Thanks for the tips, Bruce!
I really don't know jack-squat about luminance and color noise, and
haven't spent as much time learning LR as I should have. I just haven't
taken many shots lately.
As for the update, I've actually downloaded it but just keep putting off
the installation -- because I procrastinate over stupid things, and
that's about it. :)
I guess I'll install it now, since you've got me thinking about it.
Thanks again!
-- Walt
On 11/5/2012 5:10 PM, Bruce Walker wrote:
That makes sense, Walt.
But try setting the Luminance NR to a small number, like 10 or 15,
then set the Colour NR quite high, like 50 to 100. I'd try 100
actually.
The brain doesn't register softness in colour values, but it can spot
detail loss in the luminance a mile away. Setting NR with a low
Luminance and high Colour will minimally affect sharpness but get rid
of that nasty colour noise and leave you with film-like grain.
The other thing you can do "recover" detail loss in a noisy shot where
you were forced to aggressively noise-reduce is to move the Clarity
slider up to around 30-40. That increases mid-tone contrast and gives
apparent sharpness to the image without boosting shadow noise
appreciably.
BTW, your EXIF says you have Lightroom 4.0. You should apply the free
4.2 update to that. It's got many fixes and is an overall performance
win -- certainly no slower.
On Mon, Nov 5, 2012 at 3:11 PM, Walt <ldott...@gmail.com> wrote:
It was really low light and the shot was pretty underexposed, so I did some
exposure correction on it. I didn't want to do too much noise reduction for
fear of softening what detail remained within all the noise.
It was a completely unplanned shot I grabbed just after I walked in from
outdoors looking for shots that would have good detail (empty-handed) and he
greeted me that way -- which is how he lets you know he wants to go outside.
I just set the aperture to wide-open and took a few quick shots before he
decided to start doing all the other things he does to get attention.
Pretty much, it was a shoot-from-the-hip lens test, just to see what "soft
wide-open" means in practical terms.
I am looking forward to using it in good light based on what I've seen,
though.
Thanks for the input!
-- Walt
On 11/5/2012 1:55 PM, Bruce Walker wrote:
Very nice, Walt.
But that is one hell of a lot of noise, especially colour noise, for
ISO 320 on the K20. It looks like what I'd expect from a P&S. I don't
get noise like that until ISO 6400 on my K20.
Was it way underexposed? Did you do a lot of lightening of shadows?
Did you leave a zero off the ISO number? :-) Did you enable some NR in
Lightroom? You likely need at least 15 Luminance. The default is 0
which is NR off.
And shoot in better light with good exposure and be *really* amazed
with the sharpness. Noise levels like this cause much more softness
than the lens ever will.
On Mon, Nov 5, 2012 at 12:20 PM, Walt <ldott...@gmail.com> wrote:
So, I got that FA 50/1.4 Mr. Desjardins selling over the weekend, and
I've
finally taken a shot with it. One of the few knocks against it was that
it's
soft wide-open. So, I decided to test it out. Here's what I got after
just a
tiny bit of processing:
http://www.flickriver.com/photos/walt_gilbert/8158277158/
K20D, f/1.4, 1/125 sec, ISO 320
It ain't /that/ damned soft!
I think I'm going to really, really love this lens.
Many thanks to Steven!
-- Walt
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