Decomike

I'm looking for tips, hints and suggestions for our stay in the Dominican Republic (Punta Cana) begin november. Not only underwater but also the nature above.

Gr. Mike.

Who can help me?!

I'm looking for a loc-line distributer in Europe (Netherlands). So far i only found one in the USA, www.modularhose.com, but shipping prices makes it expensive.

I needed 4 x 61501 (partnumber loc-line 3/4").

Mike.

I want to replace my common lens to use it as a common lens on land and underwater on the Canon 10d. I read some reviews and both the Tamron 17-35 Di and Canon 17-40 L are looking good and covers the range i was looking for.

Can anyone tell me more about the Tamron, especially underwater? I already understand the 17-40 L is nice underwater but a Tamron is around $200 less. Is the Tamron really as sharp as the Canon and not soft like some Sigma lenses?
(I recently got the money to buy a Canon lens (100mm macro) and discover how sharp a picture can be   )

I own two DS-125 Ikelite substrobes and want to use them on my Ikelite house for the Canon 10D with eTTL. These substrobes have a serial number far below 2500 and according to Ike's site the need a $150 update each to operate with eTTL, a lot off money and that's without the transport to the Netherlands.

So because of that I want to know, is it really needed? I did some test above water and it looks working. I can use TTL, manual and ajust the power. Also did a test underwater, short one because 4 degrees isn't very nice, and again looks nice. Little but because the pictures needed some adjustment (to dark). I shot with f19 en f22 shutter at 1/200 (Av) substrobe can then be already at maximum power?? Wasn't the right way to test.

Link to the pictures

Who can tell me more about this? Any experience with the same combination? Maybe Ike?
Is it that the old DS-125 works with the eTTL but doesn't give a right exposure without the modification or is there more?

Gr. Mike.

Can i use a longer flat port then Ikelite advise for a lens? This is the case; use a 5505.58 flat port (5.1"-6.1") for the Canon 100mm USM macro and not the 5505.45 flat port (4.5"-5.5"). It is only 0.6" longer so i would say no problem, or am i wrong?

Gr. Mike.