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The dilemma of the exposure triangle
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Dec 10, 2014 03:37:03   #
abc1234 Loc: Elk Grove Village, Illinois
 
speters wrote:
Actually, any one exposure variable gives you six combinations of shutter speed, aperture and ISO that are of equal value.


Please show me the six combinations. I cannot figure that out. I am not considering the fact that you can adjust your aperture by many 1/3's of a stop with associated changes in shutter speed and ISO. When you do, you have dozens of combinations.

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Dec 10, 2014 04:12:01   #
Peekayoh Loc: UK
 
lighthouse wrote:
... - in auto modes with exposure compensation you are limited to about 2 stops of compensation either way. In manual you have access to all of your cameras settings.
Not with my Sony cameras; plus or minus 5 stops compensation.
I can't believe that CaNikon aren't similar.

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Dec 10, 2014 04:12:15   #
Peekayoh Loc: UK
 
abc1234 wrote:
.... Please keep in mind that this is copyrighted.
WHY?

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Dec 10, 2014 06:40:28   #
abc1234 Loc: Elk Grove Village, Illinois
 
Peekayoh wrote:
WHY?


Why not? Can you show me anything like this created previously by someone else?

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Dec 10, 2014 07:35:25   #
RodL Loc: Down Under
 
abc1234 wrote:
Why not? Can you show me anything like this created previously by someone else?


I have been using this as a teaching tool for several years, I developed it to help students and its not copyrighted, I feel as an educational learning tool I do not want to limit its use. Apart from that it is pretty much generic anyway.

Attached file:
(Download)

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Dec 10, 2014 07:48:45   #
RodL Loc: Down Under
 
here it is again as a jpg file. Feel free to use it. If you want a copy of the original word file contact me and I will forward it.



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Dec 10, 2014 08:13:18   #
abc1234 Loc: Elk Grove Village, Illinois
 
RodL wrote:
here it is again as a jpg file. Feel free to use it. If you want a copy of the original word file contact me and I will forward it.


This is a very fine piece and how beginners can find it useful. However, I do not see the similarity to Pick Any Two.

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Dec 10, 2014 11:12:32   #
Anne
 
Wow! This really breaks through some of the fuzzy stuff about the exposure issue. I would like a pdf, haven't figured out how to send you a private message yet.

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Dec 10, 2014 11:26:43   #
redhogbill Loc: antelope, calif
 
Anne wrote:
Wow! This really breaks through some of the fuzzy stuff about the exposure issue. I would like a pdf, haven't figured out how to send you a private message yet.


click on their user name above there avatar, in heavy blue in apprentices (SEND PM} click on that, walaa!!

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Dec 10, 2014 11:27:38   #
redhogbill Loc: antelope, calif
 
Uuglypher wrote:
Here is the "Photographer's Triangle" I use in conjunction with teaching the "Brighter-Stop/ Darker-Stop system of maintaining a Zero-change balance in the Bright/ Dark Stop Bank Account using the E.V. of the base exposure to provide the possible exposure combinations maintaining the zero-change "Bank Balance". Students have caught on uniformly more quickly in the recent decades since I've been using this introduction to exposure.

It seems to lend itself well to the "Pick Any Two" approach and encourages transition to MANUAL exposure control as well as understanding the other exposure modes offered by any camera model so that intelligent choices can be made among the available modes. When comfortable with MANUAL it's amazing how those students become less defensively dogmatic that MANUAL is the ONLY mode to use.

Best regards,
Dave
Here is the "Photographer's Triangle" I ... (show quote)


best triangle I've seen yet

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Dec 10, 2014 16:29:28   #
Peekayoh Loc: UK
 
abc1234 wrote:
Why not? Can you show me anything like this created previously by someone else?
Not exactly the same but there are loads of cheat sheets out there.
Are you expecting to make money out of yours?

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Dec 10, 2014 16:36:50   #
RodL Loc: Down Under
 
abc1234 wrote:
This is a very fine piece and how beginners can find it useful. However, I do not see the similarity to Pick Any Two.


The fact that there is only ever three variables to "pick" or choose or set.
With mine you "pick" or choose or set the ISO required and then you "pick" or choose or set the shutter speed or the aperture. So you have "picked" any two.

How is this not similar?

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Dec 10, 2014 16:40:57   #
RodL Loc: Down Under
 
Uuglypher wrote:
Here is the "Photographer's Triangle" I use in conjunction with teaching the "Brighter-Stop/ Darker-Stop system of maintaining a Zero-change balance in the Bright/ Dark Stop Bank Account using the E.V. of the base exposure to provide the possible exposure combinations maintaining the zero-change "Bank Balance". Students have caught on uniformly more quickly in the recent decades since I've been using this introduction to exposure.

It seems to lend itself well to the "Pick Any Two" approach and encourages transition to MANUAL exposure control as well as understanding the other exposure modes offered by any camera model so that intelligent choices can be made among the available modes. When comfortable with MANUAL it's amazing how those students become less defensively dogmatic that MANUAL is the ONLY mode to use.

Best regards,
Dave
Here is the "Photographer's Triangle" I ... (show quote)

Dave this is a very well thought out teaching tool, I am sure it has and will continue to help give a better understanding of exposure and the interaction of the camera settings. 100 out of 100.
Thanks for sharing

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Dec 10, 2014 18:02:58   #
lighthouse Loc: No Fixed Abode
 
Peekayoh wrote:
Not with my Sony cameras; plus or minus 5 stops compensation.
I can't believe that CaNikon aren't similar.


I checked out the A350 and that has 2.
A7R specs say 5.
Nikon D750 has 5.
Canon 7D2 has 5

My 5D2 has 2.
I guess I'm just behind the times LOL.

But it doesn't really matter much to me anyway. I am just as comfortable working in manual as I am in the semi auto modes, and for many situations I prefer the consistency of manual.

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Dec 10, 2014 21:41:30   #
abc1234 Loc: Elk Grove Village, Illinois
 
Peekayoh wrote:
Not exactly the same but there are loads of cheat sheets out there.
Are you expecting to make money out of yours?


Hmm, not exactly the same. Well, how about showing me a few that are close to Pick Any Two? I really do not want to duplicate someone else's efforts.

Am I expecting to make money out of this? Why would you say something like that?

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