I thought that you made your point with the last post, but when I click
on the new links I get a "Forbidden" error page, not even the 403 error
number...
On 7/21/2013 4:18 PM, Aahz Maruch wrote:
On Sun, Jul 21, 2013, Bruce Walker wrote:
On Sun, Jul 21, 2013 at 2:32 PM, Aahz Maruch <[email protected]> wrote:
On Tue, Jul 16, 2013, Bruce Walker wrote:
On Tue, Jul 16, 2013 at 3:43 PM, Aahz Maruch <[email protected]> wrote:
On Tue, Jul 16, 2013, Bruce Walker wrote:
Zos, eyebrows are my litmus test for system sharpness. Get a well-lit
headshot of somebody and examine their eyebrows. You should clearly
see the individual hairs. Any time I handhold to get such a shot the
eyebrows are invariably a gaussian smear. You cannot do clean
retouching of such images.
I can show you a 100% crop of my model's eyebrows from the last beauty
shots I took using a tripod with my K20D and DA* 50-135. Clear, sharp,
detailed. I defy you to get that clarity handheld, no matter the
shutter speed.
Let's make sure we're testing the same thing. What percent of frame
should the person's head be? Any other requirements?
You want this to be scientific? This is The Internet. :-)
Not necessarily "scientific", but at least evidence-based. ;-)
Well, the shot I have In Support of Tripod Use is this recent one:
http://flic.kr/p/f2Kebj
Obviously head fills the frame, landscape. Camera was about 8-9 feet
away, 135mm at F8.0, ISO 200.
Here's a 100% crop of her right eyebrow and eyelashes:
https://dl.dropboxusercontent.com/u/2254722/PDML/BMW_8026-crop.tif
It's an 8-bit TIFF, exported from the original RAW shot in Lightroom
4. Lr's default zeroed settings except WB: flash and the default RAW
sharpening of 25.
This is a sucky shot, but hopefully enough to disprove your point. Nikon
P7100 (10MP), mirror selfie, arm braced on door frame, 61mm (35mm/e), ISO
100, 1/25s. Converted from RAW in Preview.app (essentially no editing).
http://rule6.info/photos/critique/eyebrow/eyebrow_headshot.jpg
http://rule6.info/photos/critique/eyebrow/eyebrow.tiff
A better and/or newer camera with a higher shutter speed and better
lighting would certainly improve things, as would tighter composition.
Yes, that's really nice and sharp brows, but you cheated there. By
bracing yourself on the door you've improvised a tripod with two legs
and a doorframe. ;-)
Handheld is handheld ...
Personally, I think that holding off-center one-handed at 1/25 counters
the arm brace, but anyway:
http://rule6.info/photos/critique/eyebrow/eyebrow2_headshot.jpg
http://rule6.info/photos/critique/eyebrow/eyebrow2.tiff
Now it's the Canon G1X (14MP, so more comparable with your K20D), 1/100,
112mm (35mm/e), shot two-handed with the LCD (zero body bracing). Person
I'm shooting doesn't have eyebrows, so look at the hair. ;-) The JPG is
cropped to portrait from landscape (mainly to save bandwidth).
The K-5 at 1/500 and a nice lens ought to do really well...
To be clear, I'm not claiming that a tripod isn't better, just that one
can get sharp shots handheld even with moderately low shutter speeds.
(Maybe you can't, though I'd bet that you could with 1/2000, that freezes
most things. I really appreciated 1/5000 on the cruise.)
--
There are two kinds of computer users those who've experienced a hard drive
failure, and those that will.
--
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow
the directions.
