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Everything posted by Tom_Kline

  1. "We have been surprised by the demand for this finder. We expected D2H/X and EOS 1DS/MARK II customers to want the finder, but many D70 & 20D customers are ordering the finder as well." As one who has used an RS and who also has a D70 (but not UW!), I find it no surprise at all. I would think Nikon's ears would be burning with all the negative comments on the VF on the net TK
  2. Thanks Ryan, Sounds like there may be hope. My query was based on what was stated on the web page of the above link in the left-hand margin " iTTL-Converter A converter iTTL-SLRs." My interest is for macro and CUs of moving fish especially where the strobe is doing almost all of the lighting using a D2 (an iTTL SLR) in an Al housing. A system based upon using an integrated flash as in the D70 would be unacceptable for my purposes. I should also have included the F6, which I believe is also iTTL. Tom
  3. Hi Jean, Much colder where you are than here! Even in Fairbanks it was forecasted to be above freezing today. I think we are getting much of the precip that should have gone to Washington State, which is in a drought situation. Cheers! Tom
  4. Thanks Anthony, I gather then that it may not be true iTTL. The test would be that it would work with all four present iTTL cameras: D2H, D70, D2X, and D2Hs.
  5. Will these be useable with other iTTL compliant cameras, for example, the D2H and D2X?
  6. Hi Jean, We have plenty of liquid water now, but it is falling from the sky propelled by a pineapple express - massive low pressure systems moving north up the Pacific. A colleague noted a gust to 90 mph today as the weather station readout is in his office. We are having a 'warm' winter. The short days are presently at at an end. Cheers! Tom
  7. In the 'gold old days' of film one could use a Nikonos with a framer. One could 'walk' the camera around the quadrat shooting 2 vertical and 2 horizontal format (4 shots in the quadrat total). Everything was done manually. Advantage = consistency. Same area in each shot. Helps during the analysis. Digital equivalents??? Getting ID quality fish shots will vary by species. Video (i.e., low res) may OK for some while you may need to collect a sample for others.
  8. I am thinking of this lens for super vis conditions, semi- to mostly ambient light shooting so light would not be limiting (e. g., Molokini backwall, NOT here in Alaska!). Sounds like it could be OK. Since you were using the Canon CU lens, it would have to go on inside the housing. I can see using a diopter if you were using this lens on a dive and the situation arose where you would want to reduce WD, but it would have to be one an external one. BTW, nice worm shot! FL with 10" WD helped avoid spooking them?
  9. This is the first I have heard of anyone carrying their lead inside their drysuit. I actually tried out two sets of ankle weights when using a Viking - no that did give me lead foot! With no weigths the feet had excessive bouyancy - a lot depends on the suit! Tom
  10. James, What was your reason for using the diopter? Does not the lens alone goes to 1:1? How did you find AF? See Ryans post (#6) in this thread: http://wetpixel.com/forums/index.php?showtopic=7545 Tom
  11. I have been using (rubber and tri-laminate) shell type dry suits since the 1980’s and agree that each one, and the parts and accessories (zippers, seals, dry gloves, hood, boots), presented its own learning curve. However, I am of the school that keeps the air in the suit to the minimum, has the exhaust valve in the minimum pressure position (counterclockwise in the suits I have used), and uses a B.C. for buoyancy control. I now use the DUI weight harness with rather negative steel tanks but back in the 80’s I used Al tanks, which required 44# plus ankle weights for underwear needed for temps that are typically in the 40’s (F) with a standard weight belt. I am presently use 32# plus ankle weights when carrying a 2# negative camera rig. It takes a number of dives to get proficient in a dry suit. Tom
  12. Yup, if you want the full 180 degrees you will need a lens specifically designed for camera's sensing area. Therefore Canon needs to develop FE's for for both the 1.3 AND for the 1.6 crop factor cams if they want to keep everyone happy! Probably ain't going to happen. I understand the 15mm Canon FE works rather well with the FF sensor unlike their prime or zoom rectilinear WA lenses.
  13. Excellent points!!! Now we know why they are called fish eye lenses! They are also good for photographing fish eyes (and snouts), see my avatar. Tom
  14. I have had good luck to about 10 feet with ISO 100 with one SB104 or one SS200. Shooting moving fish with a 50 mm f/2.8 on an RS. I shot wide open. My tendency with the RS 50 lens has been either to shoot it wide open or closed down all the way according to whether I was doing macro or whole fish shots. The quality of the 50 is quite good at f/2.8 too, probably due to it being a water contact lens.
  15. Tom, Maybe we need to know actual focal lengths to the nearest 0.1 mm? The marked FL’s are generally a rounded value. 1 mm makes a bigger difference now with such short FL's in use for the newer smaller formats. Tom
  16. Hi Ryan, Too bad! Even with D2's!! The 70-200 with AFS is so quick, too bad we don't have this with a fast macro. I was hoping f/2.8 would do the trick. Maybe the problem is Sigma's implementation of AFS/USM??? Tom
  17. Roger on the filtering. Nevertheless if almost no red in ambient light is present, filtering will not help much. The concept of reducing the blue with a filter to keep from having to amplify the red later and so generate noise is a great concept but there must be depth limitations. Hard to find true black and white even on a killer whale, same thing in topside shooting.
  18. f10ab1b, Your subject (in your avatar), a killer whale has built-in white- and black point targets! Have you used them this way? Cheers! Tom
  19. This is a very interesting thread. I have printed color negatives of UW shots and by filtration attempted to correct for blue (after the fact as it were). It is possible to remove the excess blue but one ends up with is a near black and white photograph. I think there will be a point of diminishing returns as a function of depth at a given location. An interesting aside is that BBC does not use artificial lights when they shoot UW. They were here in Prince William Sound doing part of the Blue Planet series for the Discovery Channel. A lot of gear but no lights. The producer told me that lights were a no-no. Need to stay rather in shallow water - especially here.
  20. It would be great if the mass as well as any added displacement for each component (including internally-used rings - need mass even if displacement = 0!) for a given system was provided by the manufacturers. After adding the mass of the camera components (e.g., camera and lens), one could then calculate the net bouyancy. There are too many possible combinations to list them all.
  21. Seeing just outside the frame works rather well with a Leica M or when using an 80mm lens on a Nikonos III (and using the N3 VF)! The reduced image size as opposed to seeing it more magnified may be even more (than with Leicas) of an issue UW, however. Also one needs to use a wider angle lens than one intends to shoot with to 'Leica-ize' your D2X. If one is running out of CF space and is using a zoom but not at the shortest FL, one could zoom back and switch to crop mode to be able to take more shots on a particular dive - a photographic J-valve of sorts (I am dating myself) Tom
  22. The 18-70 D70 kit lens is inexpensive and lightweight. A number of great shots using this lens have been posted on this site. It seems rather versatile. Tom
  23. I have been thinking about this myself given the field report on the Seacam D100 housing on Steve Frink's site. Hopefully the attachment came through, which came from the German boat show. It shows the Subal D2 housing with the extended VF but from too a high an angle or too short a focal length - however, it looks like it will be OK. A straight-on or lower shot would have been more conclusive. Too bad they did not show one of the premium finders on the Seacam D2 housing at the same show as these are the only pix (see Alex's post at the start of this thread) that have been posted of the housing thus far. Tom
  24. Congratulations Alex! You may be the first person on the planet to take a D2X underwater. This is also a test of the new wetpixel interface! Cheers from Alaska! Tom
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