[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: [APML] Re: E200 star image size.

> Here is the URL to my film test results, which have
> the links to the E200
> and Provia400 std and pushed near the bottom of the
> page.  [...]

Sorry... i don't understand the results very much. =(
If i have a 15min exposure with E200+2, how much time
is required for the same results without pushing?


I used Covington's exposure calculator with
Schwarzshild exponent 0.95 for E200 and 0.9 for P400F.
The results when changing the ISO from 200 to 640
(E200) and 400 to 1600 seems quite good. Or am i doing
things wrong?


=====
Regards,

Carlos Milovic F.
-------------------------
Astro & Photo - CMF
http://www.astrophoto.vze.com
-------------------------
Visita "AstroFoto", el foro de astrofotografía en español
http://espanol.groups.yahoo.com/group/astrofoto

___________________________________________________
Yahoo! Messenger - Nueva versión GRATIS
Super Webcam, voz, caritas animadas, y más...
http://messenger.yahoo.es
_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo