All Shutter Speeds Let In The Same Amount of Light...

[Josh66]

Where's the missing dollar?

Trick question.

 

[GeorgieGirl]

Hate math. Yup, I'm a hater.

 

[Light Artisan]

The real cost of the room was $25.

30-5=25, 25/3 = 8.3333333333333333, not $9.

1 + 1 + 1 + 1 + 1 = 5; not math!!

So three friends go to a convention and decide to share a room.

When they check in, the desk clerk tells them the room is $30.00. (This was a long time ago).

Each guy pulls out $10.00 and gives it to the clerk (10 x 3 = 30) and they check in to room 203.

Later the clerk realizes that the hotel was running a special and that he overcharged the three. He hands a $5.00 bill to the bell hop and tells him to give it to the guys in room 203.

The bell-hop is a tad less than honest so he pockets $2.00 and gives $3.00 to the three friends in rm 203.

Now let's do an accounting: Each of our three friends spent $10.00 -- 3 x 10 = 30, but then got $1.00 back so the real cost of the room for each of them is $9.00. 9 x 3 = 27 and then there's $2.00 in the bell hop's pocket so 27 + 2 = 29. 30 - 29 = 1 !!Where's the missing dollar?

Joe

 

[Dao]

Light is a form of energy. Let's talk about energy.

I am sure using a well control fire to burn your butt for 1 sec is totally different than burn your butt for 9 secs.

 

[Light Artisan]

Ha!

Yeah, expose your butt to a flame for one second - then expose it to a flame for 10 seconds and see if you feel the same way. I mean, the flame is constant after all...

 

[OrionsByte]

1 + 1 + 1 + 1 + 1 = 5; not math!!

So three friends go to a convention and decide to share a room.

When they check in, the desk clerk tells them the room is $30.00. (This was a long time ago).

Each guy pulls out $10.00 and gives it to the clerk (10 x 3 = 30) and they check in to room 203.

Later the clerk realizes that the hotel was running a special and that he overcharged the three. He hands a $5.00 bill to the bell hop and tells him to give it to the guys in room 203.

The bell-hop is a tad less than honest so he pockets $2.00 and gives $3.00 to the three friends in rm 203.

Now let's do an accounting: Each of our three friends spent $10.00 -- 3 x 10 = 30, but then got $1.00 back so the real cost of the room for each of them is $9.00. 9 x 3 = 27 and then there's $2.00 in the bell hop's pocket so 27 + 2 = 29. 30 - 29 = 1 !!Where's the missing dollar?

Joe

If the bellhop had not stolen the money, each friend would have gotten one and two-thirds of a dollar back. Since he kept two dollars and each friend only got one dollar, he basically stole 2/3 of a dollar from each friend. 2/3 + 2/3 + 2/3 = THREE dollars, not two. BAM! Missing dollar.

EDIT: Whoa, my math brain messed up. It's still only $2. It still explains it though - it's not missing, it just didn't get divided up so it screwed up the math. Can I go to bed now? This thread is making my nose bleed.

 

[dandaluzphotography]

Ha!

Yeah, expose your butt to a flame for one second - then expose it to a flame for 10 seconds and see if you feel the same way. I mean, the flame is constant after all...

lol

 

[Light Artisan]

You're too late, I already solved it.

 

[mrpink]

for a given period of time, given the same aperture and light source.

I've been having a big debate with a friend about the above statement hopefully you guys can help settle. Let me explain.

(light source and aperture remain constant)

He says a slower shutter lets in more light. I completely agree. As a total amount of light, yes it does.

I also say that a shutter speed of 5 seconds, lets in the same amount of light as a shutter speed of 1 second. Let me explain that.

(Light source is constant)

If I have a camera that is set to an aperture of 9 and the shutter speed is set to 5 seconds, x amount of light comes into the sensor. Let's call the amount of light 10, just to give it a value.

Now, I have the same camera set to an aperture of 9 and a shutter speed of 1 second. Let's call that amount 2.

My assertion is that both settings let in the same amount of light.

Don't go nuts yet!

They let in the same amount of light but since the setting of 5 seconds is longer, the result is more light.

My assertion is that if you were to take the shutter speed of 5 and divide it by 5 and the amount of light (10) and divide that by 5, you come up with 1 and 2, respectively.

The same amount light for that given period of time (1 second).

Thoughts?

Thanks,
Danny

Remind me to never go out drinking with you crazy guys....





p!nK

 

[Josh66]

EDIT: Whoa, my math brain messed up. It's still only $2. It still explains it though - it's not missing, it just didn't get divided up so it screwed up the math. Can I go to bed now? This thread is making my nose bleed.

There is no missing money. It's a trick question.

The $2 the bell hop stole gets subtracted from the room cost, not added to it.

 

[OrionsByte]

EDIT: Whoa, my math brain messed up. It's still only $2. It still explains it though - it's not missing, it just didn't get divided up so it screwed up the math. Can I go to bed now? This thread is making my nose bleed.

There is no missing money. It's a trick question.

The $2 the bell hop stole gets subtracted from the room cost, not added to it.

Thank you.

 

[GeorgieGirl]

for a given period of time, given the same aperture and light source.

I've been having a big debate with a friend about the above statement hopefully you guys can help settle. Let me explain.

(light source and aperture remain constant)

He says a slower shutter lets in more light. I completely agree. As a total amount of light, yes it does.

I also say that a shutter speed of 5 seconds, lets in the same amount of light as a shutter speed of 1 second. Let me explain that.

(Light source is constant)

If I have a camera that is set to an aperture of 9 and the shutter speed is set to 5 seconds, x amount of light comes into the sensor. Let's call the amount of light 10, just to give it a value.

Now, I have the same camera set to an aperture of 9 and a shutter speed of 1 second. Let's call that amount 2.

My assertion is that both settings let in the same amount of light.

Don't go nuts yet!

They let in the same amount of light but since the setting of 5 seconds is longer, the result is more light.

My assertion is that if you were to take the shutter speed of 5 and divide it by 5 and the amount of light (10) and divide that by 5, you come up with 1 and 2, respectively.

The same amount light for that given period of time (1 second).

Thoughts?

Thanks,
Danny

Remind me to never go out drinking with you crazy guys....





p!nK

No, yur commin' and weer tawkin' expo'sha. Get ready.

 

[gsgary]

You will go nowhere in photography

 

[sobolik]

The temperature of a flame is constant : the amount of light is constant

Over time the constant temperature flame results in a larger sum of BTU's : over time the constant amount of light results in a larger sum of exposure

 

[GeorgieGirl]

BTU's is a measure of heat. BTU's does not equal Kelvin. Or Kevin if he so insists.