Q8, PMS SEND TO THOSE WITH ISSUES BLF soda can light

Hi. I want to mount the Q8 to the flash hotshot on top of a Panasonic Lumix DMC FZ300.

Massive amount of light for night shooting.

I think it would be extremely top-heavy. As long as the hotshoe is robust, I think it would be ok, temporarily. Long term, I think you damage the hotshoe. I would feel safer mounting it to the tripod mount under the camera, or on a separate flash bracket mounted to the tripod mount.

Something like this would be safer.
B&H Nikon Bracket

Thank you.

Good day BLFers. I got 3 Q8 from Banggood US warehouse a couple of days ago. Unfortunately all 3, the o ring will pop out while screwing the body to the head. Approximately 1 in 8 attempts the oring will not pop out. Im thinking of ordering smaller size o ring. I dont know if it s the right remedy. Please need advice. Thank you all.

Is the o-ring in its groove? If so they may have changed the o-ring make, slightly different so it now pops out. Does some silicon grease help?

Yes it helps tremendously with the O-Ring not popping out since it slides in smoothly then, if the silicone grease is applied BELOW the O-Ring and not on the O-Ring itself.

Doing it under the O-Ring makes the turning action much smoother, while doing it on the O-Ring, well, if you can screw a fattened O-Ring, the BLF Q8 will become completely waterproof except for the switch, and if you can’t, well it is problematic.

Yes the O ring is in the groove. They all have grease of some kind. But i did clean the thread and o ring and regreased them on the o ring and under, and also the thread, but it did not help. The o ring felt unusually soft.
Thanks Jozz and Blue for the reply :slight_smile:

Strange. It should not feel soft, it should feel rubbery.

I think these are the O rings

https://www.fasttech.com/p/1581304

Maybe not its just maybe im not used to the feel of the bigger o ring. I will try to find slightly smaller o ring and check if it will help. Im just wondering if they change o ring size on my batch of light.

Same thing happens with mine. I’ve reapplied super lube and changed to the additional O-ring provided, but it still binds. I’m currently waiting for the O-rings from fasttech and will see if that helps at all.

Ordered and thanks :slight_smile:

The o ring will usually pop out thru groove running parallel to the light. The gooves runs thru the o ring canal. I cant compare it to my group buy Q8 because I misplaced it. By chance if anybody can check if they run thru the o ring canal, please! Thanks :+1:

If I understand what you are saying/asking, I can verify that my Q8’s have no grooves running into or thru the “O-ring canal”.

Is your O ring in this position?

It seems like they should cut the o-ring groove just the tiniest bit deeper. You could probably take a hacksaw blade and gently go around the groove and remove just the tiniest bit. Maybe just removing the black finish is enough. The head only needs to squish the o-ring a tiny bit to form a waterproof seal. I’m guessing it’s squishing it too much.

Let that hacksaw solution be your very last resort. :smiley:

Something has changed or is out of whack with yours. None of mine do that.

Is your o-ring in the position shirnask pointed out in his picture??

Yes.

And the o ring squeeze out thru that groove perpendicular to the o ring. All my 3 Q8 are doing it. Im thinking maybe they use slightly bigger o ring this time. Just my thought :weary: Just biught it from BG US warehouse.

Well then the fasttech O rings are probably the best ansewer.