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Gudge

Team Wetpixel
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Gudge last won the day on June 19

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About Gudge

  • Rank
    Tiger Shark
  • Birthday 12/24/1954

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  • Website URL
    http://www.gudgeon.id.au
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Profile Information

  • Gender
    Male
  • Location
    Baldivis, WA Australia

Additional Info

  • Show Country Flag:
    Australia
  • Camera Model & Brand
    Sony A7RIV
  • Camera Housing
    Nauticam NA-A7RIV
  • Strobe/Lighting Model & Brand
    2 x Retra Flash
  • Accessories
    Retra LSD

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  1. I've used a Zen 4" mini dome for many years with the Tokina 10-17 and Canon 8-15 on a variety of Canon crop sensor cameras and have always been more than happy with the results. Earlier this year I got a Sony A7RIV and have been using it with the Canon 8-15 behind both an 8" Subal dome port and the Zen 4" mini dome. I'm more than happy with the results with the 8" dome. However, the 4" dome is not producing good results due to soft edges (something that never happened with the crop sensor Canons). I have just ordered a Nauticam 140mm dome port with removable shade to replace the Zen 4" dome.
  2. There are actually two, 18810 and 18811. Basically the same port but 18811 has a removable shade and is more expensive. If your port had been the 18811 version I would have grabbed it.
  3. I believe this comment may be based on my comments on the A7RIV's sync speed in this thread: I've just been playing around with my wife's and my strobes and now the A7RIV is syncing perfectly at 1/250 as I have reported in my latest comment in that thread. I have no idea why, I haven't changed any settings. It was only missing syncing at 1/250 when I first got it with a very small black band I could easily frame/crop around (easy to do when you've got 61MP to play with). This small band has now disappeared when I use the strobes at 1/250 shutter speed. Maybe the shutter has loosened up little with a bit of use and reacts fast enough now to sync at 1/250.
  4. Strange thing has happened! I was just testing my camera with my wife's strobes (Inon S2000) and it synced perfectly at 1/250. I then went and tested it with one of my Retra flashes (old original model) and now it syncs perfectly at 1/250. I think I'll have to take back my comments about the A7RIV's sync speed back.
  5. Not something I've thought about, but noting that I don't recall having issues with the EVF but can recall a couple of times that I have been blinded by the sun while using an optical viewfinder for such shots, I'd say no. I'd like to add that after using film and digital SLRs underwater for 36 years I was one of those guys who would never use an EVF because they couldn't match an optical viewfinder. My main concern was that they weren't good enough to "lock and rock" for macro shooting. The A7RIV's EVF proved me wrong, it performs very nicely for "locking and rocking" specially when used with the focus peaking display while focusing manually (see comment below). Another advantage of the A7RIV when using Sony E mount lenses is that you can switch the lens to manual focus mode via the camera (vs using the switch on the lens) and have focus peaking display in the EVF while focusing manually. This is not possible with my Canon lenses on the Metabones adapter.
  6. I went back and checked my view of the EVF again over a couple of dives and can confirm that I can see all of the viewfinder. I have a very low volume mask that allows me to get my eye close to the 45° viewfinder eyepiece. Maybe, your mask prevents you from getting your eye close enough to the viewfinder eyepiece to see all the view in the viewfinder.
  7. After shooting Canon dSLRs for many years I switched to a Sony A7RIV earlier this year and am very happy with the switch. All my Canon EF and EF-S lenses as well as other brands using these mounts (Tokina and Sigma) work very well on the A7RIV plus metabones adapter with no autofocus issues. In fact, I would say that auto focus with my Canon 60 and 100 macros and Sigma 150 was better with the A7RIV than my old 7D MkII with the same lenses (AF-C with tracking flexible spot rocks for macro, none of my Canons had this). I now have a Sony 90 macro lens and it is better all around lens than the Canon mount macro lenses I have. I will be selling the Canon 60 and 100 macro lens and continue on with the Sony 90, Sigma 150 and Canon 8-15 fisheye. Above water I will continue to use my Canon 70-200 f4 as I am getting excellent results with this lens on the A7RIV with Metabones adapter. As to the reported issued with seeing all the viewfinder in a Nauticam housing using a 45° degree viewfinder I have had no problems at all. I would suggest that the problem is dependent on how close you can get your eye to the 45° viewfinder eyepiece. I have a very low volume mask, perhaps the person who reported the issue uses a higher volume mask and can't get their eye as close to the viewfinder eyepiece as I can. As to the EVF vs optical viewfinder, at first I thought it would be a problem but after a couple of dives I don't really notice the difference anymore. The ability to review a shot immediately after taking it in the viewfinder without having to take you eye away from the viewfinder and move the camera so you can review in the LCD on the back of the camera is a huge advantage.
  8. Have a look at the fine print in your instruction manual. I have a Sony A7RIV which has an advertised maximum sync speed of 1/250 but I experienced the same problem as you when shooting with it underwater. After a closer reading of the manual for my camera it turns out that the sync speed of 1/250 is only possible with dedicated Sony flashes or flashes that use Sony TTL (Godox TT685S TTL Flash for Sony in my case). Other flashes/strobes will only sync up to 1/200. I have no problems with my Godox flash at 1/250 but can only sync at 1/200 with other brand flashes on land and my Nauticam Flash Trigger underwater. Just found this DPReview, it seems that there are similar issues with using non-nikon strobes and the sync speed as I have described for my Sony: https://www.dpreview.com/forums/post/62076439
  9. Definitely the old Heinrichs Weikamp logo:
  10. Nikonos III, 35mm lens and single Oceanic 2001 strobe
  11. I've been using the Canon 8-15 with Metabones adapter on my A7RIV for a few months with Zen 4" mini dome. I can see no difference in the results from when I used the same lens/dome combination on a Canon 5DMkIII previously. Just use what extension/dome port combination recommended by Nauticam or others* on front of the 100-120 adapter and it should all work nicely. * I'm actually using a Zen Subal Type 3 mount mini dome with Subal 20mm extension ring as recommended by Zen with a Nauticam/Subal converter. I also use a Subal 8" Type 3 dome with Subal 20mm extension ring as recommended by Subal with the Natuicam/Subal converter.
  12. Here's a few articles that may help you make a decision : https://www.bluewaterphotostore.com/best-compact-underwater-cameras https://www.bluewaterphotostore.com/best-mirrorless-cameras https://www.backscatter.com/reviews/post/Backscatter-Best-Underwater-Compact-Cameras
  13. I'd just like to confirm that my Metabones Canon EF To Sony E-Mount Mark V Lens Adapter has no glass elements in it. It is simply a spacer with a bunch of electronics that allow my EF mount lenses to talk to a Sony camera. I'd have to use a similar Canon manufactured spacer to use my EF mount lenses with the new Canon R mirrorless cameras. Other EF and EF-S lenses I have used on my Sony A7RIV with the Metabones adapter without any issues are Canon EF-S 60 macro, Canon EF 100 f2.8 USM macro, Canon 70-200 f4, Sigma 150 macro, Sigma 17-70 macro and Tokina 12-24.
  14. I stopped entering UW photo competitions a few years ago and have concentrated on nature photography competitions or nature sections of general photography competitions. These include: Australian Geographic Nature Photographer of Year (Used to called ANZANG as mentioned by Chris Ross above) Australian Photography Awards Wildlife Photographer of the Year Panasonic Photographer of the Year
  15. I think the problem maybe with the camera's viewfinder magnification. I have used my 45° viewfinder with three different cameras in Nauticam housings, Canon 7Dm MkII, Canon 5D MkIII and Sony A7RIV. There was no problem with seeing the full viewfinder with the two Canons which have viewfinder magnifications of 0.63 ( 7Dm MkII) and 0.71X (5D MkIII) but with the A7RIV which has a viewfinder magnification 0.78X and is therefore much bigger than either of the Canons, I can't quite see all the viewfinder. There is a limit on how big the field of view is on 45°, the bigger viewfinder on the camera becomes there is a point where it will no longer fit the field of view of the 45° viewfinder. Personally, I prefer having a large view of the viewfinder with a little bit missing in the corners than a full view of a much smaller viewfinder in the camera.
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