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Toggle between RAW and jpeg with these images. Ever seenanything so weird?



 
 
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  #1  
Old August 25th 16, 02:17 AM posted to rec.photo.digital
Floyd L. Davidson
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Posts: 5,138
Default Toggle between RAW and jpeg with these images. Ever seenanything so weird?

RichA wrote:
Look at the change in the Canon RAW to Jpeg. Arguably,
the best Jpeg and vastly different than the RAW. Pentax
is weird too. RAW very good, Jpeg not so good.

https://www.dpreview.com/reviews/ima...51288434416907


So tell who is the larger fool, you are the people who
posted that? You *can't* look at a RAW image, there is
no such thing. The only image you can possibly look at
has been converted to an RGB format, such as JPEG. And
of course if you see two different JPEG's from the same
RAW file it just means someone set up the conversions
differently. Whoop de doo!

I downloaded the D5500 RAW file shot at ISO 12800.
Interesting, as it has several hundred pixels that are
clipping in the raw sensor data, in all four colors.
The Exif data indicates it is over exposed by +0.2 EV.

The embedded JPEG, generated by the camera, from the RAW
file has almost 39,000 pixels that are clipping. The
"Quality" setting was 76, so somebody intensionally
configured the camera to produce a relatively poor
quality JPEG.

The ACR generated JPEG only has about 10,000 pixels that
are clipping. Not perfect, but better than the camera
JPEG as far as brightness goes. The Quality setting is
96, which is the reason the file is 32Mb in size; the
main point though is the obvious attempt a the highest
quality JPEG possible (greater than 92 merely adds size,
not quality).

Overall, as a test this is simply ridiculous! It means
nothing and suckers fools, Rich.

--
Floyd L. Davidson http://www.apaflo.com/
Ukpeagvik (Barrow, Alaska)
  #2  
Old August 25th 16, 09:14 AM posted to rec.photo.digital
Floyd L. Davidson
external usenet poster
 
Posts: 5,138
Default Toggle between RAW and jpeg with these images. Ever seenanything so weird?

RichA wrote:
On Wednesday, 24 August 2016 21:18:12 UTC-4, Floyd L. Davidson wrote:
RichA wrote:
Look at the change in the Canon RAW to Jpeg. Arguably,
the best Jpeg and vastly different than the RAW. Pentax
is weird too. RAW very good, Jpeg not so good.

https://www.dpreview.com/reviews/ima...51288434416907


So tell who is the larger fool, you are the people who
posted that? You *can't* look at a RAW image, there is
no such thing. The only image you can possibly look at
has been converted to an RGB format, such as JPEG. And
of course if you see two different JPEG's from the same
RAW file it just means someone set up the conversions
differently. Whoop de doo!

I downloaded the D5500 RAW file shot at ISO 12800.
Interesting, as it has several hundred pixels that are
clipping in the raw sensor data, in all four colors.
The Exif data indicates it is over exposed by +0.2 EV.

The embedded JPEG, generated by the camera, from the RAW
file has almost 39,000 pixels that are clipping. The
"Quality" setting was 76, so somebody intensionally
configured the camera to produce a relatively poor
quality JPEG.

The ACR generated JPEG only has about 10,000 pixels that
are clipping. Not perfect, but better than the camera
JPEG as far as brightness goes. The Quality setting is
96, which is the reason the file is 32Mb in size; the
main point though is the obvious attempt a the highest
quality JPEG possible (greater than 92 merely adds size,
not quality).

Overall, as a test this is simply ridiculous! It means
nothing and suckers fools, Rich.

--
Floyd L. Davidson http://www.apaflo.com/
Ukpeagvik (Barrow, Alaska)


Why not post this in the comments section of the Dpreview story?
Might be more interesting than seeing fanboys ranting about their brand back
an forth.


There is no "comments section" of that article.

--
Floyd L. Davidson
http://www.apaflo.com/
Ukpeagvik (Barrow, Alaska)
 




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