24hrexposure

I like the juxtaposition of building styles. Nice photo.

(that's the joke)

Guess I can't use my f1.4 zoom...

I'd be pretty unhappy with timelapse videos that looked that choppy. Some of the apps offer manual exposure control, but the killer features would be smart bulb ramping and shutter angle control. Even better would be a mode that uses autoexposure and shoots as fast as possible, rendering multiple shots into one frame to get the right frame rate. This would support phones that have neither physical aperture control nor good enough dynamic range to fiddle with the ISO (i.e. almost all current phones).

Lovely. The moving flags really make the shot.

Very nice detail

Thank you for the kind comments! A lot of legwork went in to this photo and I'm glad you guys like the final result.

Very nice. I really like the B&W conversion.

This photo is perfectly fitted to the challenge. It has a lot of detail and repetition, and just enough variation to make the puzzle hard but doable. Nice work, and good choice to submit it.

Just to avoid confusion, do you mean ONLY the temple called Angkor Wat, or the complex of temples around Siem Reap?

Does "filters" mean physical filters or Instagram?

A 10-stop ND on a very wide lens would show serious vignetting because of the harsh angle near the edges. The effective stops increase with 1/cos(angle of view), so near the edges of the image where the light comes in at 45 degrees a 10-stop is effectively a 14-stop filter.

It would have to be graduated from the center outward to counteract the vignetting, and would only be usable on a narrow selection of focal lengths because of this. I think it makes more sense on most wide-angle lens designs to put the filter on the rear of the lens since they're usually retrofocus, eliminating the vignetting, but don't know of any lenses that offer this feature.