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Kogia

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Everything posted by Kogia

  1. An update on my experience with the Canon 8-15mm & Metabones IV on the Sony a7r2 and a7r3: After a year or more of use, it started developing an occasional issue where the camera would lose communication with the lens. This is manifested by the display showing no aperture for the lens and shutter release disabled. It can be quickly corrected by twisting the lens & adaptor off the camera body and back on -- but this requires removing the camera from the housing. And of course, it's horrible when a really good subject passes in front of you and you can't take a picture with the camera that was working fine a few minutes ago. I've tried multiple methods of cleaning the little gold contacts, but the problem re-emerges. Now I always do a few twists (also twisting the lens off the Metabones & back on) before putting the camera in the housing & it usually works okay for the duration of the dive, but not always for the whole day. With my dedicated Sony lenses, I have never had this issue. btw I have both the Sony wide-angle and the fisheye converters for the Sony 28mm lens. The results with the wide-angle converter are superb, but I am not satisfied with the fisheye converter optics, so I continue using the Canon 8-15mm with MIV, and hope it won't freeze up on me. Meanwhile waiting for a dedicated Sony fisheye which should be less bulky, as well as averting camera-lens connection problems. btw - I normally shoot on shutter priority. I doubt any other exposure mode would change the dynamic, but I haven't experimented to be certain.
  2. Subal GS-180 viewfinder gives a magnified view of the camera viewfinder without distracting changes in angle of view. Optics are superb. Seals with two o-rings for security. This used item looks pretty ratty cosmetically, but the glass is in good shape and optics are equal in use to brand new. The flimsy rubber eyecup supplied by Subal tore, so I repaired and reinforced it with thin strips of rubber. Looks like junk with the added strips and yellowish glue, but it is actually stronger than the original cup and does not collapse when you press it to your mask, as it did when new. GS-180 is currently advertised in USA for $1995 new. I am asking less than one quarter of that for this used one that does the same job as a new one: $495 (plus shipping from Hawaii, USA).
  3. I can't use the current version of Adobe dng converter for Mac because it's not compatible with my "mature" operating system. However I think that one released last year (v. 10.3) is likely compatible with my OS, and will support my camera. But I can't find anyplace on Adobe's site or elsewhere to download any version other than the latest one. Anybody know where older versions might be found?
  4. Both camera and housing have been sold. Please end topic.
  5. Housing price drop to $1465 plus shipping. Camera body is back on auction on eBay at https://www.ebay.com/itm/173724030927?ul_noapp=true
  6. Housing has been put up for auction on eBay: https://www.ebay.com/itm/173713751790
  7. Price drop on housing to $1095 (plus shipping). Camera has been sold.
  8. I'm dropping the price on the housing to $1500 (plus shipping). Also the camera is temporarily available for $800. (eBay buyer changed his mind while it was in transit, so it's being returned to me -- if no one speaks for it on this forum it will go back on eBay next week)
  9. I used to use the Tokina 10-17mm with a 1.4x TC on my Nikon D700 and thought it gave me good results while allowing me to use that favorite lens. Then two things happened: I upgraded to the much higher resolution Nikon D800, and I upgraded my computer to a Mac with Retina display. Then I could see I was really trashing my image quality with that teleconverter. Also, with a better monitor you can see how much color fringing the Tokina 10-17mm lens produces. Now I would much prefer to shoot with a good wide or fisheye lens, such as the Sigma 15mm, and crop in post if it is too wide. We are still waiting for a lens for full-frame that gives an equivalent to the 10-17mm, but without needing a TC. Of course it depends on how picky you are about image quality. If you will only use your pictures small online, it really doesn't matter what the TC does to the pixels.
  10. Camera body has been put up for auction on eBay at https://www.ebay.com/itm/173690140801?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 Housing is still available for purchase here.
  11. D800E body has been placed on eBay: https://www.ebay.com/itm/173688736936?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 Housing is still available through this forum.
  12. Nauticam NA-A7 underwater housing for Sony a7r, in very good condition, some minor scuffs on bottom, and some scratches on rear window over LCD screen (do not interfere with viewing of LCD): $1300 includes N100 to N120 40mm port adapter with zoom/ focus knob housing has one optical bulkhead, one Nikonos style bulkhead with two wire hotshoe for manual flash, and one 5-pin Ikelite bulkhead with connector that can be mated to camera for remote (polecam, not included) control of camera Sony a7r = alpha 7R = ILCE-7R, 36MP mirrorless digital camera, in excellent condition, shutter count 3,215: $800 or camera body and housing together for $1999 No ports or lenses included. Only the camera body and housing + adapter, with original accessories that came with them. Camera comes in original box with all contents (battery, charger, strap, etc.) Location is Hawaii, U.S.A. buyer pays shipping and shipping insurance
  13. Nauticam NA-D800 housing for Nikon D800 and D800E cameras, in good working condition. Some scuffs on bottom. Very minor scuffs on top. Rubberized coating on handles starting to peel (looks ugly, but no effect on functionality). Center threaded hole on bottom has been re-tapped to 1/4-20 threads (to match other two holes); one Nikonos style bulkhead with hotshoe plus two optical bulkheads; two one-inch balls on handles included: $1750 Nikon D800E 36MP DSLR camera body, in excellent condition, shutter count 11,740: $950 or camera body and housing together for $2600 No ports or lenses included. Only the camera body and housing with original accessories that came with them. Camera comes in original box with all contents (battery, charger, strap, etc.) Location is Hawaii, U.S.A. buyer pays shipping and shipping insurance
  14. Selling my Nauticam underwater housing for Nikon D500. Less than a year old. Used on 15 dives only. (Upgrading to D850). Excellent condition with a few cosmetic scuffs. Asking U.S. $2250 (new price $3500). Optional extras: Nikonos 5-pin bulkhead $80; TTL converter circuit for Ikelite and Inon $390; vacuum valve $209. D500 camera body for sale to buyer of housing. One year old, 3290 shutter activations. $1200. Shipping from Hawaii, U.S.A. not included.
  15. I was finally paid. Seven months late, but that's a lot better than never.
  16. I'm sad to report that Unterwasser - one of the few remaining print magazines to continue publishing underwater images in high quality and to pay their contributors - has now joined the ranks of delinquents. Despite monthly reminders, I have not been paid for an article with photos that appeared in the April issue, which would have been printed in March. The editors seem to be sympathetic, but can get no action from the publisher, whose official excuse is that the accountant has been sick for months, and the only assistant accountant only comes in two days a week. And yet, somehow, the water and electricity have not been turned off, the landlords have not evicted them from their office space, and the employees continue to come to work. It is only the creators - the individuals who produce the content - who are considered expendable. The executives in their corporate suites probably feel that the editors should be able to source plenty of material from hobbyists who are happy to give it away for free in order to see their names in print. Most likely they are correct. However, don't expect that if you are promised to be paid for your work there that you will actually be paid.
  17. Ryan - It would also be very helpful if you could specify the maximum lens diameter that can be effectively used within the WACP, perhaps using front filter thread size as a proxy, since this is more widely reported on lenses than the actual diameter. The excellent review by Alex and Jason failed to specify if they were using the Nikon 28-70mm f2.8, which has a 77mm filter thread, same as one of Nikon's current 24-70mm f2.8 lenses) or the Nikon 28-70mm f3.5-4.5, which has a filter thread of only 52mm. Some more clarity with regards to the exact limit on the size of lens that could be used would go a long way toward helping us envision the range of lenses that could potentially be used. Thanks. Very excited about the potential of this new tool, and grateful for the R&D effort that Nauticam has put into this.
  18. Ryan - The chart to which you linked in your Sep. 30 message is dated June. Have you tested more lenses since then? Can you post an updated chart? I understand that you are only testing lenses from 28mm because wider lenses will vignette with the WACP. However, as previously noted, Nikon has discontinued its 28-70mm lenses and replaced them with 24-70mm lenses which offer significant optical and other improvements. A more modern lens would be an advantage for use outside the housing. The fact that it would vignette at its widest setting would pose no obstacle to using it behind the WACP within the 28-70mm range (or even using it wider in situations where losing the corners would not be a problem). Could we have some tests with a lens that is actually currently available? Would also love to see a test of the Sony 28mm f2.8 on a Sony FF behind the WACP. Mahalo.
  19. Dates have been changed to Sept. 13-22, 2017. Only 5 spots left!
  20. Professional marine life photographer and naturalist Doug Perrine will be the guide / naturalist / photo pro for an expedition to swim with humpback whales in the Kingdom of Tonga, September 11-20, 2017. This is the breeding season for southern hemisphere humpbacks, and we can expect encounters with mothers and calves. Full trip details can be found at: http://www.oceanicsociety.org/expeditions/tonga-snorkeling-with-humpback-whales--72 All whale encounters will be conducted under permit and within Tongan law. Doug will share insights on the lives of whales gained over many years of assisting with whale research in Hawaii, and photographing whales around the world. He will also be available for personal photo help. Doug's photography has been published in magazines worldwide, including National Geographic, BBC Wildlife, Time, and hundreds of others. He is the author of seven books about marine life.
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