a7RII+Meikon Case+ST-100 Strobe

guzy wrote:

daveco2 wrote:

guzy wrote:

Wow, you're good with tools daveco2, but I don't have that kind of tools here (actually I don't have a gut to do this :D). I prefer to replace the sync bulkhead with optical, as this is safer option to eliminate one of the leaking possibility from the housing. I wonder if there is a way to make DIY optical connector on nikonos style bulkhead

It may be possible. You would have to take off the Nikonos bulkhead connector, determine if it is threaded in or held on with a nut on the inside of the case, and find a fiberoptic bulkhead with O-ring or flat rubber washer seal that would fit. You might get lucky in all that. If not, then you would have to make your own adapter to mate with the fiberoptic bulkhead of choice. That would require a lathe.

The fiberoptic connection is easy. The "window" on my Fantasea case is simply a clear plastic rectangle with outside ports that the fiberoptic cable pushes into. Making a cylindrical clear window would be easy. I could give you help in that, but you would first need to make some precise measurements with a dial caliper.

Does your TTL system work off the camera flash? Do you have a dial caliper?

My housing is Meikon a7ii like yours daveco2, so you know what kind of bulkhead it is. Basically I prefer to have a 'window' in that bulkhead rather than drilling a hole at the body, but I'm interesting to know how you gonna make it.

If only there's a similar optical fitting connector like this (nauticam housing) that can be adopt to the meikon housing

I sent Nauticam a note asking if they sell their fo port separately. I suspect not, but we'll see. Other auxiliary fo port makers like Turtle have units with a laser diode embedded and an electrical connector coming out of it, so adapting to a custom fitting on the inside would be problematic. In that respect, the question is, "How do you intend to do the electrical-optical conversion?" That would determine how you design the inside section of the fitting. For example, would a diode have to be brought up close to it and fixed in place?  The outside part is easy as it can be a simple hole to accept a fiberoptic cable.

I made measurements of the Meikon case connection area. It's a pretty large hole, so would require making a fitting to fit inside, preferably with a nut to hold it in place like the original Meikon fitting. But as mentioned above, its design would depend on the e-o conversion technique. Alternatively, and maybe more desirable, the Meikon electrical connector could be modified so as to retain their original double o-ring sealing; but in that case it would be wise to have a second connector as backup. I don't know if Meikon sells them separately.

Meikon case electrical fitting mounting area. Flats across the 0.914 flat area prevent the fitting from rotating as the inside nut is tightened. The recess flat and hole are o-ring seal surfaces, and two o-rings are used. Nicely done design by Meikon.