xpatUSA

When I use an adapted, non-electronic lens on my SD15, I set the camera aperture to be the same as that set on lens aperture ring. The camera aperture setting is recorded in the EXIF - even though ...

Thanks for checking and giving the very good advice. I use sRGB "working space" in SPP5 because I view on a 98% sRGB monitor and I only post as sRGB, assuming that other people's Browsers/Viewer ...

Nice. What's your meaning of "thin negative" in this context, Don? I looked it up but it was a bit like looking up "resolution" ... ;-)

Hello Arvo! I believe but can not prove that SPP converts the X3F raw data into a temporary 16-bit linear RGB scene-related "working file" such as Kodak RIMM or maybe a slightly output-related ...

Nice shots! I'll take your word for it. Only thing I can offer is that, in low res mode, you have double the angle of camera movement for one "pixel". Meaning that there's less potential blur. Bit ...

Good one ... Flash? I like that color and nice and sharp too.

Indeed, too close to call, Steve. Looks like my deduction re: blur diameter was incorrect. :-( Here's plots from ImageJ: but do notice that the x-axes are different. One other difference is that ...

The images are both 1417px tall. Was one of them re-sized?

Perhaps we should all talk about the 35mm equivalent focal length, rather than just "focal length". That way we will be comparing actual angles of view. Pardon my pedantry ...

For those who don't know what "grain merge" in the GIMP is: " Grain merge mode merges a grain layer (possibly one created from the “Grain extract” mode) into the current layer, leaving a grainy ...

Good question. And not forgetting Viewers, for example FastStone can be set to be color-managed or not. Quite useful.

While editing, some operations can take color values outside of aRGB and, more often, sRGB. If the working color space gamut (ProPhoto) is much bigger than either of those, further editing can be ...

Desaturated in the GIMP by Color-to-Grayscale 'Stress' algorithm - lotsa artifacts ... Posted more for the scene than for IQ

Your understanding is definitely NOT correct and, in any case, is much too restrictive! All my work with TIFF images is done in the GIMP or FastStone Viewer in sRGB mode. I also use RawTherapee ...

An excellent question, Steve, and not daft at all! I've written a spreadsheet that calculates blur diameter behind a focused object. Said blur is of course related to DOF. So, with your settings ...

Hello Jeff. The markers are small sealed glass tubes of Tritium gas coated with phosphors inside, see my article: http://kronometric.org/article/lume/#3.5 http://kronometric.org/article/lume/#4.1

I used to fix and re-sell wristwatches, especially U.S. military. Shaky hands put a stop to that. I bought an SD9 and later an SD10. A 50mm Macro and later a 70mm Macro, both excellent - far ...

Good luck with it, Steve. I still remember our games with the battery door on your last one!

Helluva building, Larry! The pano ain't bad, either ;-) There's a good few missions around San Antone but not sure there's any to match that for grandeur.

Good job, Victor! I have often replaced watch springy parts with pieces of guitar string ...