On Sun, Jul 21, 2013, P.J. Alling wrote: > > 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...
Sorry about that, fixed now. I thought I made my point, too, but Bruce didn't, so I figured I might as well give it another go. > 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 <a...@pobox.com> wrote: >>>>On Tue, Jul 16, 2013, Bruce Walker wrote: >>>>>On Tue, Jul 16, 2013 at 3:43 PM, Aahz Maruch <a...@pobox.com> 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.) -- Hugs and backrubs -- I break Rule 6 http://rule6.info/ <*> <*> <*> Help a hearing-impaired person: http://rule6.info/hearing.html -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
