[Review] SST-20 in FW3A is divine!

My 2c:

Some time ago I owned two D4S, XP-L HI 3D 4000K and SST-20 4000K because I wanted to check which I prefer and leave just one for myself.
The throw was nearly the same, I had problems to determine which throws further.
But with both lit up at the same time, the SST-20 tint was obviously biassed with green. And I’d guess SST-20 boils up 20% sooner.
For these two reasons I sacrified high CRI for better tint and less heat. XP-L version is still with me.

(After all I still consider SST-20 to be a great LED. But similary to 219B - it just should not be pushed hard. A perfect diodes for keychain or other small lights)

I agree…. Love my 219B’s. And there are many out there who would agree.

Thank you! This was very informative!

Do you have a link to the filter products you are referring to? I would like to have a look.

I’m surprised nobody seems to complain about rosy tints. I have an equal dislike for rosy tints and green tints.

It seems green-tint phobia is a thing?

Yes.

I don’t actually like rosy tints, which is why I dislike the 219B, which I’ve actually seen in real life.

I prefer the FD2 SST-20’s tint.

Of course, we can’t deny that the current high power LEDs that have the best tint are the E21As, and in the mid-power range, the Optsolis.

My 5000K E21’s have major changes at powers above 700ma. Granted the worst in this CIE are just bare emitter.

+1. It may well be that, statistically, more people prefer rosy Duv to green Duv, and maybe even to perfect BBL. But there must be a significant, if silent, minority, that, for general usage, prefers no Duv. Just as, I guess, I find myself in what must be a significant minority of people who prioritze CRI over tint. My eyes can compensate for tint variations, but there is no way to compensate for low CRI.

Well i like rosy tint, especially at night during work. So much easier on your eyes than other tints/colors

For daytime ops SST20 looks better

I would be surprised, but this matches what the researchers found. There was always someone who complained, no matter which tint was used… so no single choice will please everyone. However, the tints which had the fewest complaints were rosy to a degree of approximately –10 to –15 mduv.

It may also relate to the old idiom about rose-colored glasses. The phrase didn’t come from nowhere. Humans, in general, seem to find a touch of pink to be a bit more pleasant. Meanwhile, the counter-idiom of jade-colored glasses (or being jaded) refers to a more unpleasant outlook.

The ones I see discussed most often are the Lee minus-green filters. For example:

$2 for a swatch book, if you’d like to try a few.

Neutral > Rosy > Green is my order of preference.

Compared to super green LEDs like the FB4 SST rosy ones look much better to my eye. However if I have a neutral tint (FD2 SST 20 and my good tint lottery 219cs in my D4) I find I much prefer it to a particularly positive or negative DUV.

To me the SW45K looks great next to super green LEDs, but when I compare it to any emitter that’s remotely neutral it looks pretty bad (even if it ends up making me perceive all others as “green”). It’s offensively rosy in the same way some are offensively green. That’s just my experience anyway ¯\/¯ The FD2 is as close to perfect as I’ve seen so far.

Has anyone tried minus green filter on glasses?

haha, that seems to be what people want :slight_smile:

these will substract maybe a bit more duv than required

Ah ha! It’s actually a Locus that merges the BBL and the Daylight Locus. Very cool. It does so by using the 5000k-4000k region to transition.

But… WHY? If the Daylight Locus is more green than the BBL, what is the supposed advantage of “merging” them this way? To say it another way: What light source is anyone measuring that they’d want to skew the “results” in this way?

Are you seriously complaining about the color of daylight? The advantages are numerous for technical and non-technical reasons. We evolved under daylight. We want our lighting to agree with daylight. Not have some weird discrepancy.

I understand that our eyes are naturally matched to daylight. But, why merge the lines? What advantage is it in scientific testing of “fluorescent” lights, including LEDs? The two lines exist already, and can be measured against, so what does this add that we need?

EDIT: BTW, I’m not complaining about daylight. That would be silly! :stuck_out_tongue:

I love these new below BBL LEDs for photography!!!