Tough job for a small sensor
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1.  John Navas  
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 More options Nov 30 2007, 1:12 pm
Newsgroups: rec.photo.digital
From: John Navas <spamfilt...@navasgroup.com>
Date: Fri, 30 Nov 2007 02:12:12 GMT
Local: Fri, Nov 30 2007 1:12 pm
Subject: Tough job for a small sensor
FZ8, JPEG Fine, ISO 100, 1/640 @ f/4, AP auto exp, 114 mm (35 mm equiv),
hand-held; Noise Reduction, Contrast and Sharpening set to Low;
compressed to Quality 8 with Photoshop for hosting full res:
<http://img519.imageshack.us/my.php?image=p1040091q8yu8.jpg>

--
Best regards,
John Navas
Panasonic DMC-FZ8 (and several others)


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2.  Mr. Strat  
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 More options Nov 30 2007, 1:33 pm
Newsgroups: rec.photo.digital
From: "Mr. Strat" <r...@nospam.techline.com>
Date: Thu, 29 Nov 2007 18:33:41 -0800
Local: Fri, Nov 30 2007 1:33 pm
Subject: Re: Tough job for a small sensor
In article <d8suk35pqpv39j24v5s3kmk5bflqg6v...@4ax.com>, John Navas

<spamfilt...@navasgroup.com> wrote:
> FZ8, JPEG Fine, ISO 100, 1/640 @ f/4, AP auto exp, 114 mm (35 mm equiv),
> hand-held; Noise Reduction, Contrast and Sharpening set to Low;
> compressed to Quality 8 with Photoshop for hosting full res:
> <http://img519.imageshack.us/my.php?image=p1040091q8yu8.jpg>

Nice burnt highlights. Glad to see that histogram is doing well for you.

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3.  Alfred Molon  
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 More options Dec 1 2007, 9:01 am
Newsgroups: rec.photo.digital
From: Alfred Molon <alfred_mo...@yahoo.com>
Date: Fri, 30 Nov 2007 23:01:58 +0100
Local: Sat, Dec 1 2007 9:01 am
Subject: Re: Tough job for a small sensor
In article <291120071833417974%...@nospam.techline.com>, Mr. Strat
says...

> Nice burnt highlights. Glad to see that histogram is doing well for you.

If you saw what DSLR images Roger posts to his site you would say "nice
burnt shadows".
--

Alfred Molon
------------------------------
Olympus 50X0, 7070, 8080, E3X0, E4X0 and E5X0 forum at
http://tech.groups.yahoo.com/group/MyOlympus/
http://myolympus.org/ photo sharing site


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4.  David J Taylor  
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 More options Nov 30 2007, 7:43 pm
Newsgroups: rec.photo.digital
From: "David J Taylor" <david-tay...@blueyonder.not-this-bit.nor-this-bit.co.uk>
Date: Fri, 30 Nov 2007 08:43:47 GMT
Local: Fri, Nov 30 2007 7:43 pm
Subject: Re: Tough job for a small sensor

John Navas wrote:
> FZ8, JPEG Fine, ISO 100, 1/640 @ f/4, AP auto exp, 114 mm (35 mm
> equiv), hand-held; Noise Reduction, Contrast and Sharpening set to
> Low; compressed to Quality 8 with Photoshop for hosting full res:
> <http://img519.imageshack.us/my.php?image=p1040091q8yu8.jpg>

Site seems to be down from here.

David


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5.  mark.thoma...@gmail.com  
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 More options Nov 30 2007, 9:25 pm
Newsgroups: rec.photo.digital
From: mark.thoma...@gmail.com
Date: Fri, 30 Nov 2007 02:25:04 -0800 (PST)
Local: Fri, Nov 30 2007 9:25 pm
Subject: Re: Tough job for a small sensor
On Nov 30, 6:43 pm, "David J Taylor" <david-tay...@blueyonder.not-this-

bit.nor-this-bit.co.uk> wrote:
> John Navas wrote:
> > <http://img519.imageshack.us/my.php?image=p1040091q8yu8.jpg>
> Site seems to be down from here.
> David

Yes, it's obviously completely beyond the capability of that camera -
given the link doesn't work...  (O:

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6.  John Navas  
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 More options Dec 1 2007, 8:29 am
Newsgroups: rec.photo.digital
From: John Navas <spamfilt...@navasgroup.com>
Date: Fri, 30 Nov 2007 21:29:34 GMT
Local: Sat, Dec 1 2007 8:29 am
Subject: Re: Tough job for a small sensor
On Fri, 30 Nov 2007 08:43:47 GMT, "David J Taylor"
<david-tay...@blueyonder.not-this-bit.nor-this-bit.co.uk> wrote in
<73Q3j.55385$c_1.50...@text.news.blueyonder.co.uk>:

>John Navas wrote:
>> FZ8, JPEG Fine, ISO 100, 1/640 @ f/4, AP auto exp, 114 mm (35 mm
>> equiv), hand-held; Noise Reduction, Contrast and Sharpening set to
>> Low; compressed to Quality 8 with Photoshop for hosting full res:
>> <http://img519.imageshack.us/my.php?image=p1040091q8yu8.jpg>

>Site seems to be down from here.

Not the site, but that particular server, so I've replaced the image:
<http://img139.imageshack.us/my.php?image=p1040091q8fr5.jpg>

--
Best regards,
John Navas
Panasonic DMC-FZ8 (and several others)


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7.  David J Taylor  
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 More options Dec 1 2007, 5:43 pm
Newsgroups: rec.photo.digital
From: "David J Taylor" <david-tay...@blueyonder.not-this-bit.nor-this-bit.co.uk>
Date: Sat, 01 Dec 2007 06:43:29 GMT
Local: Sat, Dec 1 2007 5:43 pm
Subject: Re: Tough job for a small sensor

John Navas wrote:
> On Fri, 30 Nov 2007 08:43:47 GMT, "David J Taylor"
> <david-tay...@blueyonder.not-this-bit.nor-this-bit.co.uk> wrote in
> <73Q3j.55385$c_1.50...@text.news.blueyonder.co.uk>:

>> John Navas wrote:
>>> FZ8, JPEG Fine, ISO 100, 1/640 @ f/4, AP auto exp, 114 mm (35 mm
>>> equiv), hand-held; Noise Reduction, Contrast and Sharpening set to
>>> Low; compressed to Quality 8 with Photoshop for hosting full res:
>>> <http://img519.imageshack.us/my.php?image=p1040091q8yu8.jpg>

>> Site seems to be down from here.

> Not the site, but that particular server, so I've replaced the image:
> <http://img139.imageshack.us/my.php?image=p1040091q8fr5.jpg>

Thanks for reposting, John.

All the detail in the foliage at the back is lost - possibly due to the
noise reduction.  Nice photo, though.

Cheers,
David


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8.  mark.thoma...@gmail.com  
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 More options Dec 1 2007, 7:55 pm
Newsgroups: rec.photo.digital
From: mark.thoma...@gmail.com
Date: Sat, 1 Dec 2007 00:55:55 -0800 (PST)
Local: Sat, Dec 1 2007 7:55 pm
Subject: Re: Tough job for a small sensor
On Dec 1, 4:43 pm, "David J Taylor" <david-tay...@blueyonder.not-this-

bit.nor-this-bit.co.uk> wrote:
> John Navas wrote:
> ...
> > <http://img139.imageshack.us/my.php?image=p1040091q8fr5.jpg>
> ...
> All the detail in the foliage at the back is lost - possibly due to the
> noise reduction.  Nice photo, though.

> Cheers,
> David

It is a nice *scene*, but as David notes, the foliage has lost a large
amount of detail, and as Mr Strat notes, the highlights are a touch
over (although that isn't a big deal)..

It is not a technically good image - even at the reduced size, the
foliage is clearly (heh!) mush, and detail is completely obliterated
in the darker areas (ie almost all of the background).  A large print
of that image would not be a good idea.  Yet a DSLR, competently
handled, would have sailed through this test with flying colours.  Pun
intended..

That type of low-contrast fine detail is a indeed a tough test for
digitals - especially small sensored ones - and this one has failed
the test.

To get better results, you could use a better camera (O:, but if that
isn't an option:

- shoot in RAW.  That way you do not lose any more detail to jpeg
compression or noise reduction (depending on the camera), and also you
will improve the dynamic range - this scene clearly needs all the
dynamic range it can get.

- watch your post-proc very carefully.  *Selective* noise reduction
can help (ie *don't* apply NR to foliage areas!), and also watch any
gamma/brightness/contrast adjustments - working in 16-bit, at least
initially, may also help.

Just trying to help...  In a couple of years time, assuming you get
good at this imaging stuff, come back and re-visit this image...  At
the moment I think you may be a little emotionally attached.  (O:*

(* I'm allowed to be unkind if I put a smiley there - John said.)


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9.  mark.thoma...@gmail.com  
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 More options Dec 1 2007, 9:30 pm
Newsgroups: rec.photo.digital
From: mark.thoma...@gmail.com
Date: Sat, 1 Dec 2007 02:30:35 -0800 (PST)
Local: Sat, Dec 1 2007 9:30 pm
Subject: Re: Tough job for a small sensor
On Dec 1, 6:55 pm, mark.thoma...@gmail.com wrote:

> - watch your post-proc very carefully.  *Selective* noise reduction
> can help (ie *don't* apply NR to foliage areas!), and also watch any
> gamma/brightness/contrast adjustments - working in 16-bit, at least
> initially, may also help.

And just to show I'm not *all* mouth... here's an example of an image
with a similarly wide (probably wider) contrast range, shot on a
similar (but, imo, better) prosumer
:
http://www.marktphoto.com/examples/pano2_small.jpg

(Note -it's a *large* panoramic image - 1.4Mb jpg...)

It was shot in RAW, and I (crudely!) used selective noise reduction.
Note the foliage detail in the dark areas compared to John's.  Yes,
it's somewhat *noisy* detail, but it's .. *there*.

I am very happy to post a full-resolution crop if anyone wants one.


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10.  John Navas  
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 More options Dec 17 2007, 2:36 am
Newsgroups: rec.photo.digital
From: John Navas <spamfilt...@navasgroup.com>
Date: Sun, 16 Dec 2007 15:36:49 GMT
Local: Mon, Dec 17 2007 2:36 am
Subject: Re: Tough job for a small sensor
On Sat, 1 Dec 2007 02:30:35 -0800 (PST), mark.thoma...@gmail.com wrote
in <4cdb3884-8da8-459f-a0de-d97c67159...@d21g2000prf.googlegroups.com>:

>On Dec 1, 6:55 pm, mark.thoma...@gmail.com wrote:
>> - watch your post-proc very carefully.  *Selective* noise reduction
>> can help (ie *don't* apply NR to foliage areas!), and also watch any
>> gamma/brightness/contrast adjustments - working in 16-bit, at least
>> initially, may also help.

>And just to show I'm not *all* mouth... here's an example of an image
>with a similarly wide (probably wider) contrast range, shot on a
>similar (but, imo, better) prosumer
>:
>http://www.marktphoto.com/examples/pano2_small.jpg

Totally different image, and too shrunk to make any real assessment
possible.  Don't you have anything else?

--
Best regards,
John Navas
Panasonic DMC-FZ8 (and several others)


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