Solar Filter

[The Conservative]

What if you took 5% mirror Crome tint layered thrice, it would allow .0125 of light through.

Reflective solar filters allow .01% of light through. If my math is correct that is, I believe I may have found a cheaper way to get a filter. Of course just as effective. At 1/50th the price.

[TheReal_ND]

Show the maths. I think it's going to be 95x95x95 filtration not 95+95+95 jic you aren't aware. I might be wrong though. I guess adding percentages is the same thing maybe though.

[The Conservative]

Show the maths. I think it's going to be 95x95x95 filtration not 95+95+95 jic you aren't aware. I might be wrong though. I guess adding percentages is the same thing maybe though.

.05 is what goes through. Not 95%

[TheReal_ND]

So is it .05/.05/.05 or...

[TheReal_ND]

Oh I see I forgot to multiply. How is 5% mirror chrome .05? Is it because of the mirror?

[Speaker to Animals]

You'd get 0.045% out of it.

[The Conservative]

You'd get 0.045% out of it.

How do you get that? .05x.05x.05 = 0.000125

[Speaker to Animals]

You'd get 0.045% out of it.

How do you get that? .05x.05x.05 = 0.000125

You are multiplying the wrong things.

95% filtered from 100% leaves you with 5%.

95% of 5% is: .05 * .95 = 0.0475%

95% of 0.0475% is: 0.0475 * .95 = 0.045125%.

If you stacked three filters that filter out 95%, you'd filter out all but 0.045125% of the light, which may be okay depending upon your aperture and shutter speed settings (I don't really know about that). I am just straightening out your calculations.

[The Conservative]

You'd get 0.045% out of it.

How do you get that? .05x.05x.05 = 0.000125

You are multiplying the wrong things.

95% filtered from 100% leaves you with 5%.

95% of 5% is: .05 * .95 = 0.0475%

95% of 0.0475% is: 0.0475 * .95 = 0.045125%.

If you stacked three filters that filter out 95%, you'd filter out all but 0.045125% of the light, which may be okay depending upon your aperture and shutter speed settings (I don't really know about that). I am just straightening out your calculations.

Times three?

[Speaker to Animals]

How do you get that? .05x.05x.05 = 0.000125

You are multiplying the wrong things.

95% filtered from 100% leaves you with 5%.

95% of 5% is: .05 * .95 = 0.0475%

95% of 0.0475% is: 0.0475 * .95 = 0.045125%.

If you stacked three filters that filter out 95%, you'd filter out all but 0.045125% of the light, which may be okay depending upon your aperture and shutter speed settings (I don't really know about that). I am just straightening out your calculations.

Times three?

No.

Each subsequent filter receives a smaller amount of light since they are serially arranged with a single input transmitted in sequence.

If X is the initial amount of light:

((.95 * X) * .95) * .95)