I agree that KD lenses are typically purple. That particular lens would have a bluish tint. Not green filtering but would be curious what Δuv offset.
Edit: As purple is a combination of red and blue and an AR glass would reflect those colours, would a blue filter shift the tint temperature?
Updated edit (3/1/22):
So I had a misunderstanding of those KD lenses. Their representation of AR is always a bluish tint. I had fallen on one particular model (don’t know which specifically) that stated one of their lenses was blue-tinted, and I had assumed they meant many models as represented with the flip-over on the main page.
I should have realized this and strangely, no one corrected me.
Just received a M3-C (which I will be reviewing). I can’t get the 6-click from off to switch between ramping and stepped brightness. Any advice on what I might be doing wrong?
This may take a while. I’m not sure if it could be a month or it could be two months. Affected by the epidemic and the Russian-Ukrainian war, this year is a difficult year, and my funds are not very sufficient.
Not in a hurry with more temperatures. Although I have to admit I’m very much looking forward to trying them.
It’s been a crazy ride lately with the initial 519a offering, the FC40 and B35AM, the upcoming M21x models, etc. Heck, I’m still waiting for some shipments to arrive. Then play with new hosts, swap emitters, form an opinion, etc. And by the time I’m done with that, it’ll be daylight most of the day anyway. Until autumn comes and flashlight stuff goes into high gear again. At least that’s how it works for me personally. And I still need to resist getting that T4. That orange is just so appealing. It looks to be exactly the same as the S21A orange (my favourite Convoy colour!)
I’ve got to say, I don’t think the solid post positive contact is a good idea as-implemented on 21700 lights, because of physics…
Inertia is proportional to mass.
21700 mass is almost 50% higher than 18650.
Given the same spring rate on the tail end, it’s much easier to get disconnects on the solid post end with a 21700 than it is with an 18650.
There are setups where k was high enough to offset 18650 inertia, and issues were probably rare. So there should probably be either 21700-specific heavy tail springs, or dual-end springs, from a design standpoint.
I’m holding the M21C 2000K in my hand right now. It’s a great light, and this is not a deal-breaker. But it is easy to change modes by gently bopping the rear of it with my hand.
I don’t use mode mem, so it’s a minor annoyance at worst, but it’s still a flaw.
There are a number of convoy 21700 lights that are dual-spring.
Had issues with the button and replaced with a spring. Convoy had these:
Just a note: ground the pigtail (skewed end) and soldered that end to the board. Too stiff to flatten out for proper electrical contact.
The material is steel as some have observed in the customer reviews. Mine are magnetic Simon responded they were copper and perhaps he was given a steel batch; hence the discontinuation?
Conductivity-wise, it would have been better as brass being about a quarter of pure copper compared to steel which is a sixth. Bronze doesn’t fair well at one eighth (BeCu about one fifth).
