Understanding Exposure

julie32

TPF Noob!
Joined
Jun 25, 2007
Messages
354
Reaction score
0
Location
New York City
Website
www.juliestarkphotography.com
Can others edit my Photos
Photos OK to edit
I just bought Bryan Peterson's book that was recommended here on the forum. First of all, the book is amazing, so helpful and easy to understand. But I do have one question... in the beginning of the book he shows some photos and on the bottom he says what the f stop was, as well as the shutterspeed. But there's no mention of which ISO he used.
Any idea why that would be?

Thanks in advance.

julie
 

Helen B

TPF Noob!
Joined
Sep 16, 2007
Messages
3,296
Reaction score
467
Location
Hell's Kitchen, New York
Can others edit my Photos
Photos NOT OK to edit
The likely answer is that he is trying to show the effect of different shutter speeds and apertures, and the ISO doesn't really matter.

Best,
Helen
 

fatsheep

TPF Noob!
Joined
Jan 2, 2008
Messages
132
Reaction score
0
Can others edit my Photos
Photos OK to edit
I just bought Bryan Peterson's book that was recommended here on the forum. First of all, the book is amazing, so helpful and easy to understand. But I do have one question... in the beginning of the book he shows some photos and on the bottom he says what the f stop was, as well as the shutterspeed. But there's no mention of which ISO he used.
Any idea why that would be?

Thanks in advance.

julie

I forget what page this is on but at one point he says he uses ISO 100 about 99% of the time so it is probably ISO 100.
 

Sideburns

TPF Noob!
Joined
Aug 14, 2007
Messages
2,796
Reaction score
0
Location
Windsor, Ontario
Can others edit my Photos
Photos OK to edit
The last two pages I think are what explains ISO...lol. He mentions that almost all of his shots are ISO 100.

But in the early pages, it doesn't really matter. He's trying to show the affects of shutter speed, then aperture, and etc...

Pay attention to what he's talking about at the time...and you'll learn lots.
 

harmonykaye

TPF Noob!
Joined
Jan 8, 2008
Messages
1
Reaction score
0
Location
Green Bay, WI
Can others edit my Photos
Photos NOT OK to edit
Hi all. I just registered for this site today. I have 4 years studio experience at the local Sears and I am starting to go on my own. I have done some engagement pics and some family pics but still not familiar with exposure, F stop, ISO, etc. What is the book you guys are referencing so I can pick it up. Thankfully my engagement shoot went ok they hired me for the wedding...

Thanks!!!!
 

jstuedle

No longer a newbie, moving up!
Joined
Jun 30, 2005
Messages
4,889
Reaction score
14
Location
S.E. Indiana
Website
www.picture-daddy.com
Can others edit my Photos
Photos NOT OK to edit
Hi Harmonykaye. Welcome, but why don't you go to the welcome and intro's forum and introduce yourself. You will get a lot more welcomes there. BTW, glad you found us.
 

jstuedle

No longer a newbie, moving up!
Joined
Jun 30, 2005
Messages
4,889
Reaction score
14
Location
S.E. Indiana
Website
www.picture-daddy.com
Can others edit my Photos
Photos NOT OK to edit
The book is "Understanding Exposure" by Bryan Peterson.

Great book to keep around. I bought it when I was teaching my grandson, I think he still has it. (because I can't seem to find it at the moment)
 

Jermz_01

TPF Noob!
Joined
Oct 22, 2007
Messages
273
Reaction score
0
Location
Arctic North (Michigan)
Website
www.flickr.com
Can others edit my Photos
Photos NOT OK to edit
if I can jack the thread in regard to Peterson's book...

I am reading it at the moment off and on... he keeps mentioning he meters off something (say the blue sky), adjusts until a correct exposure is indicated (f/stop or shutter speed), recomposes (to shoot a tree let's say), then shoots his subject...

how is he metering effectively? I mean... I guess I am just not completely "getting it"... doh!
 

JerryPH

No longer a newbie, moving up!
Joined
Oct 14, 2007
Messages
6,111
Reaction score
15
Location
Montreal, QC, Canada
Can others edit my Photos
Photos NOT OK to edit
how is he metering effectively? I mean... I guess I am just not completely "getting it"... doh!

Simple!

First off he is in manual mode. Second he points the camera at (let's say) the sky, sets ISO/shutter speed/aperture or a combination thereof based on his meter.

He then points the camera at something else (a house, person, etc...). The camera is telling him his settings are wrong, but they are not. He focuses, and shoots without changing settings.

Thats "recomposing" without changing settings.
 

Sideburns

TPF Noob!
Joined
Aug 14, 2007
Messages
2,796
Reaction score
0
Location
Windsor, Ontario
Can others edit my Photos
Photos OK to edit
if I can jack the thread in regard to Peterson's book...

I am reading it at the moment off and on... he keeps mentioning he meters off something (say the blue sky), adjusts until a correct exposure is indicated (f/stop or shutter speed), recomposes (to shoot a tree let's say), then shoots his subject...

how is he metering effectively? I mean... I guess I am just not completely "getting it"... doh!

Either you manipulate your manual controls until the needle is in the center (or otherwise indicates a correct exposure)...or you shoot in an auto mode (other than auto hopefully), and you use your exposure lock setting. (the * button)

You get the exposure right for the area you meter off of...lock it, or use manual settings...and then you recompose and take the pic...ignoring the meter.
 

Jermz_01

TPF Noob!
Joined
Oct 22, 2007
Messages
273
Reaction score
0
Location
Arctic North (Michigan)
Website
www.flickr.com
Can others edit my Photos
Photos NOT OK to edit
that's what I was thinking he was doing... that to me seems to always result in pic's that are not exposed properly...

too dark... to light... etc, etc, etc... I have much to learn...

thanks! thread jacking -> end
 

Most reactions

New Topics

Top