the sun image looks like it was done with a 20 stop ND filter. there is no foreground visible. everything is black. they would shoot each one of the sun and foreground separately and add. the masking would be done in Photoshop or equivalent. it is the NASA and they do tend to write their own image processing programs.
Herb... ----- Original Message ----- From: "graywolf" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, December 30, 2003 8:05 PM Subject: Re: Multiple exposure shot over course of the year > You know about matt boxes? A mask is made for the forground. The shots of the > sun are made each day with the mask in place, then a sky mask is made and the > forground is shot. Camera is probably mounted on a concrete pillar (that is how > you do construction record shots), so it will always be in exactly the same > place for the sun shots. You can shoot the forground anywhere. Now a days they > probably would shoot the forground shot, and do the sun shots on another sheet > of film, digitalize then combine in Photo Shop.
