Noise in the reflection table: bug?

[Polymax]

In light sources (hidden illumination) visibility is on?

[cecofuli]

As default. I didn't touch nothing.  )

[Polymax]

I tried to repeat, well, maybe other conditions ...

[cecofuli]

Soon I'll send you the full Corona scene =)

[Polymax]

I did a quick test.
Slightly changed the render settings.
Crop mode rendering (therefore, the noise is more than a "view" mode), 250 pass

[cecofuli]

Interesting. What's about the noise on the chrome spotlight, on the top-right side of the brown ceiling? 
Obviously, what did you change? =)

[Polymax]

Interesting. What's about the noise on the chrome spotlight, on the top-right side of the brown ceiling? 
Obviously, what did you change? =)

ok. i try crop render of chrome spotlight!
I slightly changed the render settings.
Tonight I will render in high resolution, tomorrow will show the result :)

[cecofuli]

Can I ask you what parameters did you change? MSI? Lights samples?
Is the DOF off? Why?

[Polymax]

I reset renderer to default and changed:
1. Exposure compens = 4
2. Highlight comp = 5
and that's all :)
Well I need more time to achieve the best result, so tomorrow I will see what should be changed more (after hires render) :)

[cecofuli]

Only these? Mmm... I have to try me too =)

[Polymax]

I'll have to test with your scene, but now the result is:
What do you think?
PS. I use the method of solving the problem "step by step", so while rendering without the DOF! ;)

[cecofuli]

Good, but, as you can see on the chrome lamp, after 4 hours, still very noisy. Can you share your renderer setting by a screenshot?

[Polymax]

I tried to explain in the picture:

[cecofuli]

So, you suggest me to replace the real CoronaLights with Mesh + CoronaMtl emitters? Ok, I'll try...

[Stan_But]

So, you suggest me to replace the real CoronaLights with Mesh + CoronaMtl emitters? Ok, I'll try...

light mesh emitters are very noisy now. As and very many lights too.
Corona lights + coronaconstant mat will help you get out from noise