Help with Moon At Primefocus

[Taff]

Hi Can anyone help me out.While taking captures' of the moon at prime focus through a 90mm refractor last night.After putting the captures on the pc all i had was a round light through the clouds.What is the best iso settings at prime focus for the moon Thanks.Mark

[roundycat]

when you take a picture of the moon remember it is in daylight. What exposure would you give something in the middle of the Sahara desert? Try ISO 200 and about 1/250 at f8.

Dennis

[jgs001]

Mark, I'm not sure what camera you have (I can't remember, I'm sure you mentioned it before sorry), but if you can, set spot metering and then you can meter on the moon. Set to the lowest ISO the camera can use. Aim to underexpose the shot a little, 1/3 or 2/3 below seems to work best. And shoot in RAW. That's the focal ratio or the focal length of your scope ?

[Taff]

Hi' Thanks for your reply and help.Mark