Swede Loc: Trail, BC Canada

The girl- friend passed this on to me, give it a try!

http://www.funtrivia.com/playquiz/quiz3912902ccae38.html

Swede

StevenG Loc: Long Island, NY

Interesting!
Steve

rvharvey Loc: Southern New Jersey

Ouch! I only got two right!

blackest Loc: Ireland

9 / 10 i messed up the nd filter question

d2b2 Loc: Catonsville, Maryland, USA

Messed up on the flash. I almost never use one. Fun! Thank you.

LWW Loc: Banana Republic of America

9/10 ... didn't know the initials ISO.

fourg1b2006 Loc: Long Island New York

I thought i knew more than i do. lol.

Peterff Loc: O'er The Hills and Far Away, in Themyscira.

Clearly clickbait, but I learned a couple of things.

gary8803

It was fun only 6 out of 10.

rjaywallace Loc: Wisconsin

Got 8 out of 10. /Ralph

hookedupin2005 Loc: Northwestern New Mexico

3/10

BebuLamar

I got 10/10 but I guessed on Steven Sasson. I didn't know him.

Peterff Loc: O'er The Hills and Far Away, in Themyscira.

Quite!

blackest Loc: Ireland

The inverse square law :)

3 squared is 9 to make it the inverse 1/9 :) not really very useful if you know your f-stops that is more useful

1.0, 1.4, 2.0, 2.8, 4.0, 5.6, 8.0, 11.0, 16.0, 22.0.
1,2,3,4,5,6,7,8,9,10

The units don't matter a deal work in inches, feet, meters if your flash is 2 meters from the subject if you move the flash back to 2.8 meters without changing the power the subject receives 1 stop less light if you move it closer to 1.4 meters your subject gets twice as much light.

What is interesting is the fall off if the flash is 2 meters from the subject then anything 4 meters from the flash will receive 2 stops less light whats there will be pretty much lit by the ambient light. if you move the flash to 2.8 meters from the subject up the power by a stop to keep the exposure of the subject the same then the background at 5.6 meters back is 2 stops down the fall off takes longer.

If you bring the flash close to the subject then the range of the flash can be much shorter. e.g if you were to take a photo of a flower with the flash 4 inches from the flower at 8 inches the flash would have no effect isolating your subject. All the background would be in the shadows. You can kill the ambient light using a small aperture (so without the flash everything would be under exposed) or maybe use an nd filter to reduce the effect of ambient light. Fun isn't it :)

Joe Blow

I only got the nine trick questions wrong. The tenth I got wrong on my own.