Nightime

[lostcoyote]

(not the best scan off a 4x5 neg but it'll serve the purpose.... show pictures taken in the sierras [or elsewhere] that include astronomical objects)

[John Dittli]

Mather pass Kodachrome, April '82

[John Dittli]

Halfdome moon glow (two exposures)

[John Dittli]

Starry sky, Oha Ridge, Little Round Valley

[lostcoyote]

Starry sky, Oha Ridge, Little Round Valley

i like this one.
very nice john.

question, can the modern DSLR's do long exposures (like 6-8 hours such as the one below?)



the next range over - bristlecones in the whites with a few hours of moonlight
(4x5 ~ 8 hours@f5.6)

[John Dittli]

Thanks Paul. Wow, 8 hrs!?
Yes, the canon dslr are traditional bodies; ie I can put the shutter on bulb and create as long exposure as the battery will allow. I haven't tried it though, so I'm unsure of the output quality. Something to try.

Here's one of the "other range" with a different astronomical object.

JD

[rlown]

the sheer beauty isn't lost here on the uninitiated. my P*S, er POS won't do that, though i wanted to see the stars spin a million times..

Thanks for sharing,

Russ

PS: JD that last one was just spectacular!!

[lostcoyote]

Thanks Paul. Wow, 8 hrs!?
Here's one of the "other range" with a different astronomical object.

yep, and the first one on the bighorn plateau up above is ~ 6-7 hours, again, with a few hours of moonlight. the best part - i get to sleep through the exposure!

nice image of the moon & clouds.
did i see a color version of that somewhere in your internet archives?

[maverick]

Lostcoyote asks: "question, can the modern DSLR's do long exposures (like 6-8 hours
such as the one below?)".
Yes they can, but, you need to be in a cooler environment otherwise internal heat
will cause a lot of noise, but photo's taken at higher elevations this should not be an
issue because the temps should drop, though 30 degrees, and lower are best.
Keeping the ISO under 800 is advised because of excessive noise for long exposures
also for such a long exposure you would need an external power source, like a portable
battery pack.
Some of the newer camera's can make quite good photo's at ISO 3200, but I would
not go much higher, or you can use a time lapse sequence like this guy did:
http://www.fredmiranda.com/forum/topic/925423" onclick="window.open(this.href);return false;

[lostcoyote]

another option
(using an electronic timer & post processing software to edit the still shots together)

http://www.youtube.com/watch?v=Ir2ISR-XjD4" onclick="window.open(this.href);return false;
http://www.youtube.com/watch?v=J8yTzDZPhhE" onclick="window.open(this.href);return false;
http://www.youtube.com/watch?v=5YQEOT9yARk" onclick="window.open(this.href);return false;

anyway, back to topic



(obviously, a double exposure - some folks like it while others will not - for 1 thing, the shadows do not coincide with sun position)