Whoops, That's my fault. Putting words down without thining . . . at any rate, I found out my 4" telescope has an f-stop of f13. This means it's a little less light (1stop) than the moony-11 rule suggests . . .
. . . I was thinking though, for proper exposure, weather a full moon or a 1/4 moon, shouldn't the exposure always use the moony-11 rule? I'm supposed to be measuring the reflected light . . . If I compensate for "less light" of a 1/4 moon, I'll get the dull 3/4 in a good exposure, but the 1/4 that is there will be washed out, right? Illinois Bill Mishka wrote: > what do you mean no aperture? > the telescope *is* the lens. even if it's a reflector, it does have an > aperture (like a big mirror lens). and there goes "moony 11". > or am i missing something? > > ----- Original Message ----- > From: "William Kane" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Friday, April 19, 2002 11:31 PM > Subject: Re: Shooting the Moon > > > Bill, > > > > The f11 rule for the moon only works when I have a lens on the camera. > I > > have the telescope mounted directly to the camera with no lens in between > . . . > > so no aperture. > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
