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Nikon D7100 1.3x option
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Aug 23, 2015 19:30:44   #
oldtigger Loc: Roanoke Virginia-USA
 
Brucej67 wrote:
...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 ....


Two years ago i would have climbed up on the soap box and helped you spread 'the word'.
Now i'm a little more educated and can understand why my antique 36mp D800 can never achieve as high a resolution as my 24mp D7100 did.
I can even understand why my 36mp D810 will never come close to the performance of the old 36mp D800E.

You seem to view resolution as how many samples are gathered but resolution is really all about the optical quality of those samples.
It is pointless for us to continue this discussion.
The people to whom it matters have heard both sides and don't need us to educate them any further.
Thankyou for keeping the interchange civil.

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Aug 23, 2015 19:49:26   #
LoneRangeFinder Loc: Left field
 
I didn't think we would come to resolution on this.

:shock:

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Aug 23, 2015 20:21:21   #
oldtigger Loc: Roanoke Virginia-USA
 
LoneRangeFinder wrote:
I didn't think we would come to resolution on this. :shock:


people will argue over the strangest of things.
When i printed, i knew what white was, what black was, knew the zone system from a to z.
Then 1 day i printed my first cibiechrome and realized black was not the lack of light, it was the quality of light which could never be captured by any other print media.
From that moment on black was never the same, and now 30 years later i would be willing to argue that point if someone cared..

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Aug 23, 2015 22:49:13   #
Howard5252 Loc: New York / Florida (now)
 
GOOD BYE.

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 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.

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Aug 24, 2015 01:43:01   #
TucsonCoyote Loc: Tucson AZ
 
oldtigger wrote:
Since a digital zoom can never be better than the native mode in terms of IQ and resolution and blowing up an image degrades both IQ and resolution so what would you gain by using it?
The optical zoom improves both.

Well oldtigger, this response of yours pretty much spells it out but nobody noticed !
I just wish you were a better mentor ......and got off your damned high horse once in awhile !

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Aug 24, 2015 08:02:02   #
Howard5252 Loc: New York / Florida (now)
 
Hello -
For those of you who have followed this far ... I should have posted this picture much sooner. It is (my) drawing of what you see in the viewfinder with each option. With the DX option, the photo boundaries are the full screen. Notice the 1.3x outline that appears (the pencil line) when that option is chosen. This will now be the boundary of photo (not the full screen). This is the basis for the telephoto effect. I have pasted below a post and my response.
oldtigger wrote:
"... 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".

What you see in the D7100 viewfinder
What you see in the D7100 viewfinder...

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