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If you have the complete SLT 127, then it will of course track, but being an Alt/Az mount, it will suffer from field rotation, which will show up in your images.
This fact coupled with the fact that the Mak is very slow photographically
makes your setup less than ideal for AP. There are two types of AP that
your setup would be o.k. for. First, video imaging of the moon, sun [with
the appropriate filter], and planets, with a cheap webcam. Many of the best examples are done that way, stack 1000 or so frames in the usual way. Secondly, a few of the brightest DSOs could be imaged by stacking
a lot of exposures that are short enough to not show field rotation.
I imagine that the focal length of your Mak will limit you to around
30 sec exposures. Your scope being so slow, even brighter DSOs may be barely visible on individual frames, but will still be o.k. when they are stacked.
raymo
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