Re: Playing with a Macro Extension Lens...



JoeSpareBedroom wrote:
"John H." <jherring1@xxxxxxxxx> wrote in message news:pfc6m39l57jcsln09und0j87jjstkp01np@xxxxxxxxxx
On Sat, 15 Dec 2007 01:23:57 GMT, "JoeSpareBedroom"
<dishborealis@xxxxxxxxx> wrote:

"John H." <jherring1@xxxxxxxxx> wrote in message
news:0t96m3l4ei17sis1pmr94lmi1s6qoanqg3@xxxxxxxxxx
On Sat, 15 Dec 2007 00:37:43 GMT, Short Wave Sportfishing
<email@xxxxxxxxxxxx> wrote:

On Fri, 14 Dec 2007 18:43:05 -0500, John H. <jherring1@xxxxxxxxx>
wrote:

On Fri, 14 Dec 2007 23:24:48 GMT, Short Wave Sportfishing
<email@xxxxxxxxxxxx> wrote:

On Fri, 14 Dec 2007 17:26:40 -0500, John H. <jherring1@xxxxxxxxx>
wrote:

I shoot in what the D200 calls "jpg fine". Usually this hasn't been a
problem. I didn't do any processing, other than cropping the sides.
Not
sure what you mean by 'color space'. I am going to change the sharpness
setting, if I can find it.
Basic primer - color space is the mathematical space in which color is
expressed by numbers, the adding and substraction of to obtain shade.
Put simply, this process is called gamut. There is a more detailed
explanation if you are interested

There are base three schemas used in defining color:

RGB (which is the same method used in human site), but density
(shading/combining to obtain other colors) is limited to about 30%of
what is called Lab Color Space which is based on the CIE Lab1931color
space. It is designated on your camera as sRGB

Adobe space is called aRGB or sometimes Adobe (in the color space on
your camera's menu) and has a wider gamut representing 50% of the 1931
color space.

The third is Adobe's Wide Gamut space, but frankly it sucks and you
probably don't have it on your camera anyway.

There are other types of color spaces depending on the needs of the
graphics environment, but these are the most commonly accepted in the
world of digital cameras.

What happens in processing is that the processor sometimes will be set
to sRGB and if you take the image in aRGB, it makes the translation
and you might not even be aware of it. Could be the reverse.

Might not be that at all, but it's worth looking into.
When I put the card in the card reader, Adobe Elements opens to download
the pictures from the card. Once the pictures are downloaded, I close
Adobe
and use IrfanView to view them, make small fixes, and crop, if necessary.
Up to that point, I'm thinking Adobe has had no impact on the pictures.
Sometimes I'll open a picture in Adobe and adjust color, contrast, etc,
but
not often.
Never mind.
I'll go back to my room.
--
John H

Do you have access to any photography books that predate the digital era?

Well, I've got a library within a few blocks.
--
John H


You have to learn to take pictures which are 99% correct when you click the shutter, and forget that there's software, the modern equivalent of the darkroom. Shut of ALL focus and exposure automation, and never mind the bad eyes excuse. Alfred Eisenstadt took nice sharp pictures with a manual focus camera until he was much older than you.

See if you can find books like this:
http://search.barnesandnoble.com/booksearch/isbnInquiry.asp?z=y&EAN=9780821221846&itm=4




Bingo.
.