a7RII+Meikon Case+ST-100 Strobe

daveco2 wrote:

I just received all the items to assemble my a7RII inside the case and connect to their ST-100 strobe.

ST-100 cycle time: I measured the cycle time with a 20 ns risetime detector and oscilloscope shown below. Camera set to multiple exposure, jpeg plus raw images. Strobe set on M, SD card 95 MB/s speed class, Recycle Rate=3.16 fps. Cycle rate for camera alone=5 fps. No difference for format set to fine jpeg only. For strobe set to Full, recharge time=7 sec. I'm not able to get the TTL setting to work consistently, probably requires more work on my part. If I can't figure this out, I may return the strobe.

Thank you for the detailed info. Am I correct in assuming that 316ms is recharge time at minimum power, as opposed to 7sec at maximum power?

Meikon Case: I was pleased to find a double o-ring seal on the rear cover. I hadn't seen this listed in specs in their literature.

It's kind of unintuitive, but they have a list of o-ring sizes for all of their housings here: https://meikon.com.hk/collections/spare-o-rings

From this, you can see which housings have single o-rings, and which ones have double seals.

The camera top mode dial cannot be actuated through the case, the case knob misses it completely.

Interesting, so it's not just the lock... do you think that maybe a rubber cap on top of the mode dial could keep the lock button depressed and increase the dial diameter to engage the knob? Or is there insufficient clearance from the other parts around it?