Off axis guiding

[libraryman]

I'm currently guiding using a guide scope, quite successful I might add..

but...I'm looking at guiding with longer focal lengths and off course off axis wins out here, I use a QSI 583 wsg so it has the off axis capability and with my qhy5L-ii mono it's a good system potentially.

What prevents me from switching over completely to off axis is the filter offsets between my Astrodon nb filters and my astronomik lum filter...

my question is: how do imagers find the issue of offsets in off axis guiding?

i generally only use my lum filter for plate solving and focusing so that's not a major issue, but Sgpro doesn't yet allow me to pause guiding during focus etc

Ray 

 

 

[daz]

Hi Ray

SGPro DOES allow you to pause guiding during autofocus - its under the Auto Guide tab in the Control Panel.

Once you have the offsets set up, it works very well 

[sloz1664]

Hi Ray,

Are you assuming the offsets will affect the guide star focus. If that's the case you needn't worry. It deos not affect guiding at all. In fact guiding on a slightly defocused star is beneficial.

Steve

[libraryman]

O.k folks cheers for the replies, I have got pause guiding ticked so to speak, but it doesn't work for me! Odd....I'll recheck it out..

yes it is the focus I bother about, my offset is quite large between the Astronomik lum filter and my 3 nm Astrodons.

Ray