Fast Glass ?

Joined
Jun 9, 2006
Messages
3,761
Location
Durham, NC
Using a 85mm f/1.4 lens, and using Nikon's Camera Control Pro 2 software, you can see the effect aperture
size has on shutter speed. Camera is in aperture priority mode:


f/1.4:

i-gpNK7Lj-X3.jpg
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f/1.8:

i-BwTBbSv-X3.jpg
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f/2.8:

i-QPbkZdQ-X3.jpg
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f/3.5:

i-pZfbP6C-X3.jpg
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f/5.6:

i-D3x5j3Q-X3.jpg
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f/6.3:

i-Q5V8fSq-X3.jpg
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Changing ISO from 200 to 12,800:

i-Jr5RF7D-X3.jpg
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f/5.6:

i-B4ZMjxd-X3.jpg
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Joined
Jun 9, 2006
Messages
3,761
Location
Durham, NC
D3s + 85/1.4 + Camera Control Pro appears to be a rather expensive way to discover the relationship between aperture, shutter speed and ISO.

It was done for somebody not familiar with the variables that determine exposure. I "discovered" it many years ago. Would you have been happy if I used my D70?
 
Joined
Mar 20, 2011
Messages
1,959
Location
Australia
there once was a time you couldn't even take a picture without this piece of knowledge.

it wasn't all that long ago either.
 
Joined
Jan 26, 2008
Messages
4,971
Location
Huntington Station, NY
I rather use something like this. To begin with, it's actually correct, while in your screenshots the lighting changed a bit and the exposure settings are not quite equivalent.

Exactly. I don't understand why the Camera Control screen shots are used just to show relationships between aperture, shutter speed and ISO.

Using a table like on the Wiki site makes much more sense because all the relationships can be seen and you can easily see how a change in one of the variables affects the others.
 

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