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jonjake

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Everything posted by jonjake

  1. Looking for either Nauticam N120 60 or 90 Extension Ring. Send me a message if you have one you are willing to sell.
  2. I have 1 remaining space on a small group photo trip to La Paz, Mexico in November 19 - 24, 2019. I have a private panga (limited to 4 divers) reserved for 3 days (November 20, 21, & 22) of diving and we will do 1 day of whale shark snorkeling (November 22). Fall is the best time of year for photographing the sea lions at the famous Los Islotes Sea Lion Colony so we will plan to do that for a majority of the dives. Los Islotes (and other dive sites) also have great macro subjects including blennies, jawfish, and nudibranchs. Since I have reserved a private panga we have flexibility to go where the group wants to go. La Paz is somewhat difficult to fly to from outside of Mexico but others coming on this trip are flying to/from Cabo San Lucas so that is an option. Here is a blog I wrote after a trip I took to La Paz last December: https://www.jonandersonphoto.com/Blog/La-Paz Here are some examples of subject we might see: https://www.jonandersonphoto.com/LA-PAZ Send me a message if you are interested in the trip details and cost. Thanks, Jon Anderson
  3. Is this extension ring still available?
  4. Hi Joss, Interesting that you noticed that! I designed and fabricated the computer holder myself. Send me a DM if you want to discuss more. - Jon
  5. Finally got around to building a USB charger for my upcoming trip! Thanks for the idea and great documentation Interceptor121! Here is a picture of mine: https://www.jonandersonphoto.com/Misc/i-J57SRsF/A I used corrugated plastic for the base and dual lock velcro to hold everything to it. It charges 2 Nikon batteries (same model charger is available for all major cameras), 8 AA strobe batteries, 2 18650 batteries, my Shearwater Teric, and still has 1 USB port left. The whole thing weighs 650 grams (without batteries, Shearwater dock, and computer). Not sure if this is substantially lighter than my old chargers charger/powerstrip/etc but it is definitely much neater and more compact which will be especially nice for liveaboards trips with limited space and outlets for charging. Happy to share more specifics if anyone wants them. Excited to try this on my upcoming Sea of Cortez liveaboard trip in about a week!
  6. Interesting. I have a Nauticam D-850 housing with the built-in optical trigger that uses two CR2450s. I will have to look around for some extra CR2450 batteries. In the meantime I just did a the following test with my strobes mounted to the housing and facing a white wall (diffusers removed). 1) Fully charged all my AA batteries and installed them in the strobes. 2) Verified that all the settings on the strobes match and set them both to the same power (Manual -6EV) 3) Turned off the right strobe and took an image of the wall with only the left strobe (suspect strobe) firing. 4) Turned off the left strobe, turned on the right strobe and took another image with only the right strobe firing. 5) Turned the left strobe back on and took an image with both strobes firing. 6) Swapped the fibers going into the strobes to test each strobe with the opposite trigger/fiber. Repeated steps 3-5. 7) Adjusted the power on the left strobe up 2 clicks (now on Manual -5EV setting) to visually match the right strobe. Repeated steps 3-5. The images taken during these tests can be viewed here: https://www.dropbox.com/sh/raa17deyd0tryfb/AAB3sLL8hrlqL5BAdhjrdSUKa?dl=0 From these tests it seems the suspect strobe is firing approximately at approximately 1EV lower power (2 clicks) than the other one. After swapping triggers/fibers without any noticeable difference I still believe the issue is with the strobe itself rather than the triggers or fibers. I will try to reach out to Pavel Kolpakov to see if he has any theories.
  7. Thanks Interceptor121 & makar0n for the tips. My AA batteries are on the charger now and I will run some experiments tomorrow to see if I can resolve it. I only use the strobes in manual power model with fiber optic triggering so I am not sure why the trigger batteries would effect the strobe power output but I will try new ones just to see. I still am interested in picking up a "spare" if anyone has one available.
  8. Looking for a single Inon Z-240 Type 4 that is in good condition. Send me a PM if you have one you're willing to part with for a price that is fair. I recently noticed that one of mine has a much lower output than the other while shooting a large ball of Jacks. Initially I though one of the two flash tubes might be dead but later I confirmed that is not the case by taking photos of the strobe in set to a low power with my lens stopped all the way down. Not sure what is going on with it because it still works fine but the output is significantly lower than my other Inon Z-240, I am fairly sure this wasn't previously the case as I never noticed it.
  9. I know this lens just came out but I was curious if anyone has tried one in the water yet or plans to soon. It seems like it could potentially be a cost effective alternative to the popular Nikon 16-35mm f/4. The Nikon minimum focus distance is 0.29m, the Tamron website says this lenses minimum focus distance is 0.28m. Has anyone figured out how much extension ring would be needed on a Nauticam housing with this lens yet? I might try to rent one soon if Borrow Lenses or Lens Rentals gets one in their fleet.
  10. Canon G7X + Nauticam NA-G7X Housing + Accessories I am a little sad to part with this camera as I have made many great images (a majority of the shots on https://uw.jonjake.com/) with it but I just upgraded to a DSLR and it no longer gets used. I hope it can find a new owner who loves it as much as I have the last 2 years! This camera/housing has been in the water quite a few times but it still works great and takes great images. The ports have some very minor scratches and staining but I have never noticed either in any images. The window for viewing the camera LCD has some scratches on it, Backscatter is quoting a replacement right now and I would happily split the cost of the replacement with the buyer if they want it. Here is what is included: Canon G7X Camera 2x Extra Canon NB-13L Batteries (3 batteries total) Nauticam NA-G7X Housing (including N50 standard port, spare o-rings, flash plugs, grease) Nauticam M14 Vacuum Valve (and pump) Nauticam Flexitray II (Left Handle + Right Handle + Tray + Remote Shutter Release) 2x Naticam Strobe Ball for Flexitray Nauticam N50 Short Port I have all the original boxes and will include those if you want them. $1300 USD + Shipping (or local pickup). Payment via PayPal. Everything was ~$2500 new less than 2 years ago. Please let me know if you have questions or want to see additional pictures.
  11. Why is there no viewfinder on the housing in the picture above? Does this setup include a viewfinder for the housing?
  12. I will be going to Belize for a week in January and staying in San Pedro on Ambergris Caye. I dove in Belize many years ago before I was into underwater photography but don't remember who that was with. Does anyone have recommended dive operators in this area? Here is what I am most interested in: - Turneffe Atoll - Shark Ray Alley - Mangroves (if people anyone will do it, I know they have had some crocodile problems) - Lighthouse Reef/Blue Hole (Is this worth doing?) - Local dive sites near San Pedro. I am mostly interested in shooting wide angle but would also do 1 or 2 days of macro. Any suggestions are greatly appreciated! Best Regards, Jon Anderson uw.jonjake.com
  13. I am looking for a snoot for an Inon Z-240. Would potentially be interested in either a Retra LSD or 10Bar.
  14. I bought a new Z-240 strobe from garyyoss a few months ago after they were discontinued by Inon. Everything was exactly as he described and he was also very friendly to work with. We now share dive photos and stories occasionally. I would definitely buy from garyyoss again in the future.
  15. Got one, no longer looking.
  16. Moses, Thanks for the tip. I might try this when have some time. I am curious why you decided to fill the gap with water rather than just leaving air in there and sealing it? The Dyron SWAL13 looks suspicious similar to Opteka lens you linked to above but costs approximately 4 times as much. I will let you know how this goes if I end up doing it! Nice video by the way! Thanks, Jon
  17. Proceed with caution if your are looking at the Dyron SWAL13 Wet Wide Angle Lens! I really hate to make a post like this here but I dont want anyone else to end up in this same situation. I bought one about a year ago very excited about it after reading several reviews online. I have taken some decent pictures with it, as my eye became more trained and I shot with it more, I started noticing that its focus was pretty soft relative to other wet lens I have used (Nauticam WWL-1 & CMC-1) I posted about that here: http://wetpixel.com/forums/index.php?showtopic=59530 Bad went to worse. I dove with this lens in Monterey this last April and noticed that there was large dot of condensation that formed between two of the elements when exposed to the cold water. Autofocus really doesn't like trying to focus through a cloud. Below is a picture of a crab under the large dot of condensation from April when I first noticed the problem. You would assume that wet lens should be well sealed to prevent moisture from getting between the elements. I don't know if mine has a defect or they are just not well made but its really disappointing. Dyron advertises a 2 year warranty on their website, I have tried to contact them several times with various email address and have gotten no responses. I have also tried to see if several US vendors have a way of getting ahold of them and they have had no luck. Before making this post I decided to do a test to confirm this condensation problem. I put the lens in a bowl of ice water, within a minute or so the dot of condensation clearly started forming in the center between the 2 elements. I am now stuck with a big useless piece of fairly expensive glass that I cannot sell.
  18. Looking for 1 Inon Z-240 Type 4 in good condition. DM me if you have one you are looking to sell. Jon
  19. I may accept offers lower than $300. Send me a PM if you want to make an offer.
  20. I have a Inon D-2000 Type 2 in very good condition for sale. I wasn't going to part with it because I took many of my favorite macro shots with it but I figured its time for it to get use from someone else as it has just been sitting in my gear bag for a few months now (I have a pair of Z-240s now). The strobe has never had any floods or leaks and the contacts look great (see pictures). It includes the -0.5 stop diffuser (has minor crack) & focus light diffusers. I am NOT including ball mount adapter or fiber cable. I am looking for $300 USD, buyer pays shipping.
  21. I have a Dyron SWAL13 that I have been using with my Canon G7X in a Nauticam NA-G7X housing with the N50 short port. The relative price, wide FOV, and Blue Water Photo test results (http://www.bluewaterphotostore.com/canon-g7x-underwater-lens-tests) are what led me to the SWAL13. Thus far I have found that getting photos with razor sharp focus with this lens/camera combination is nearly impossible. The very wide field of view is great for composing big shots but many of them end up having soft focus and are barely usable. Any ideas why this might be the case? I have not had the same type of focus problem when shooting with my CMC-1 macro lens or no wet accessory lens. Here are a few example photos that I feel show this problem: https://jonjake.smugmug.com/El-Nido-2016/i-6VmGkHQ/A ( f/8, 1/40s, ISO 125) https://jonjake.smugmug.com/Cozumel-2016/i-6KVw3K4/A (f/8, 1/80s, ISO 200) https://jonjake.smugmug.com/Central-California/i-r4shgL5/A (f/8, 1/60s, ISO 200) I have read some recommendations that suggest locking focus on your fin at the beginning of a dive when shooting wide angle and others that say to put your camera in Macro mode when shooting with a wet wide angle lens. Any suggestions or tips that I can try would be greatly appreciated!
  22. I post my UW pictures to Instagram regularly (@scubajonjake). I find it to be a great venue for all my non-diver friends to better understand and appreciate why I go diving in cold California water so often. I have also found it to be a great place to see what other local UW photographers are seeing/doing.
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