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TomekP

Member Since 13 Jan 2014
Offline Last Active Feb 21 2015 01:36 AM
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Posts I've Made

In Topic: Dry Suits - How to?

21 February 2015 - 01:39 AM

There are many ways how to control buoyancy in dry suit. It depends from the type of dry suit, volume and type of thermal protection layer. I saw that discussions many times. In my opinion there is no sense to discuss this via internet. How to swim in dry suit You can learn only in the water, with experienced colleague or instructor. And the end it is easy, but if You learn to make mistakes at the beginning, then it can go wrong. The is one main thing which can happen wrong: You will fly very fast to the surface with Your legs on the top and head still underwater, without possibility to roll and release the air. 


In Topic: For sale Sony Nex5n in Acquapazza Housing, 3x lenses, ports, gears etc.

20 February 2015 - 12:18 AM

Hello Michael

 

I just checked that company which I am using typically they do not offer shipping to Your country. 

Do You have any family in Europe?  


In Topic: NEX Macro Option?

20 February 2015 - 12:15 AM

Mark, did  You try  (and if not yet, then maybe You can :) ) combination of Kenko tubes and wet lenses with the 50mm lens?


In Topic: NEX Macro Option?

18 February 2015 - 01:23 PM

There is picture taken with 30mm, short working distance.

 

sony_macro-1.jpg

 

This one is taken with 50mm + 2x Inon UCL330

sony_macro1-1.jpg


In Topic: NEX Macro Option?

18 February 2015 - 10:17 AM

I have 30mm macro lens and I would say it is not the best one for macro, because very short focusing distance. For corals or stones it is ok, but for living creatures not so nice,

 

My colleagues get nice results with 50mm lens and additional wet macro lenses. The same 1:1 factor is possible to get at longer distance.

 

I just saw that the extension tubes will increase the focusing distance and some Nex users are satisfied with this solution.

https://www.youtube....h?v=umz91Bit6Ho

so I am just interested if this will work underwater, and maybe the combination of extension tubes and wet lenses will offer the magnification like 2:1

 

I know that Canon 100mm f2,8L macro lens with metabones can be better solution, but I am trying to work with what I have, without increasing the price of my setup by factor 2x  :)