AstroStan

That image is not really appropriate for high scrutiny, in part because the long 3/5 sec exp captures considerable motion blur that is too easily mistaken for lens aberrations.

This technique is very common in astro-imaging (called LRGB) and is similar to how the human eye/mind integrates [high-res / high-SNR] monochromatic information from the rods with [low-res / low...

It would be relatively simple (though a bit of work) to analyze that video to statistically quantify the activities below (e.g. how many are really engaging with a phone over what time period, etc.).

I was struck by how few people bothered to look up at the drone (mostly a few small children). Is this because:

* most people are oblivious / inattentive?
* this drone is quiet and unobtrusive?
*...

why didn't you criticize "point 49" as well? The "correct" enunciation would be "49 one hundredth"...

Before anyone else derides use of the symbol "x" as somehow not meaning "times" take a minute to educate yourself:
https://en.wikipedia.org/wiki/List_of_mathematical_symbols

Did you ever pay attention in math class?

(the accusations of "stupid" in this forum reflect poorly on the accusers)

those comparisons are subject to intertwined factors that make it very difficult to accurately/fully asses "IQ", esp at high ISO. One of the most confounding factors is varying pixel sizes, which...

" maximum resolution achieved at F1.4..."

Nice!

Optical physics of a simple lens or mirror dictates that larger aperture = superior resolution. But this is only true on-axis for simple lens /...

never mind (when are they going to implement "delete"?)

" It's more about the perception of quality and the beauty of the design... rather than simply being about IQ."

I basically agree. The astro comparison is perhaps nearly as irrelevant as...

"enlighten us"

Don't think that can be done in 1000 characters or less nor do I think anyone is really all that interested in my autobiography. However, I am professional in that I develop...

I meant no disrespect. "Pretty pix" is an extremely common reference to a large segment of the amateur astro-imaging community and it is a proudly worn badge. That designation primarily...

" superb photos in coffee table books that cost about $50"

Why waste money on that when the best astro-images ever are freely available on the web?

BTW HST and Keck cost billions <g>

"insinuations", snide". It looks like you are the one with the psychological problems...

P.S. It is not strictly necessary to spend $30k+ for objectively superior astro-images if you substitute considerable labor. One can still grind, polish and figure a mirror or machine a mount. ...

I'm sure you can produce "pretty pix" using inexpensive equipment (e.g. short focus refractor). But I am referring to objective analysis, such as limiting magnitude and angular resolution. If you...

As a forum observer I knew immediately from the "Leica" in the title that there will be complainers regarding the price. And then there will be the car analogies (Ferrari vs Kia). Here is another...

Perhaps "retro" is a rediscovery of the long evolution of camera body functionality and ergonomics that was maybe too hastily cast aside by digital/computer fixations/fashions. The early...

There are apodizing filters.
Google it. e.g.:
http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=1163