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Old March 24th 12, 08:27 PM posted to rec.photo.equipment.35mm,alt.photography,rec.photo.digital,rec.photo.digital.slr-systems
Eric Stevens
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Posts: 13,611
Default New mandate needed

On Sat, 24 Mar 2012 10:24:22 -0400, Alan Browne
wrote:

On 2012-03-23 21:46 , Eric Stevens wrote:
On Fri, 23 Mar 2012 17:13:43 -0400, Alan Browne
wrote:

On 2012-03-22 19:08 , Eric Stevens wrote:
On Thu, 22 Mar 2012 15:35:13 -0400, Alan Browne
wrote:

On 2012-03-22 00:21 , Eric Stevens wrote:

This time I wasn't going to be first to make this last point, but I
have said it previously. The maximum image size (what is it, 1200 x
800?) is fine by me but depending on the subject, this can lead to
JPEGs ranging from 200kB to around 2MB. If you don't believe me, try
it. I have a continual battle with file size and image quality and

I don't believe 2 MB.

I've since posted an example.

Fair enough. I've since posted the same photo at 1200x800 and 300 kB.
(Actually a little larger).

Even with a high amount of detail in the image I
rarely see anything above 500 kB or so. Reducing the quality level to 8
or 7 (PS CS5 scale) is usually enough. I have submitted some at quality
level 6 with little or no discernible quality loss.

I'm sorry that's meaningless to non-CS users like me.

See below.


Display it smaller as well as at a lower quality level. 1200x800 is
arbitrary. And quite large compared to how most photos are shown on the
web.

But are the photographs intended only to be adequate on the web?
Perhaps that's my problem? I'm trying to give an impression of what it
might be like in a print.

I've demonstrated that your photo can easily be edited to 1200x800, 300
kB and be quite presentable (it should be noted that there is nothing
particularly great about the image whether at full quality or lesser. It
is "large" in JPG terms because of the patterns in the image.

If you don't use PS you can use any other editor. The JPG quality
scales (depending on the particular app) is typically 1 ... 10, 1...12,
1...100 all with the same relative meaning/effect.

In the end they all have the same basic result: a smaller file and
usually (in the upper range) little or no discernible photo degradation.


That's where we disagree.


You disagree. Most every one else has no issue preparing to the
requirement.

Indeed what you represented as a 2 MB image too difficult to reduce to
300 kB for a 1200x800 image was in fact more than 2x larger in dimension
with a geometric effect on file size. It's as if you don't even grasp
the basic mechanics of the issue.


That was the result of a quick grap at example files without doing
sufficient checking. But I wanted to make the point.

That the effect of which I complaining is real is shown by SavageDucks
two versions of the half-dome.

Regards,

Eric Stevens