Mailinglist Archive: opensuse (1367 mails)

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Re: [opensuse] Writing coments on photos problem - yes, again! O:-)
On 02/01/2016 11:24 AM, jdd wrote:
Le 01/02/2016 16:34, Anton Aylward a écrit :

Are you talking abut a JPG being embedded in a RAW file?

no


I ask this because on my camera if I select RAW ONLY (as opposed to
RAW+JPG)

a) all the 'scene' settings are now disabled.
That means the camera isn't converting raw to a JPG using a
particular algorithm. it can't, no algorithm is selected

are you sure? I only own Canon cameras (now 5DMKIII), but I still can
choose "green auto+" *and* RAW

Maybe I'm privileged but that's the way my Fuji works :-)


of course there is no jpg (may be a thumbnail, but this is unimportant),
but the raw file have to hold all the camera settings, even if don't
applying any. it have at least to display the images on the camera
screen :-)

By "hold" you mean "record', and 'settings are the shutter, aperture,
iso, flash, lens info. Some software can use this to, for example,
apply lens correction for distortion or aberration to the RAW processing.


after all, all the "scene" modes are only variations on the camera setup.

I would not phrase it that way.
I would phrase it as

"They are variations in the algorithm the camera uses to processes the
raw (not my use of lowercase here) data from the sensor to produce a jpg"

Maybe its a good algorithm. it will certainly vary between vendors,
even for the same "scene". my point is that it relying on someone elses
smarts.

This if fine if, as John points out, you're doing holiday snapshots.
But why do that with a $1,000+ DSLR/lens combo when you can do JPG
snapshots with a $100 P&S.

What? Well there's a little discounted end of line Sony P&S that is a
shirt-pocket size for CAN$99 going in the "Source" store (what used to
be Tandy, what used to be Radio Shack) in my local mall. 20megapixels.
http://www.thesource.ca/estore/Product.aspx?language=en-CA&catalog=Online&category=all-point-shoot-camera&product=8020032
or more mainstream
http://www.thesource.ca/estore/product.aspx?language=en-CA&product=8012634&ref=flipp_hosted_119755

I'm a great believer in "shirt-pocket" cameras. As cellphone cameras
have demonstrated, sometimes the convenience and availability of the
camera outweighs other considerations. A few times I've caught
evidential images for this reason.

I'm not comparing this C$89 (that's US$63) with even a mid-range DSLR.
I'm saying that it meets John's point about "holiday snapshots and
sharing" for less than it would take the family to a buffet restaurant
during that holiday. Holidays are expensive enough anyway!

If you want to spend $200 or $400 on a Canon easy-carry, or even the
G10/11/12, which I can recommend, for a little more, for your holiday
snapshots, then fine. Or if you prefer something more traditional
http://www.dpreview.com/reviews/canonsx1is/

But draw the line between snapshots and "serious" photography as John did.


asI understand it, the raw file is *not* an image, the default camera
setup included in it allows Nikon Capture

I don't get your point here.

Any digital file is "not an image".
It's a digital file.
So what?

I'm not sure what you mean by "default camera set-up".
The RAW file contains the *SPECIFIC" information about the image, the
*SPECIFIC* camera settings, shutter, iso, aperture etc at the moment the
photograph was taken. that pertains to the jpg too, but there are
fields in a jpg that won't be in a RAW simply because it is 'post
processed'.

I realise that English isn't your first language, but I'm trying hard
here to make sure that what I say is as unambigious as possible.


http://imaging.nikon.com/lineup/microsite/capturenxd/about/

That and your earlier URL are more marketing than fact.

The section "RAW Processing Explained" is a good basic outline about
what raw processing is about. "Basic" and "outline" being the
operatives there!
The illustration is of a photo editor run on a PC.
That it is of Nikon's own photo editor is beside the point.

If you rely ONLY on what your camera is capable of doing then you are
limiting yourself.
Yes you can spend a lot, and by that I mean up around $5,000 or more, on
a camera that can do about 20% of the editing that can be done in
Photoshop or Darktable.


to apply these settings as default, giving the same raw as the camera
would have done, then of course tune it

Again that's ambiguous. I don't see what point you're making.


--
A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting frowned upon?

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