Floris Bennema

Hi Byron, did you notice a change in DOF using the MFO? You separated the pigmy seahorse by panning, it made me wonder whether the MFO make it harder to get separation by DOF. Specialy relevant for small sensors.

Would be great to hear about experiences with a MFT camera. For instance with the Olympus 60mm macro (quite a hunter) and the Nauticam 45mm macro.

Finally received the 'Barmaglot alieexpress adapter'. I was a bit affraid the combination wouldn't fit in my Olympus M 5 III but it does. The trick was to connect the cables first before sliding the camera in. It helps that the adapter is extremely flexibel. So flexibel, that I am happy that I also ordered a spare. Anyhow, the weakest point of my small camera, the battery, does not bother me any more.

My Olympus M 5 III with a Nauticam trigger has no problem at 1/400. The narrow band on top appears at 1/500 Underneath it you still have more than a 3:2 image like in many other cameras. 🙂

I always like to look at photos or videos of less known coasts. Beatifull scenes, great footage! And nice to sea that the sea lions thrive so well.

Its not the plug but the length of the conector cable that I have bothers me. With a lot of effort it will fit. Not nice by itself, but I am afraid that one day it will "put its foot between the door". The aliexpess one might sove this.

Great messages Timo and Barmalot! The possible option at Dive and See that Chriss mentioned does not work. I connected them and found out that their bulkhead with Micro-USB is made to connect to a device above water. And a bulkhead like the Nauticam one, also USB-C at both sides. On Amazon I only found larger adapters. I stripped one to dimish it's size, and gave up. Especially in the Olympus M5 ii there is little room. I'll try the aliexpress adapters now.

Thanks for the information, I'll think about the Dive and Sea one, double price... And yes, the EM5 III will charge once it is switched of.

Sounds great, I am jealous. My Olympus M5 III has a micro USB connector so I considered to buy the bulkhead and add a USB-C to mini USB connector. But I gave up, likely it will to take to much space with the chance that the cable will get squezed when closing the back cover. Brr, an extra chace of leakage. Nauticam, please make a mini USB bulkhead.

Like this one with a neoprene front.

.. reasonably priced as well.

It would be great if we could make a list of judgement systems of the major competitions. So every one can judge for themselve if he/she want to take part. Is there enough knowledge here to make such a list?

There's a great difference how well your pictures are judged in competitions. See how frustrated Alex is about many of them.

I read this discussion for some time and started to wonder about the role treshold values of the camerasensor. @Chris Ross and @Architeuthis are is right when they argue that "Changing the shutter speed doesn't change the the ratio of red/green/blue photons, just the total number of photons that arrive." True, but after arriving there must be enough photons to surpass the treshold value of sensor elements of the camera. As the ratio of red light is the lowest, underexposing may cause a too low amount of red photons to activate the 'red light sensor elements'. Not all in 'red sensor elements'' but relatively.. I am not an expert, but it sounds convincing to me 🙂