WTS: Calibration lights for DIY integrating spheres / lumen tubes - 67 € -

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emarkd
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SKV89 wrote:
Received Maukka’s email with the test reports. Getting a S2+ with 6252k and practically perfect non tinted DUV of -0.0002 so I will have a reference of what pure CW looks like. The other is 5053k and DUV of -0.0045 so I can see how rosy/magenta that might look. Excited to receive them! Big Smile

I also got my email and had the same thought process. My numbers are different than yours of course, but I’m really looking forward to seeing a beam with my own eyes and comparing my subjective ideas of what that beam looks like to the objective numbers representing it. And that’s not to even mention how useful these will be for calibrating our homemade measuring devices. This is awesome, and I can’t thank Maukka enough for doing this for us.

JasonWW
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Payment and other info is sent.

Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights

Click this to go to signature links. I'm still around, just not reading many new threads.

KawiBoy1428
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We should be good to go!

Thank You! Beer

KB1428 “Live Life WOT

maukka
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Majority of the 2nd batch shipped. Ran out of BLF348 so Billy X has to wait til next week, sorry.

dmsoule
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Interested in the set, whenever they are available. Thanks, maukka! Not sure how I missed this originally, so thanks to Adventure Sport Flashlights for mentioning it on YouTube also.

Mike C
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I guess I’m too late to get some sent next week if I order? I’m leaving for three months vacation next weekend, I can’t have uncollected packets in the mail, they’ll just bounce back.

maukka
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Probably can’t send before then, but I can hold your package until you return home and send it then. It only takes a couple of days to arrive in Sweden.

Mike C
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Cool, thanks. I think I’ll just have them sent to someone else instead.

A few quick questions if I may though… The lights that you are calibrating and sending, the modes they are calibrated on, are they PWM modes or constant current? Also, how does light measurement with spheres and tubes respond to PWM modes compared to a constant current mode?

maukka
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The S2+ uses PWM on the low and mid modes, but the integration time in lux meters is much slower than the 4.6 kHz on the light output. Shouldn’t affect the readings at all.

Mike C
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Okidoki, thanks. Put me on the list and I’ll start checking who I can get the packet sent to.

Texas_Ace
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VOB just put up a good video on these:

slimkango
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Please add me to the list for a set of these calibration lights! Thank you!

Pezo
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Well, as VOB put it I’ll regret not getting these, so I’m in for a set. Thanks maukka for doing this!

MRsDNF
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Nice video from VOB as usual. Thanks for sharing TA. Beer

 

djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

vestureofblood
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Guess who got a shipping notice? THIS GUY!!!!!!!!!!! I am so excited over this I can hardly contain myself!!!!!!!!!!!!!!!!!!!!

In Him (Jesus Christ) was life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not.
http://asflashlights.com/ Everyday Carry Flashlights, plus Upgrades for Maglite.

vestureofblood
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joechina wrote:
djozz wrote:
vestureofblood wrote:
djozz wrote:
vestureofblood wrote:
If your ok with that I could use some help pronouncing your screen name….
I’m looking forward to how that sounds like Smile

I’ve been wanting to ask you the same question djozz….???

Big Smile djozz should be pronounced as if I were a really cool dj (there actually is a belgian dj who is not me but who calls himself djozz) , but my actual name is Jos which is pronounced close to “ioss”.

What about this pronunciation: https://translate.google.fi/m/translate#mt/en/djozz Smile

djozz wrote:
Sounds good, I support that one Big Smile

Well if that one is right then I still blew it!!! That’s the trouble with us foreign guys djozz. You can’t even count on us to get your name right! Sorry if I butchered it…….
.
After I already had the video done my wife suggested this could be the correct sounding one.
https://translate.google.com/#nl/en/Jos

In Him (Jesus Christ) was life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not.
http://asflashlights.com/ Everyday Carry Flashlights, plus Upgrades for Maglite.

fsvendsen
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I am also interested in the set Smile

Glow_Worm
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I have one calibrated light already, but I can’t pass on getting a couple more at this price.

Please put me down for a set when available maukka.

Thanks so much!

miswas
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 Hello maukka,

 

I've sat on the fence long enough, the splinters are killing me Wink

 

I would like 1 set of the calibration lights please.  I'm not sure just what info you need from me when, so if you would be so kind as to PM me I'll put things into the proper sequence.

 

And, thank you so very much for your time, effort, generosity, and floating the cost of these lights so that we can have in our hands TWO true calibration devices.  This is so amazing!! Smile

 

 

-Ben

 

-Ben Walker
miswas

maukka
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It’s easy. I will PM you for payment and other details (address, email) when the set is measured and ready to go out the door.

Mark M
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maukka, please put me down for a set!

miswas
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maukka wrote:
It's easy. I will PM you for payment and other details (address, email) when the set is measured and ready to go out the door.

 

Thank you for the details Smile   I'll wait for your PM, then.

 

Take care!

 

 

-Ben

 

-Ben Walker
miswas

Mike C
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I’m jumping off the list for now. When I get back from my vacation I prefer to send you some of my own for calibration, just gotta hope you still offer that service when I’m back. I do not want anything on order from anywhere to anywhere while I’m away, piece of mind is worth a lot. Remove me from the list.

maukka
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Sure thing. I have enough lights coming in for about 50 sets total so you’ll probably be fine.

steel_1024
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1. BLF348
2. Olight i3E

1. BLF348

2. Olight i3E

Maukka’s data:

Sorry for my poor english.

Texas_Ace
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steel_1024 wrote:
1. BLF348
2. Olight i3E

1. BLF348

2. Olight i3E

Maukka’s data:
!https://farm1.staticflickr.com/941/42768675365_722c1c3012_z.jpg!

Wow, I am quite impressed. Blushing

Newlumen
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Yea me too. TA lumen tube works really great.

vestureofblood
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Thanks for sharing steel!

In Him (Jesus Christ) was life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not.
http://asflashlights.com/ Everyday Carry Flashlights, plus Upgrades for Maglite.

maukka
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Thanks for the results. So neutral high CRI is spot on, cool white lower CRI is about 3% too high.

I see you have two extra diffusers there. How many did you use on the TA tube?

peabody
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Here we go with the math again.(Steel’s lights)I took Maukkas readings at 30 sec.
So we got 35 and 34.1 which is somewhere around .972. (so if 40 is the reading-38.88)
And we got 98 and 94.5 which is somewhere around .965. (so if the reading is 485-468.02)
Now, since we have a difference should we average the .972 and .965? ( .968.5 )
We get up into the higher numbers with the S2 and the number goes smaller ,say .945 do we just average all numbers or just the two calibrated lights we have?
Sorry to be so dumb about this. Math is not my forte’.

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