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JackConnick

Member Since 29 Dec 2001
Offline Last Active Yesterday, 08:05 PM
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Posts I've Made

In Topic: Socorro lens options

Yesterday, 10:09 AM

You can use the 10-17 + the TC and get a little more reach. I've found this to be a sharper solution than the Sigma 17-70 which is about the only other lens I like underwater. The 17-70 is fairly useful and has a good range including sort of a close-up mode. But I don't think it's got stellar sharpness.

 

I've shot all three of these solutions down there. Mid-range zooms tend to be slower lenses and don't shoot very well uw (poor corners, etc.). Socorros can be murky at times.

 

I think a larger dome does give other options, and you can shoot at more wide open apertures than in the mini-dome, so I would recommend looking into that. The 17-70 requires a large dome and a 50mm extension, so it tends to be a bit bulky for shooting in blue water. Shooting a 60 behind a dome is a decent sort of shark setup for more reach, fairly sharp and fast, no extension.

 

Here's a couple of examples shot there.

 

Sigma 17-70 D300:

 

4378617962_595a6bf2d1_z.jpg?zz=1

Manta 3/4 Overhead by Optical Ocean, on Flickr

 

4377855301_c18d3d49a9_z.jpg?zz=1

Manta Head shot by Optical Ocean, on Flickr

This was at 29mm, and could of been shot wider, but the Manta was moving quickly.

 

Tokina 10-17, 7" Dome, with D300 (same trip):

4378631646_63213d5ca6_z.jpg?zz=1

Manta Eye level by Optical Ocean, on Flickr

 

4279383017_01c6b33cfc_z.jpg?zz=1

Friendly Dolphin by Optical Ocean, on Flickr

 

Hope that helps!

 

Jack

 


In Topic: Sea & Sea MDX-D600 - problems

24 April 2014 - 06:47 AM

Sometimes wiping the camera and rubbe wheels off with rubbing alchol to remove oils from your hands can help things gain more "sticktion". But we did just see a similar problem with a D600 out of box. It is covered by warranty and I would send it in, along with the camera, to be adjusted/repaired. Your dealer should be able to help you.


In Topic: Port available for the Olympus 12-40?

24 April 2014 - 06:41 AM

Yes, Nauticam has the #36129 7" dome and a gear available now. Aquatica will have a solution using their new 7" dome as well.

 

My take on that lens is that it's not the closest focusing lens and even with a larger dome the corners may be a bit soft. However for video it may find some fans, and it is fast. I'm looking forward to Oly's new 7-14mm lens sometime this summer.

 

Jack


In Topic: Sigma 15mm fisheye focus problem

19 March 2014 - 08:36 PM

I think you need the extension if you're not getting focus. Even with it you'll have corner issues with that small a port. But for video it should be ok, especially if you stop down.

 

Jack


In Topic: Mini Dome vs Larger (8") dome

17 March 2014 - 11:21 AM

I would also take into consideration that I showed you shots taken with a full-frame camera vs. a crop sensor on the mini-dome. Not sure what you are shooting.