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How do you decide when an image is good enough for a poster-size blow-up?
Jan 15, 2018 15:49:55 #
John_F wrote:
To get the rest of it, check these.
Nice photographic copies, there, John ...
I like the rich color tone of the table, too ...
And those cut marks came out good, too ...
What did you use, John?
Jan 15, 2018 15:59:53 #
Chris T wrote:
Hereyago, B ...
The same Topic Post title which appears on every single page of this thread:
How do you decide when an image is good enough for a poster-size blow-up?
The same Topic Post title which appears on every single page of this thread:
How do you decide when an image is good enough for a poster-size blow-up?
It just seems you are inquiring about how "circle of confusion" is defined than about how it might pertain to deciding when an image is good enough for poster-size printing.
Jan 15, 2018 16:31:42 #
Just an iPad wih no hint toward masterpiece status.
Chris T wrote:
Nice photographic copies, there, John ...
I like the rich color tone of the table, too ...
And those cut marks came out good, too ...
What did you use, John?
I like the rich color tone of the table, too ...
And those cut marks came out good, too ...
What did you use, John?
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Jan 15, 2018 17:39:48 #
bcrawf wrote:
It just seems you are inquiring about how "circle of confusion" is defined than about how it might pertain to deciding when an image is good enough for poster-size printing.
Well, B ... I do have to admit the circle John introduced, confused the hell outta me ....
If it's related directly to my Topic Post title, then, I guess - a definition is called for ...
Jan 15, 2018 17:42:28 #
John_F wrote:
Just an iPad wih no hint toward masterpiece status.
Really, John?
You took those with an i-Pad, huh?
Good tones ... rich, warm colors ... not bad, at all ....
Love the cut marks in the table - excellent DOF !!!!
Jan 18, 2018 16:10:14 #
Chris T wrote:
Let's say you want to fill a wall ... with a 20x24, or a 30x40 ... or even a 40x60 ... what makes it worth the effort?
(third attempt)
I look at the picture for good composition. Then I look for sharpness by zooming in as much as possible. If the zoomed-in piece looks sharp on my 32-inch TV, then I proceed with printing. The attached picture is a 3x4 foot display. It even looks sharp from 6 inches. It was taken with a Sony A7Rm2 camera and the 90mm G macro lens (which has been #2 in sharpness on the DXOMARK list of lenses since they tested it on the A7Rm2. Note: DXOMARK rates lenses sharper when they are tested on higher megapixel sensors, so their ratings will change over time.)
Jan 18, 2018 17:17:09 #
Logan1949 wrote:
(third attempt) br I look at the picture for good ... (show quote)
Logan ... which piece is this?
Or - is the top shot the window through which you can see the Apple Blossom?
So, you reckon you have the second-most sharp lens there is, do you, Logan ... when used with the Sony a7R Mk. II ? .... Neat!
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Jan 18, 2018 19:42:27 #
This is a white Dogwood tree.
The close-up is in the lower, left corner.
The original photo was split, 4x4, into 16 close-ups.
A DXOMARK rating is only accurate when compared against lenses tested against the same sensor size and the same number of megapixels. Fewer megapixels in the sensor earn a lower lens sharpness rating than more megapixels (even if the lens tested with fewer megapixels is actually sharper).
The close-up is in the lower, left corner.
The original photo was split, 4x4, into 16 close-ups.
A DXOMARK rating is only accurate when compared against lenses tested against the same sensor size and the same number of megapixels. Fewer megapixels in the sensor earn a lower lens sharpness rating than more megapixels (even if the lens tested with fewer megapixels is actually sharper).
Jan 18, 2018 22:11:01 #
Logan1949 wrote:
This is a white Dogwood tree.
The close-up is in the lower, left corner.
The original photo was split, 4x4, into 16 close-ups.
A DXOMARK rating is only accurate when compared against lenses tested against the same sensor size and the same number of megapixels. Fewer megapixels in the sensor earn a lower lens sharpness rating than more megapixels (even if the lens tested with fewer megapixels is actually sharper).
The close-up is in the lower, left corner.
The original photo was split, 4x4, into 16 close-ups.
A DXOMARK rating is only accurate when compared against lenses tested against the same sensor size and the same number of megapixels. Fewer megapixels in the sensor earn a lower lens sharpness rating than more megapixels (even if the lens tested with fewer megapixels is actually sharper).
Oh, I see, Logan ... thought perhaps it was something like that ....
I couldn't find the blow-up, though ... matched them all, too ... guess I was looking too high up (because of the branch formation - connecting with sky)
If that's how DxOMark does their testings, it would seem most unreliable, dontchathink, Logan?
PS - I see it, now .... thanks for pointing it out to me ....
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