Re: Astrophotography w/ Digital SLR Sensor Sensitivity

Billy wrote:
I recently began taking images of stars from my Nikon D300 digial SLR
and I'm amazed - when I take the picture I can many more stars in the
image than I can with the naked eye. Does anyone know why this would
happen, could the image sensor be stronger than my eyesight?????

This isn't just a "digital" thing - exactly the same thing happens (fortunately!) with film.

I have only ever seen (visually - not photographically) the Coal Sack nebula a couple of times - these when I've been way out bush with carefully dark-adapted eyes - yet I have managed to photograph it (film) from my heavily light-polluted Sydney suburban backyard.

It takes exposures of only a couple of seconds to make naked-eye-invisible stars appear on film.

One of the reasons I enjoy astrophotography so much.

Hint: in order to increase your astro fun, google: "barn door mounts"

--
Jeff R.

.

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