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100% crop
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Aug 6, 2018 16:17:01   #
mwsilvers Loc: Central New Jersey
 
DirtFarmer wrote:
So according to Apaflo's definition (https://www.uglyhedgehog.com/t-546544-1.html#9272388) what we see above is two images. Neither of them is a 100% crop but the download from the links below the images are both 100% crops.

His definition calls for a 1:1 correspondence between the pixels in the image and the pixels in the display. The images in the post above are reduced by standard UHH protocol while the downloaded images show the full definition. Many browsers also reduce the display but give you a way to see the full size image by clicking on it.
So according to Apaflo's definition (https://www.u... (show quote)

I go with the common one that indicates a 1:1 pixel relationship between the actual image and the screen its presented on. If you takes a look at what I uploaded at full resolution on your monitor you will see that the components in both the crop and the original are identically sized. Where 100% crops really come into play is when the images are not displayed at full resolution. In those situations different crop percentages will yield a different apparent zoom.

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Aug 6, 2018 16:18:11   #
User ID
 
burkphoto wrote:


No argument here... I will point out that you got Google
AdSense to present me with an ad for ladies' crop tops!
Funny how that happens...



AdSense started sending me stuff on pistols, fordyfives
and 9 millimometers. The misspelling is intentional, so
I don't trigger [ooops, bad keyword] the same thing all
over again.

I quickly realized it happened cuz I'd recommended the
Tamron "super normal" lens that is not the usual 50 but
is fordyfive of those "double ems" in focal length. The
algoriddem obviously latched onto the double ems, and
the numeric 2-character "spelling" of fordyfive, as these
would be key words for gun ads.

IOW guns outweigh lenses in internet traffic and google
just wants us to buy more of whatever is selling best !


`

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Aug 6, 2018 16:21:15   #
Streets Loc: Euless, TX.
 
JohnSwanda wrote:
I hadn't heard the term 100% crop used before, and there doesn't seem to be a consensus here. I Googled the term, and there are different definitions there also, but the most common is an image which has been cropped, but not resized - in other words, a portion of an image at the original resolution.


You see, John, that my rule of cropping is the only one that people can understand. Everyone else seems to be disagreeing with everyone else. By the way, The last definition is identical to my new rule: I will call it Streets' second rule of photodynamics, in honor of Newton's second law of thermodynamics. All in favor, say "aye".

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Aug 6, 2018 16:21:55   #
Strodav Loc: Houston, Tx
 
Bobspez wrote:
To me a 100% crop means cropping to 100% resolution. In Photoshop or a viewer like Hornil Photo viewer that is shown as 100%. On UHH if you look at a posted image in Download and then click on the "+" you get a 100% view. Same in Flickr. Cropping an image to 100% (as in cropping a small bird image or cropping a full moon image) is the largest you can display the image without pixelating. If you display this on UHH, the download doesn't get any larger if you click on the "+". If your cropped image is smaller than the thumbnail view, it won't have the download option available for viewing, even if you clicked on "store original". Some people consider this pixel peeping, but shooting small birds at a distance, you are cropping at 100% to get the largest image possible without pixelating the image. It's also the only way to judge how sharp and detailed your image actually is. Even if I don't crop to 100% view, I always review my images at 100% view to judge their sharpness.
To me a 100% crop means cropping to 100% resolutio... (show quote)


Bobspez nailed it.

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Aug 6, 2018 16:26:27   #
mwsilvers Loc: Central New Jersey
 
User ID wrote:
AdSense started sending me stuff on pistols, fordyfives
and 9 millimometers. The misspelling is intentional, so
I don't trigger [ooops, bad keyword] the same thing all
over again.

I quickly realized it happened cuz I'd recommended the
Tamron "super normal" lens that is not the usual 50 but
is fordyfive of those "double ems" in focal length. The
algoriddem obviously latched onto the double ems, and
the numeric 2-character "spelling" of fordyfive, as these
would be key words for gun ads.

IOW guns outweigh lenses in internet traffic and google
just wants us to buy more of whatever is selling best !


`
AdSense started sending me stuff on pistols, fordy... (show quote)

Huh???

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Aug 6, 2018 16:26:58   #
JohnSwanda Loc: San Francisco
 
Streets wrote:
You see, John, that my rule of cropping is the only one that people can understand. Everyone else seems to be disagreeing with everyone else. By the way, The last definition is identical to my new rule: I will call it Streets' second rule of photodynamics, in honor of Newton's second law of thermodynamics. All in favor, say "aye".


It doesn't do any good for everyone to understand a definition if it is not correct. There may be disagreement, but I am very sure that 100% crop doesn't mean an uncropped image.

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Aug 6, 2018 16:29:38   #
mwsilvers Loc: Central New Jersey
 
JohnSwanda wrote:
It doesn't do any good for everyone to understand a definition if it is not correct. There may be disagreement, but I am very sure that 100% crop doesn't mean an uncropped image.


Right. The OP's original premise is incorrect.

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Aug 6, 2018 16:43:52   #
User ID
 
`

Streets wrote:

You see, John, that my rule of cropping is the only one
that people can understand. Everyone else seems to be
disagreeing with everyone else. By the way, The last
definition is identical to my new rule: I will call it Streets'
second rule of photodynamics, in honor of Newton's
second law of thermodynamics. All in favor, say "aye".



NAYE !

That differentiation between "100% Crop" and "100%
View" is very likely the key to the vernacular usage of
the former when really meaning to express latter.

There are many examples of idiomatic linguistic "short
hand" in daily conversation. I suspect that the usage
"100% crop" is just a sloppy short version of the fully
expressed phrase "CROPPED TO 100% View". Not that
users of the vernacular actually KNOW the full versions
of various short hand phrases ... nor are they aware of
these being short hand. They simply pick up the jargon
in its vernacular form becuz it works.

Within one of your sentences lurks the phrase "people
can understand". Forget ALL forms of THAT. "People" in
the collective sense, tend to NOT understand stuff, and
"could care less" that that they don't understand stuff.

Use of "could care less" is quite intentional, as another
example of very incorrect usage having a globally well
accepted meaning. "Could care less" is ALWAYS used
when the speaker means "I couldN'T care less" ... but
again, it works. Even the Grammar Nazis have thrown
in the towel on that one, granting it approval for use
"as is" in all and any writing or speech.

Not that I don't agree with your argument. But I know
that your crusade falls mainly on the ears of those who
"could care less" about it :-)

I'm as hopeless as you ! I insist that there is no such
unicorn as the "Mirrorless" camera. We got TLRs, SLRs,
RFs, etc all named for their view & focus mechanisms.
And we got LVs too. Live View cameras. But noooooo,
we let an awkward silly assed term like "mirrorless" be
foisted upon us by marketing dweebs, and we roll over.

Relish the battle, bro'. Savor the jihad, cuz thaz all you
get. Victory is overrated but resistance is vital. Keep on
keepin on ! The rest, as they say, is "100% crAp" ;-)



`

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Aug 6, 2018 16:51:46   #
BebuLamar
 
NAYE! Too.

The term "100% crop" is incorrect but everyone who ever used it meant the same thing. Using the OP definition "100% crop" as an uncrop image makes no sense.

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Aug 6, 2018 17:02:37   #
DirtFarmer Loc: Escaped from the NYC area, back to MA
 
If "100% crop" means a 1:1 correspondence between the image pixels and the view pixels then cropping an image does nothing to change that. The way to change from 100% crop is to change the size of the image by means other than cropping. Therefore the word "crop" is a red herring that confuses everyone.

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Aug 6, 2018 17:04:38   #
rook2c4 Loc: Philadelphia, PA USA
 
JohnSwanda wrote:
I have never heard of anyone referring to an uncropped image as a 100% crop. It seems to me that "100% crop" is an oxymoron. If it is 100% of the image, it is not a crop.


I worked at a big film processing and custom printing lab in the late 1990's and early 2000's, and I don't recall anyone using the term "100% crop" - neither the lab technicians, nor the photographers. Instead, "no crop", "uncropped" or "full frame" were typically used. (Of course, "full frame" has a somewhat different meaning nowadays.) Referring to cropping as a percentage value can easily be misinterpreted. For example, does 30% crop mean 30% of original image remains, or 30% of the original image is removed?

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Aug 6, 2018 17:05:29   #
speters Loc: Grangeville/Idaho
 
Streets wrote:
This term is one of the most subjective in all of Photography, so I am going to set everyone straight. From this day forward I will proclaim a 100% crop to be an uncropped image. Thus, a 50% crop is one that has half the pixel count, and a 25% crop will have 1/4 of the pixel count of the original image. Now, does everyone agree? I just can't wait for all the good, respectful replies that are sure to come.

Nope! (there is no crop involved)!

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Aug 6, 2018 22:32:13   #
burkphoto Loc: High Point, NC
 
Apaflo wrote:
Monitors are not "RGGB", so I assume that is a typo.

I didn't say it needs to fill either a screen or that it has to show the entire original image. The cropped section has to fill one dimension of the display window.

A term of art need not, and often is not, longuistically valid. That is exactly why it is called a term of art.

The simple fact is that 100% crop has been in use for decades, and like it or not it has to be understood because it will continue to be used for decades.
Monitors are not "RGGB", so I assume tha... (show quote)


Yes, typo.

Term of art can, and does often equal, pure bullshit. I’m part of the movement to improve clarity in American English.

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Aug 6, 2018 22:43:09   #
Bill_de Loc: US
 
DirtFarmer wrote:
Wouldn't a 100% crop be a photo with 100% of the pixels cropped out?


Yes. I crop a lot of my attempts 100%. I find the easiest tool to do that is the delete key.

--

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Aug 6, 2018 23:05:22   #
burkphoto Loc: High Point, NC
 
Bill_de wrote:
Yes. I crop a lot of my attempts 100%. I find the easiest tool to do that is the delete key.

--



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