RobinD

in air, my MFO on a 105, can only focus up to +/- 30 cm in front of my port, anything beyond it wont focus. In water, its up to +/- 100 cm (like on the nauticam port chart). So i do believe, water has a big impact in how this lens works, although I dont know how it affects image quality. I would not use the mfo without water between port and wetlens.

im using Panasonic BQ-CC55 chargers. I did have one or two dead batteries a long time ago, but not in recent years. I allways travel with a few extra batteries. I do try to keep the eneloops bundled in pairs of 4, Never had issues like in your pictures myself

onderwaterhuis.nl shows the mfo at 449 EUR edit oops thats what you said 🤫

Hi all! what routine do you follow for drying your ports and water contact optics in between dives? One of my old macro ports is hammered with water stains / glass corosion, I nowdays try to avoid water from drying on to my ports. However, I wonder how other photograghers handle this issue, if they dry their ports and if so, with what (towell, paper, micro fiber etc) like to hear! greetings Robin

I did try the MFO with a 60 mm macro, it works nice on pretty close subjects, but it starts to vignet (badly) at subjects at a little more distance. I guess this will make it not so usefull on even wider lenses, although i havent tried it.

I do use the diffusers, the green water here is full of sediment, I use the white diffusers here. When i go to tropical diving, I plan to get the wide angle diffusers, for the little color shift. I also use reduction rings, that also stay on when transporting the strobes. I dont use bumpers / neoprene covers. Didnt try the reflectors myself, might look into that at some point 😁

MFO stands for Mid-range focus optimizer (according to Nauticam) 😁

MFO 😄

hi Guys, used to visit the Wetpixel forums quite often, took me some time to find this one! greetings from the Netherlands, Robin