Nikon D7100 1.3x option (Page 7): i can read, i accept what nikon presents in their chart as gospel. Frame a subject so it totally fills the 1.3 mode. What is the area,, how many...

oldtigger Loc: Roanoke Virginia-USA

Howard5252 wrote:

On Page 68 of the D7100 owner's manual, Nikon has a chart. ...what word would you use to describe the difference between the two?

i can read, i accept what nikon presents in their chart as gospel.
Frame a subject so it totally fills the 1.3 mode.
What is the area,, how many pixels does it use?
Without moving anything, shoot the subject in normal mode and crop the image so the subject totally fills the crop.
Whats the area and pixel count?
Now we have two similar images and guess what?
The area and pixels and resolution and image size are all the same as they were in the 1.3 mode..
Choosing the 1.3 mode did not reduce the resolution.

Brucej67 Loc: Cary, NC

Told you he would never get it, now he want's you to crop the FX mode to the DX mode (or similar on the D7100 to 1.3), Nikon never said anything about physically cropping the DX image to make it the same size as the 1.3. He doesn't understand resolution period and he never will.

Howard5252 wrote:

On Page 68 of the D7100 owner's manual, Nikon has ... (show quote)

Howard5252 Loc: New York / Florida (now)

oldtigger wrote:

i can read, i accept what nikon presents in their chart as gospel.
Frame a subject so it totally fills the 1.3 mode ...
shoot the subject in normal mode and crop the image so the subject totally fills the crop.
Whats the area and pixel count?

You've got it backwards.
To get the "Telephoto Effect" the normal image is not being cropped down to fill the smaller 1.3x area. The pixels in the 1.3x area area are being enlarged to fill the full size area. THAT is the "Telephoto Effect".

Howard5252 Loc: New York / Florida (now)

Brucej67 wrote:

Told you he would never get it, now he want's you to crop the FX mode to the DX mode (or similar on the D7100 to 1.3), Nikon never said anything about physically cropping the DX image to make it the same size as the 1.3. He doesn't understand resolution period and he never will.

I gave it one more try ... after that I will give up.

oldtigger Loc: Roanoke Virginia-USA

Brucej67 wrote:

Told you he would never get it, now he want's you to crop the FX mode to the DX mode (or similar on the D7100 to 1.3), Nikon never said anything about physically cropping the DX image to make it the same size as the 1.3. He doesn't understand resolution period and he never will.

you don't have to crop anything.
if the normal image is a house with a small door and the 1.3 shows only a small door, the resolution of the house and its door, in the normal mode and the door shown by the 1.3 shot will all be the same.
No crop required, it just made measuring area easier for me.

Howard5252 Loc: New York / Florida (now)

oldtigger wrote:

you don't have to crop anything.
if the normal image is a house with a small door and the 1.3 shows only a small door, the resolution of the house, its door, and the door shown by the 1.3 shot will all be the same.
No crop required, it just made measuring area easier for me.

If the "Normal image" was of the WHOLE HOUSE and now you enlarge the DOOR to the size of the HOUSE (THE TELEPHOTO EFFECT) ... guess what suffers?

Brucej67 Loc: Cary, NC

By definition of resolution you are wrong. There is more information contained in 36mb than in 24mb period.

oldtigger wrote:

you don't have to crop anything.
if the normal image is a house with a small door and the 1.3 shows only a small door, the resolution of the house, its door, and the door shown by the 1.3 shot will all be the same.
No crop required, it just made measuring area easier for me.

oldtigger Loc: Roanoke Virginia-USA

Brucej67 wrote:

By definition of resolution you are wrong. There is more information contained in 36mb than in 24mb period.

resolution is the smallest element a camera system can distinguish as being seperated from some other element.
A larger sensor area may increase the number of data points you can record but it does not improve the resolution just by being bigger.

Brucej67 Loc: Cary, NC

Resolution

The resolution of a surveillance camera's image is measured in the number of pixels contained in the image. The higher the number of pixels, the more detail in the image. Higher resolution images give you the ability to zoom into the image to see fine detail.

Typical Resolutions
VGA: 640 x 480
D1: 720 x 480
Full D1 (FD1), 960H: 960 x 480
720p: 1280x720
1.3 MegaPixel: 1280x1024
1080p, 2.1 MegaPixel: 1920x1080
3 MegaPixel: 2048x1536
5 MegaPixel: 2592x1920
6 MegaPixel: 3072x2048

Counter that definition with any quote that changes this definition from anywhere on the web and show where you got it.

oldtigger wrote:

resolution is the smallest element a camera system can distinguish as being seperated from some other element.
A larger sensor area may increase the number of data points you can record but it does not improve the resolution just by being bigger.

oldtigger Loc: Roanoke Virginia-USA

Brucej67 wrote:

Resolution...
Counter that definition with any quote that changes this definition from anywhere on the web and show where you got it.

here are 4 sources which say resolution can be determined by two points and hence would derive no benefit in having a larger sensor area:
"The resolution of an optical microscope is defined as the shortest distance between two points on a specimen that can still be distinguished by the observer or camera system as separate entities."
http://www.microscopyu.com/articles/formulas/formulasresolution.html
oooo
"Magnification is the enlargement of an image; resolution is the ability to tell two objects apart."
http://www.boundless.com/microbiology/textbooks/boundless-microbiology-textbook/microscop...
Source: Boundless. Magnification and Resolution. Boundless Microbiology. Boundless, 21 Jul. 2015. Retrieved 23 Aug. 2015 from http://www.boundless.com/microbiology/textbooks/boundless-microbiology-textbook/microscopy-3/looking-at-microbes-28/magnification-and-resolution-241-6418/
oooo
"Scientists think of resolution as the ability to tell that two objects that are very close together are distinct objects rather than just one.
http://sciencelearn.org.nz/Contexts/Exploring-with-Microscopes/Science-Ideas-and-Concepts...
oooo
"Not to be confused with magnification, microscope resolution is the shortest distance between two separate points in a microscopes field of view that can still be distinguished as distinct entities." - See more at: http://www.microscopemaster.com/microscope-resolution.html#sthash.2F0imh13.dpuf
http://www.microscopemaster.com/microscope-resolution.html

Brucej67 Loc: Cary, NC

Wow I can't believe you resort to microscope definition to equate to a camera resolution. Makes absolutely no sense in determining size and resolution in camera technology show me the same information as relates to camera.

oldtigger wrote:

here are 4 sources which say resolution can be det... (show quote)

Brucej67 Loc: Cary, NC

I can support what I say directly using search engine, can you? http://electronics.howstuffworks.com/cameras-photography/digital/digital-camera3.htm

oldtigger wrote:

here are 4 sources which say resolution can be det... (show quote)

oldtigger Loc: Roanoke Virginia-USA

Brucej67 wrote:

Wow I can't believe you resort to microscope definition to equate to a camera resolution. Makes absolutely no sense in determining size and resolution in camera technology show me the same information as relates to camera.

there is no difference, all the same animal whether we measure it in the electrical, mechanical or optical domains, its still just resolution.

oldtigger Loc: Roanoke Virginia-USA

Brucej67 wrote:

I can support what I say directly using search engine, can you? http://electronics.howstuffworks.com/cameras-photography/digital/digital-camera3.htm

thats what i just did.
search term:
"what is resolution?"
Read page after page, never did see sensor area or megapixels mentioned.

Brucej67 Loc: Cary, NC

So with this statement:
Digital Camera Resolution

The amount of detail that the camera can capture is called the resolution, and it is measured in pixels. The more pixels a camera has, the more detail it can capture and the larger pictures can be without becoming blurry or "grainy."

What you are saying is the same amount of pixels exist in 36MB as in 24MB image, gee if that is true I might as well sell my D800 and D810 and stay with my D7100.

oldtigger wrote:

thats what i just did.
search term:
"what is resolution?"
Read page after page, never did see sensor area or megapixels mentioned.