Kinon O'Cann <> wrote:
> "SimonLW" <> wrote in message
> news:4510fe18$...
>> "Kinon O'cann" <Yes.it's.me.Bowser> wrote in message
>> news:. ..
>>> Brett,
>>>
>>> Granted, this shot is not an artistic success, or even interesting, but
>>> it does illustrate the amount of detail you can capture with the 5D and a
>>> good lens:
>>>
>>> http://home.comcast.net/~xelbon/gauges.jpg
>>>
>>> This is a 2.5M file. Shot at ISO 400 RAW, processed using ACR, and some
>>> very light sharpening (25% Smart Sharpen) applied. No other adjustments.
>>> Lemme know what you think.
>>>
>>
>> Good god that photo had the living hell sharpened out of it!
>
> Uh, no it didn't. I opened it in ACR using the defaults, and then applied
> Smart Sharpen at 25% to clean up the lines a little. It is not
> oversharpened. Do you see any artifacts to indicate oversharpening?
25% blending of what pixel radius, on lens sharpening or Gaussian
sharpening? Just the percentage doesn't say anything useful. If you
used a huge (say, larger than 2.0) pixel radius, it won't matter that
you only blended it in 25% -- the artifacts will still be visible (and
I'm seeing them too, primarily around the reflections on the gauges).
Gaussian "smart sharpen" is exactly the same as USM, by the way.
My default sharpening on all but my sharpest glass is 75% of 1.0
pixels, lens sharpening, sometimes going up at most to 2.0 on my worst
lens (the 75-300 needs quite a bit of help at the long end), but using
70% of 0.6 pixels on a prime. If I resize for the web, I'll sharpen
again, Gaussian, 50% of 0.3 pixels just before saving to counteract
softness caused by the resize.
On selected images with people, I sometimes create a duplicate layer
first, sharpening the background minimally and then massively
oversharpening the duplicate, using a layer mask to blend in only the
eyes from the heavily sharpened layer. That often represents a
correction of a screwup on my part during shooting, though.
I generally don't see artifacts with those numbers, but be warned that
one of my photobuddies still thinks I'm overly aggressive on my
sharpening. He almost never sharpens past 50% of 0.5 pixels, I think,
but he also owns more L and prime glass than I do.
--
Zed Pobre <> a.k.a. Zed Pobre <>
PGP key and fingerprint available on finger; encrypted mail welcomed.