Hello,
I hope someone could give me some advice on this issue
I am an amateur photographer and I have bought 2 BLF A6 led torches to use as an additional light source for macrophotography.
It was important that they had a color temperature of +/- 5000 K because I have to mix them with light from other light sources (electronic strobes or daylight).
Before ordering them at Banggood I have checked the specs:
There are 3 different tints
1A = 6500 K (Cool white)
3D = 5000 K (neutral white)
5A = 4000 K (Yellow light)
So I have ordered the 3D type. I received the flashlights, good service!
But… the product that was delivered, had clearly yellowish light.
Yet, the packaging did say “3D”. So what is wrong? It could be a packaging mistake. Maybe these are 5A (4000 K) flashlights in 3D packaging. Or, it could be the wrong led, so a production error.
I’ve put some pictures her: Dropbox - File Deleted - Simplify your life
- A standard neutral grey card as it should look at 5500 K.
- The same card lighted with the light form the BLF torch. It is extremely yellow.
- A photographic test image as it should look at 5500 K
- The same image lighted with the light form the BLF torch. It is extremely yellow.
I do not have all of the test equipment like a colorimeter, but with my camera I can also measure a custom WB and I then obtain a 3950 K color temperature.
I have tried with some CTB gel filters to increase the color temperature but no real succes. It is not only a matter of adding more blue. And the flashlights get too hot anyway to put a gel filter in front of it.
I have contacted Banggood but they do not really have an explanation. OK I could ask to have the flashlights exchanged but I’m afraid that I will just have the same problem again.
So I was more thinking of replacing the led itself. I’ve seen this on Banggood
The question of course is: is this 3D really a Neutral White led or also a 5A Yellow one? And is there a way of telling what is what? I have removed the led pcb from the flashlights. The only indication on it is “A1700 L”.
Of course I could buy another type of flashlight, but I do love this BLF A6, I did choose it for a reason: it is a small but extremely versatile flashlight.
Has anyone had the same experience with the led not being the right tint?
TIA
Paul