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Everything posted by adamhanlon

  1. So, There is no issue with shooting subjects on the dome with an 9" dome! While I understand that small domes can fit into smaller spaces, you still need to get the lighting in too! Intended as somewhat of a joke, but it was also shot with a 9"dome... Mini domes offer more magnification so can make smaller subjects seem larger in the frame, which can of course be a creative advantage. However, unless all you are shooting is this type of image, I am unconvinced that the optical disadvantages outweigh the creative advantages!
  2. The judging for the 2021 UPY contest is about to commence, so Alex and Adam discuss how the judging process. Alex talks about UPY, while Adam joins from the Wetpixel Masters and DEEP Indonesia contests perspective.
  3. Thank you for your responses. I get that lots of people like them. My question is why? With the possible exception of Alex's grouper shot, all the above images could have been shot with larger domes. Of course it is impossible to be absolute without knowing all the variables, but some of the optical problems in the images may have been alleviated by using a bigger dome? I think the key advantage is lighting with a small dome, rather than the physical distance of the subject in front of it. Intermediate sized domes like 140mm or 6" do not offer this advantage, so I really wanted to limit this discussion to 100-125mm sized domes only. I also understand the cost, weight and travel advantages of small domes. However, the weight difference is not relevant in the water, and the cost/travel advantages are "relatively" small compared to the overall costs of equipment and travel. This is, of course, subjective!
  4. I'm sure others will chime in, but does the housing have sufficient internal space to fit an HDMI plug and cable? Will an HDMI plug fit through the port you show? If not you will have to break the cable somehow...which makes the operation more difficult! Certainly glue and sealant may provide an adequate seal, but I would be wary given that cables can get snagged and disturb any seal. Ideally you want a proper cable gland to ensure a seal, but you may not be able to fit one in the port. If you can resolve these issues, running an external surface monitor via HDMI is not a problem. Adam Admin: Moved to video forum...
  5. I think it is important to compare apples and apples, rather than apples to oranges... Nikon 8-15mm is very much a fisheye lens and has a great deal of barrel distortion, as does the MWL-1. The Nikkor Z 20mm or 14-24 are rectilinear lenses. Practically, the 8-15mm can deal with a smaller dome, whereas the rectilinear will need much bigger ports and even then, may not offer very good optical performance. As far as I am aware, no one has done much testing with these lenses yet. My experience is that the MWL-1 is not optically as good as the 8-15mm. Not on you list (but should be) is the WACP-1 with either the Nikkor Z 35mm f1.8 S or Nikkor Z 24-70mm f/4 S. The latter offers superb optics, and a great zoom range from super wide reef scenes through to pelagic. Adam
  6. Hi all, I am really interested in finding out people's views about small dome ports. For the purpose of our discussion, let's define these as 4"-5" (100 to 125mm)? Do you use them? If so, with what camera/lens combinations? What are the advantages of the small dome over a larger one? Thank you! Adam
  7. I currently use Inon UCL-67, UCL-90, CMC and SMC on Seacam housings without any optical issues. I have also used SubSea, FIT, Scubacam, Moby and probably a few more that escape my memory currently! Flips are more challenging however, as they need a locating pin to stop them revolving in use. SAGA produce macro ports for most housings that have this feature. Personally, I don't like flips, so this isn't really an issue... As long as the housing/port/lens combination is correct, there is no problem using third-party wet macro close up lenses. Not an issue that should affect your decision on housing choice...
  8. @adamhanlon chats through some of the housekeeping steps needed to prepare your cameras and software to process images in 2021. He discusses how to update metadata templates, both on cameras and within editing/browsing applications, to make workflow easier and more streamlined. To ask specific queries about updating dates and metadata templates with specific cameras or software applications, please post your questions on the Wetpixel forums.
  9. Wishing the Wetpixel community the happiest of years for 2021. I think it is fair to say that most of us will not look back on 2020 with a great deal of fondness, but perhaps we should try to dwell on the positive parts of the year. I suspect that we are all looking forward to a return to some degree of normality in 2021. So, I hope that over the next year, I have the opportunity to dive and create imagery with as many of you as possible and to chat about issues of common interests and concern on the Wetpixel forums. May 2021 provide us with a "new start" and an opportunity to use our skills to capture the marvel and wonder of the world's oceans, seas, lakes, and rivers. I don't normally ask for favors when posting about celebrations, but may I humbly request that you take a moment to review UNESCO's Charter for Ocean Decade Champions in Image-making. 2021 to 2030 has been declared as the "Decade of Ocean Science for Sustainable Development," and if you plan to make New Year's resolutions, perhaps this is a good moment to ensure that our impact is a positive one?
  10. @adamhanlon and @Alex_Mustard discuss their underwater photography highlights from 2020. While the pandemic has curtailed travel plans significantly, it has also created new opportunities. They chat about the trips they did manage, the local diving opportunities that have presented themselves, the exciting new gear that has come to market, and how the pandemic lockdowns spawned Wetpixel Live.
  11. I have been diving long hose configurations for many years. One of the key parts of doing so successfully is that the long hose is ordinarily breathed from by the donor and is donated to the OOG diver. Simply put, for the the long hose set up to work, the donor needs to be aware of the OOG diver, and be responding before they can attempt to secure a gas supply for themselves. This level of situational awareness is as critical for using a long hose safely as the gear configuration itself. In order to allow the hose to stow around the light canister, the hose needs to be 7ft (2m) . The original application of this length was to allow OOG divers to be positioned in front of the donor in order to exit restricted passages, but it is also a very nice length when dealing with OOG divers in general. In terms of deployment, the focus in dealing with an OOG diver must be to supply them with gas as swiftly as possible. Once they have gas, the second step is for the donor to switch to their back up regulator. It is important to stress that this needs to be bungeed in tight under the donors chin. The holder shown in the picture above allows the back up to move about, and can delay access to it. Once both divers have gas, then the donor will deploy the rest of the long hose. It is important to stress that (with some training and practice), this can/must be accomplished with one hand. In a cave environment, one hand is normally used to reference the guideline to ensure a safe exit, but we can apply this to keeping hold of our cameras while we sort out an OOG situation. I did a GUE Fundamentals class 20 years ago, and despite being a PADI Course Director, a trimix/tech instructor and a qualified rebreather diver at the time I took it, still rate it as the single best diver training experience I have ever had. It is definitely not based around certification, but will put your diving skills and abilities under a microscope. This can be hard on the ego, but is very good for your diving! I do not always dive in a DIR compliant way, but I use some of the skills and lessons that I learned on the course on every dive that I make!
  12. There is a lot of information on the physics of dome ports here on Wetpixel, but to stress, your corner issues are caused by trying to present a curved virtual image onto the flat plane of the sensor. I would have a search about dome port theory here on the forums It is not a focus point issue! They only way to cure it is to use a bigger dome, or shoot at a smaller aperture. With a cropped sensor, I use a 230mm Superdome with a 10-24mm and still find that I need to shoot it at f/8 or greater. There is also the possibility that the 10-18 just doesn't work well behind a dome. I have no personal experience with this lens, but some very competent wide angle lenses don't work well behind a dome. This is likely to be to do with close focusing not being a design objective for wide angle lens designers...
  13. Many underwater photographers are keen to publish their imagery in a book format. @Alex_Mustard and @adamhanlon discuss some of the image-making processes that are needed to do so, the practical and financial aspects of the publishing process, and how to choose a theme for publication.
  14. I think the image softness is an aperture/dome port related issue, rather than a lens one. Shooting at f/3.2 will produce soft corners. I am happy shooting underwater at much slower shutter speeds than others have suggested. The crucial ingredient is getting your camera set up completely neutrally buoyant. I regularly shoot at 1/10, and on occasion slower. But, this does require a super stable platform that may be difficult to achieve while snorkelling. As others have suggested, I would aim to keep aperture at f/5.6 or, even better, f/8. Use the combination of slower shutter speeds (when possible) and ISO to get your exposure.
  15. Last-minute Christmas gift idea! Wetpixel Live will always be available to view for free on YouTube, but we are also offering the opportunity to purchase the episodes for download. There are now 100 episodes available for purchase, and they cover a vast number of subject relevant to all underwater image makers. The downloads are deliberately kept small in size in order to make them portable for use when the internet is limited (airplanes and liveaboards) or on mobile devices. Purchasing episodes also helps provide us with the motivation to create more! https://wetpixel.com/buy-wetpixel-live-episodes
  16. Wishing the Wetpixel community the very happiest of holidays in 2020. It has been a strange year on so many levels. Perhaps Charles Dickens sums it up best: “It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of light, it was the season of darkness, it was the spring of hope, it was the winter of despair.” I wish everyone a very festive celebration and hope that you manage to gather as best as possible, even if this is in a virtual way. Let it be an opportunity to reach out to others in our communities and to attempt to share some light. Take care, and stay safe. @Alex_Mustard and I have done a Wetpixel Live episode that rounds up the year and discuss plans for 2021. Take care and have a wonderful celebration! Adam
  17. The owner of Keldan Lights, Daniel Keller shows off his latest gadget to @adamhanlon on Wetpixel Live. Using ultrasound, the RC1 can control multiple lights remotely even if they are not within the "line of sight."
  18. Thank you for reporting this. User "mallyQow" using the email address walkermathew05@gmail.com is a scammer. Please do not attempt to complete any transactions with him/her. He/she is banned (22/12/20)
  19. Tiger Beach, off Grand Bahama, is one of the best places in the world to get reliable photographic encounters with tiger sharks (Galeocerdo cuvier) . Perhaps less well known is that the area also hosts large numbers of Caribbean reef and lemon sharks, along with nurse, hammerhead, and bull sharks. @adamhanlon and @Alex_Mustard chat about their experiences at "the beach" and share some insight on how to maximize the site's creative potential.
  20. I'm not sure where that comes from! WACP-2 is almost rectilinear, so is ideally suited for video use. The WACP-1 is optimized for lenses of around 28mm, while the WACP-2 is for 14mm. But I would say that the principle advantage of WACP-2 for video shooters is the lack of barrel distortion.
  21. Another scammer reported by an eagle-eyed member... lesspendergrass01 has been using the email lesspendergrass01@gmail.com. Banned 19/12/20 Adam
  22. Hi all, An eagle-eyed member of our community has identified some strange behavior. lesspendergrass01 has been using the email lesspendergrass01@gmail.com and has been replying to "Wanted to Buy" posts via PM. In each case, he/she has been claiming that he/she knows a third party that has the required items. He was seeking a PayPal payment to songregg3@gmail.com, and has given a fictitious address. It is important to note that he/she: 1. Had never completed their registration as a Wetpixel Member 2. Was offering goods from a third party 3. Had never made any posts or interacted on the Wetpixel forums. Please be careful folks...if someone offers you goods via PM, check them out on the forum and (I would suggest) do not part with any money until you are 100% sure that they (a) have the goods and (b) are who they say they are! Please feel very free to reach out via PM if you are unsure. Adam
  23. Once the most common type of imagery captured by underwater photographers, pictures of scuba divers underwater are now somewhat rarer. @Alex_Mustard and @adamhanlon discuss why this is the case and provide some pointers about creating memorable images featuring divers.
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