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balexandrescu

Member Since 28 Nov 2010
Offline Last Active Sep 15 2018 04:39 PM
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Posts I've Made

In Topic: High quality less expensive sync cords?

18 November 2017 - 06:51 AM

 

Have you tried making them? This was discussed a couple of years ago and might be worth a search. You can buy the various component parts and the fibre cable. I've not tried it but it sounded simple...... 

Hi TimG, 

Yeah, I've given that some thought but I learned from an engineer friend of mine who made his own and then went on a liveaboard trip to the Galapagos only to be struggling with inconsistent results the whole time. The trouble is that when you go somewhere for a week or two of diving, you value consistency. Were I to live in Florida let's say and dive whenever I wanted to I'd probably make my own and enjoy the challenge of perfecting them. But I'm hoping this is one less thing to worry about. 

Bogdan


In Topic: High quality less expensive sync cords?

18 November 2017 - 06:44 AM

I had not seen your question and have just posted the same question in the lights forum.  I haven't received any responses.  I did notice the Howshot cords are multi-strand. and that is usually desirable, but that is all I know.  I have always used the nauticam cables but wanted to pickup another backup cable and the savings are appealing if these work well.

Hi Draq, 

I just sent out an email query to UWdigitalcamera.com about their Inon branded fiberoptic cables. The description states that the cables are made in Japan and according to my conversion of Japanese Yen to the dollar they are comparable in price to the Howshot ones and the 10Bar ones. I'll let you know what they say as soon as I hear. 

Thus far I've usually shot manual, but I'm going to be trying out this new TTL system with my Olympus and the manufacturer recommended high quality multicore cables for the best results with TTL, so that's why I'm paying more attention to the specifics of these cables. 

Bogdan


In Topic: Shooting Experience - Oly 30mm vs. 60mm Macro Lenses

08 November 2017 - 04:29 PM

You need the shorter port otherwise the 30mm will focus inside the port glass at closest focus.  I'm thinking of a 30mm macro for similar reasons, I'd like to shoot weedy sea dragons and fish when on macro dives.  It's all about compromises, getting 1:1 subjects will be harder with 30mm as you need to be closer, but if you don't use the 1:1 magnification so much then it makes sense.   A zoom generally doesn't get you close enough for a lot of subjects like smaller nudis. 

 

I'm thinking I might try the panasonic 30mm macro, it's f2.8 rather than f3.5 and test reports show it's sharper.   Don't forget that the 60mm is equivalent to 120mm full frame, 60-90mm seems to the commonly used macro lens focal length for DSLR users.

Chris, do you know if any of these other shorter lenses work with wet lenses? Like the Inon wet lenses or the SubSee +5 or +10 Diopter? Because that could add a lot more functionality to these shorter macro options I would think. 
Bogdan


In Topic: Shooting Experience - Oly 30mm vs. 60mm Macro Lenses

08 November 2017 - 04:25 PM

Oh yes, a very very interesting question. I think very few people have both lenses in order to compare. We have an upcoming trip to Lembeh in December and can report afterwards, but I think the Olympus lens deal expires before then. But anyway, they have lots of deals so it'll come around again. 

I have shot the Olympus 60 and I do love it. I even love the Nauticam CMC with it, though it's difficult to use at first. 

The question is that on this upcoming trip my wife wants something other than the 60, as we can just borrow a friend's port and 60 mm lens for her. But we would pretty much have the same images that way and face the same limitations. 
So I also am thinking of getting the Olympus 30, Panasonic 30 or the Panasonic 45. The latter 2 are f2.8....now the interesting thing is that I think all of them fit in the Nauticam 45 port. 
I could buy the cheap Olympus 30 or rent the Panasonic 30 or 45 from LensRentals. They have a deal now where you can get 2 week rental for the price of 1, which is really nice if you were going to try something out. 

Incidentally, I have heard great things about the Panasonic 30 from someone I follow on Flickr. Here's a link to some of his images. 

https://www.flickr.c...0/in/datetaken/

Anyway, I will report back later in December after I get back from Lembeh. Until then, let's see if other people have any experience with these other macro lenses. 

Bogdan


In Topic: 100mm or 140mm dome for 8mm FE with EM-5II?

31 October 2017 - 09:52 AM

I can't help a lot but I made a similar inquiry about a year or so back and I use the 100mm dome because I like CFWA shots and the 100mm allows me to get the dome closer in some situations.  I considered the 140 but went with the 100 for that reason.  If I were not interested in the close focus ability, I would have gone with the 140.  So, the answer, I think, depends on your usage.

 

I am not sure there is much added benefit in a larger dome than 140 for this format and lens, and am not sure what larger dome even works with the Oly 8mm.

Draq, 

I have the DP-170 and it works pretty well with the Olympus 8 mm fisheye. I've enjoyed using it and there is no need for an extension with it. But it is fairly good sized and takes up more room in my carryon than the actual housing! 

I appreciate your comments on the DP-100. I'm highly considering it at this point though I haven't come across any direct comparisons to the Nauticam 140 mm port. 
Bogdan