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Taken 13-Feb-12
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7 of 13 photos
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Photo Info

Dimensions1200 x 1600
Original file size845 KB
Image typeJPEG
Color spacesRGB
Date taken13-Feb-12 16:13
Date modified10-Jan-13 14:34
Shooting Conditions

Camera makeCanon
Camera modelCanon PowerShot A3300 IS
Focal length5 mm
Max lens aperturef/2.8
Exposure1/400 at f/2.8
FlashNot fired, auto mode
Exposure bias0 EV
Exposure modeAuto
ISO speedISO 160
Metering modePattern
Digital zoom1x
Imaging setup

Imaging setup

To improve image tracking, in 2010 a pier was installed through the 'porch' floor. This carries an Orion Atlas mount which is driven by the venerable SBIG STV guider. Two telescopes are carried on the mount, an Orion 8" Ritchie-Chretien Astrograph and the 4" Borg apo. This arrangement has worked out well. To image smaller objects such as M13 the 8" at f8 is used while the 4" guides. For wider field and extended objects, the Borg is used in f4.3 and f6 modes while the 8" guides. In either case automatic guiding is bang on, ensuring reliable tracking.