and review them, then set power according to this "instant feedback." ROC – The engineers at Light and Motion have actually put the strobe manual power controller IN the housing. They call it the ROC (Remote Optical Controller) and it gives fine control over a wide variety of strobes. Virtually any strobe can be used with this system.
Fuji S2pro and dual strobes. This shot was actually underexposed by about a stop but was "saved" using Photoshop Consumer digital cameras don’t have the dynamic range of film – so if you are not careful you can easily overexpose a shot. Overexposed or "white" pixels don’t contain any information – that’s why many digital shooters recommend erring on the side of underexposure. Believe it or not, using Photoshop, you can bring a shot up one, two, or even three stops! The preceding photo is a good example. Hopefully this column has cleared up some of the questions you may have about strobe use. Choosing a strobe and camera/housing setup is certainly a complicated decision. The easiest decision is to go with a hard-wired sync cord and TTL control – after all that’s just about like shooting with a housed SLR. But as you can see from the September column, it’s the more expensive choice. Whatever system you choose, with a little forethought and practice, you’ll soon be able to get beautiful saturated shots that you are proud to show off to your dive buddies and local Underwater Photo Society friends.
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Monthly Photo Contest Subjects for 2002
UpComing Meetings and Events November 4, 2002 - HUPS meeting
December 2, 2002 - HUPS meeting
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HUPS Monthly Photo Contest Rules
The Novice category is for those that meet the following criteria:
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2002 HUPS Officers and Committee Directors
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The Houston Underwater Photographic Society (HUPS) meets the first Monday of every month at 7:00PM at the Bayland Community Center, 6400 Bissonet, near Hillcroft. Social time begins at 7:00PM for members and visitors to get acquainted. Visitors are always welcome to join us. So, stop by and see what we are all about! |