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Member Since 20 Feb 2007
Offline Last Active Mar 15 2018 11:24 AM

Posts I've Made

In Topic: Can you use Nauticam silicone on Sea&Sea blue o-ring?

15 March 2018 - 10:56 AM

I approach it form the other end.  I just use Tribolube or Nauticam grease on everything.  But I don't like wasting all those other little tubes and jars of stuff so I sometimes carry those around and use them too.  I don't want o be trying to figure out which O rings fit what if I don't have to.  But your approach sounds logical.

In Topic: Can you use Nauticam silicone on Sea&Sea blue o-ring?

04 March 2018 - 10:54 AM

Does anyone know, by chance, what the Zen branded grease is?  I have a few containers of it and its appearance is such that I am fairly sure it is not Tribolube or Christo.  I am switching to just taking nauticam grease in their little tubes or taking Tribolube in a contact lens case with me instead of 3-4 different brands for strobes, housing, ports, focus lights, etc.  I doubt the Zen can fill that role, based on appearance, but maybe someone can tell me for sure.

In Topic: Looking to upgrade Oly 14-42 II kit lens used with EM5/Nauticam

22 February 2018 - 12:14 PM

It depends on your priorities.  The 12-40 is excellent and one of my favorite underwater lenses for reef scenes, fish portraits and semi-macro (close focus, good magnification, but not really a macro lens), but it is sort of an "in-between" lens, lacking the angle of either the 7-14 or 8-18 lenses or the macro abilities of the 60.  But, since you already have the 8mm and the 60, I think it would be a good choice, if you are willing to deal with the 170 or 180 dome.  I hear great things about the WWL and am going to try that out in a few weeks.  The advantage being that with the 14-42 it is supposedly a do-everything lens, except for macro, but you can pull it off the port and use a CMC to get macro, so if the claims are true, it can be a one-lens, one port solution.  It also is supposed to overcome the limitations of an ultrawide (weitwinkel) rectilinear lens underwater.  From what I have been told, if you want to do the WWL, you would want to consider either the 14-42 EZ or the Panasonic 14-42 over the Oly lens, due to port sizes and amount of extension when zooming.


I have the 12-50 and it is okay, but I have never been overly impressed with it.  12mm in a flat port just isn't wide enough.  I view it as a macro lens that can be zoomed out to get some portraits and reef scenes if necessary.  I suppose it would not be bad as a general purpose lens in a much smaller port than a dome.  I would rate the 12-40 as a better choice unless macro is really important or you need something more compact than a 170 or 180 dome.


Generally, there is some variability in lens quality.  It could be that your particular 14-42 is not as good as it should be.  It might be worth doing some testing on land to get an idea.  But, in general kit lenses are designed to meet a price point more than other lenses and are often not stellar.


I hope this helps some. 

In Topic: Wetpixel strobe review

22 February 2018 - 10:46 AM

If you are using the battery indicator to judge what is going on be careful as it could just be self discharge,  The capacity voltage curve of the NiMH type battery is very flat so difficult to judge% charge based on voltage, which I am assuming what is being used with the charge indicator.  The best way to judge would be to take two sets of known good eneloops or your battery of choice of about the same age.  Charge them up put one set in the flash, the other out, wait your week then recharge them both together and see if the set in the flash takes longer to recharge indicating more drain. 


I have no idea about this.  just asking.  If what you say above is true, then would that suggest the charge indicator lights are unreliable in general?

In Topic: Wetpixel strobe review

21 February 2018 - 01:40 PM

With the help of the review, I decided now to give the Inons a chance.....and wait for the colour diffusors to come, too. What I still haven't understood is, why the battery compartment needs an inner and outer cap....others have it in one piece....



It is the system Inon has used for years.  From a technical standpoint, the inner piece is not really a cap as much as it is the contacts for the batteries.  It isn't waterproof.  It appears that Inon has not changed the battery compartment at all.  I think they should have re-designed it so that a flooded compartment could not flood the strobe.  I think that is the one real weakness of these, although I have used Inon strobes for a long time with no problem and would not let it deter me from buying these.  I think the color diffusers may be out already.  Backscatter lists them on their site.