Skip to content

Tag Archives: autoguiding

Andromeda galaxy (M31)

Monday, September 14, 2009

A stack of four 10 minute exposures at iso400 through a 200 mm F5.6 lens. I really need to get a handle on processing these RAW frames for best results... Autoguiding now seems to work quite well, here's a comparison between 10 min frames with guiding on/off: More exposure is better, this one has about [...]

Filed in Astro | Also tagged | Comments (0)

Needs Guiding

Monday, January 5, 2009

An 8 minute exposure through a 200mm lens. Unguided EQ-6 mount. With this mount and my polar-alignment skills it seems that a 60s exposure is the maximum achievable at 200mm. I have a QHY5 guide-camera and a 500/5.6 Rubinar which I plan to use for auto-guiding which will (I hope!) put an end to the [...]

Filed in Astro | Also tagged | Comments (1)

Rubinar 500/5.6

Wednesday, November 19, 2008

I've bought a second hand Rubinar 500/5.6 . The plan is to use it for auto-guiding my EQ6 mount using something like the QHY5 camera, but the lens should also be fun to play with for normal telephotography. Miloslav Druckmuller has a good example of astrophoto-use for this lens, and there are many more examples [...]

Filed in Astro | Also tagged , | Comments (0)