NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Venus During the day.
From: Marcel Tschudin
Date: 2010 Sep 11, 18:56 +0300
From: Marcel Tschudin
Date: 2010 Sep 11, 18:56 +0300
Greg, May be its worth to try different settings. Since there will be twilight I would tend to open the aperture. I do however not know whether a different aperture may eventually also have an influence on the calibration which you obtained with F22. I think its just worthwhile to try it. After reading Frank's comment on "Digital camera: stars in daylight" one might eventually also try to use the tif-format instead of jpeg, provided your camera has this option. Marcel On Sat, Sep 11, 2010 at 6:29 PM, Greg Rudzinskiwrote: > Marcel, > > A photo of Venus should be possible for CN purposes at or around sunset for > my current location of 34 north and 119 west (Ho of Venus is below 24 > degrees) but the 50mm camera ISO setting will have to be at least 800 or may > be more combined with a slow shutter speed setting. F22 is the preferred > aperture but might have to open things up there also. The trick will be to > hold the camera steady enough. The up side is that filtering is not needed. > I have my doubts on this challenge but will give it a shot. > > Greg Rudzinski > > ---------------------------------------------------------------- > NavList message boards and member settings: www.fer3.com/NavList > Members may optionally receive posts by email. > To cancel email delivery, send a message to NoMail[at]fer3.com > ----------------------------------------------------------------