On 2 Sep 1999, Christopher Biggs wrote:
:Acer Victoria <siddim01@xxxxxxxxxxxxxxx> moved upon the face of the 'Net and
spake thusly:
:
:> I never remember to get something from the library. So, anyone know what
:> shutter/aperture settings to use to capture constellations or just
:> the> night sky? I'm currently loaded with my last or second to last roll
:> of Superia 400 (after that, I'm going E6). The night skies are getting
:
:Stars are a point source---f/stop is irrelevant (you will be
:assimilated)---all that matters is physical diameter of the aperture.
:(Paging Michael Covington).
So the faster the better to minimize trailing (assuming I want points).
:Do you wont trails or points? For points you have to keep the
:exposure fairly short. Using a 45mm lens, I got slight trails from
:10s upward. Longer lens would trail sooner.
:
:Using same 45mm lens, f/8 and 100ISO Ektachrome, 10s produced
:wonderful colours and barely noticeable trailing.
So with 400ASA, 50/1.4MC wide open, I can shoot at 1/15sec and get points?
Do you advise wideopen or stopped down lens? Uhm, colors? What colors? If
I try /really/ hard, I can see some stars a just a /wee/ bit red, and
others are /wee/ blue; is that what you referred to? On a slide? Yow.
:> (1.4MC 1.8MC 3.5MC macro) and the 200/4. I'm thinking of starting with the
:> 1.8. 30seconds sound OK for wide-open 50/1.8?
:
:Expect trails around 1-2cm long on a 10x15cm print if you expose for 30sec.
Not bad.
:Anything from 2 seconds to 6 hours will do. You will have to LART the
:lab beforehand or they'll say "there was no image on your negs".
Yea; last roll had nine bracketed exposures of a full moon in
clouds and the resulting halo. In big bold capital letters I printed
"please do not correct; print 18 0rey; bracketed exposures, print
UNCORRECTED". Went to the big Fuji place. Yup, no prints. The negs show
the moon, but not the lighted clouds, for some reason. I went 1/500 and
all the stops from 1.8 to 16 on the 50 and one with 200/4 and another
with the 2XA+200. Odd. And I've reached the point where I'm sick of the
lab !@#$%^& to the printer's whims. I want WYSIWYG.
/Acer "steppenwolf" Victoria
--
"And time yet for a hundred indecisions / And for a hundred visions and
revisions." --/Prufrock/
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