Detail Man

Hi, John. Your posts about your sound reproduction system are interesting. My point was just that any non-linearities that exist (in the initial resonators, or the surrounding structures that then...

My use of the term "artifacts" was probably not well chosen. Indeed, the Bilinear re-sampling algorithm will exhibit less "ringing" than Bicubics, Lanczos, etc. In the case of the more complicated...

Hi, Gordon. Yes, when Ed stated: When you average several pixels together the signal (ADU units) adds directly while noise that is independent adds by the square toot of the sum of squares.  Thus...

What do you think the intended term was ? My impression was that the OP well knew the meaning of the term "cretin" when using it. Otherwise, the OP would seems to qualify as a ... "cretin" ... :P

Or need to use a slower Shutter Speed to realize the same (sensor-level) Exposure, thus resulting in nearly the same Photon Shot Noise (varying only by the square-root of the image-sensor Quantum...

As re-sampling algorithms such as Bicubics, Lanczos, B-Spline, etc. are much more computationally intensive than the Bilinear (2x2 array based) re-sampling algorithm, I suspect that the processors...

The LGV 14-45mm lens has virtually no geometric distortion at all when at 45mm Focal Length. Just looked at a RW2 shot with my GH2 and LGV 14-45mm at 45mm Focal Length. Can tell by switching DxO...

If you research the subject, you will find that Phil Askey of DPReview published, and then removed a web-page asserting the same at one time, and a number of posts on these (if not this very)...

This very recent (Spring, 2013) paper from Lischinski's web-page seems to relate to similar subjects: http://www.cs.huji.ac.il/labs/cglab/projects/lap/ From: http://www.cs.huji.ac.il/~danix/

Thanks for the link to the interesting Luminous Landscape web-page above. Did not find this Lightroom Journal linked paper very digestible for a mathematical lightweight such as...

v1fan wrote: Do you agree that the only usefulness left to still photography is purely in the utilitarian areas such as passport photos, crime scene photos, product photos etc. and photography as...

What happens when non-linearities create difference-frequencies existing below the fundamental ? ;)

When 17 out of 47 posts on a forum are original posts starting new threads, a pattern emerges. :P

Indeed. It's not unusual that those who have little in the way of meaningful knowledge or thoughts to offer others are drawn to modus operandi where they can masquerade as original thinkers and...

I really do not like the 2x2 Chroma Sub-sampling and 90% Quality Factor of the JPEG re-encoding that the DPR Image Viewer has recently been modified to perform in "View at 100%" and "Loupe" modes....

Do you consider yourself an Unctuous Photophobic Pontifex Maximus ? ... :P

Your post-processing of Mik's JPG looks good to me. Much like I might have chosen to suit my own eyes. My posted effort was an effort to generate a bit of a compromise between the two...

Very, very nice stuff, Pete ! It looks like you may have done some cropping on some of them (or the rock structures are very large in size) ? It's hard for me to get a perspective from the images...

GH2 + 14-45mm, FL=21mm, F=5.6, T=1/13, ISO=640, 13.62 Mpixel crop, DxO-7.23: . GH2 + 14-45mm, FL=18mm, F=5.6, T=1/125, ISO=160, 14.22 Mpixel crop, DxO-7.23: . GH2 + 14-45mm, FL=34mm, F=5.6,...

GH2 + 14-45mm, EFL=42mm, F=5.6, T=1/13, ISO=640, 13.62 Mpixel crop, DxO-7.23: . GH2 + 14-45mm, EFL=36mm, F=5.6, T=1/125, ISO=160, 14.22 Mpixel crop, DxO-7.23: . GH2 + 14-45mm, EFL=68mm, F=5.6,...