Jump to content


tkr

Member Since 03 Jan 2006
Offline Last Active Sep 04 2007 04:40 AM
-----

Posts I've Made

In Topic: Sigma 18-50 mm F2.8 EX DC Macro lens for Nexus/Anthis

14 August 2007 - 03:59 AM

I have been using the new 18-50 macro version quite a bit this year. I use it in a Sea & Sea housing with compact dome port and 40mm ring.
It appears to work well. I chose it over the 17-70 sigma, as it is a bit easier to house as the lens extention is not quite so large. I also thought it might work better optically. It is almost unusable behingd a flat port because of vignetting at wide angle settings.

I rate this lens highly for a mid range zoom and have been pleased with image quality. I can focus to within 1 cm of the front of the port. I can think of no other mid range zoom lens that can do this. This is really a lens for those that like the idea of a mid range zoom but are frustrated with poor close focus ability of Nikon and Canon alternatives. I bought it after a true macro lens and fisheye lens so I do not view it as a 'one lens fits all' bit of kit.

I came up with my own zoom gear built out of bits of plastic and rubber -i deas taken from the 'build your own focus gear' in the DIY forum. The zoom lock switch needs to be taken in to account.

Hope that helps

In Topic: tokina 10-17mm, which S&S dome port?

19 July 2007 - 02:46 AM

[quote name='Sea&Sea' date='Jul 19 2007, 12:21 AM' post='135398']
Scott-
The 10-17 Tokina lens is compatible with zoom gear #31114 and the Fisheye Dome Port #56401, the Optical Glass Dome port #SS-30104 and the SX Extension Ring #SS-50261 and should be with the Compact Dome port #56601 and the SX ring as well.


Are we saying all three of Sea & Sea ports would benefit from the addition of the SX ring for the Tokina 10-17 lens?

In Topic: Do different dome ports affect image quality?

18 July 2007 - 02:12 AM

I have the Sea & Sea compact dome and the larger fisheye dome. I have no experience of the glass dome but from other posts I gather this fits in the middle of these two size wise.
There are quite a lot of previous posts indicating the best image quality, especially corner sharpness, comes from the larger dome.
At the moment I really can't see any difference when using the 10.5mm in either of these ports. I'll keep looking though, to see if I can see any benefits in using the larger dome. I have to presume that the experience of others on this forum must count for something.

In Topic: tokina 10-17mm, which S&S dome port?

18 July 2007 - 01:57 AM

Sea & Sea do not appear to make a particularly small extention ring. The smallest is the SX ring which I believe is about 20mm.
If you have the compact dome I wonder if this would just be too big?

In Topic: Any opinions on Sea & Sea strobes for the Nikon D200?

12 July 2007 - 04:39 AM

I quite like my Sea & Sea 110's. They are small and compact and I prefer the shape over the Inons. They put out a smooth even light. They do seem rather slow to recycle on full power though.