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Hi Anfo,
I purchased my 8" collapsible SW Dob on Friday 19 Jan. Easy to assemble, easy to use and very pleased with viewing to date.
I am 200cm tall and find that sitting on a chair gives an acceptable relaxed position whilst viewing.
The extension tubes "hold their length" without moving. There are three tightening screws to secure the tube at its' correct length. It actually clicks into position. I can't see you ever needing to adjust them. Straight out of the box I didn't need to collimate the SW Dob either.
The tube length of the "straight" 8" dob is obviously permanently longer whilst the advantage for me of the collapsible dob was it's shorter length when stored away or when travelling. Either way they both take up a lot of room and this aspect should not be overlooked.
When I go camping with my new dob I will put down a ground sheet for dust protection. The base is stable and the whole unit is well balanced.
The "push/pull" mechanism is actually smoother than I imagined.
In my package was 2 eyepieces --- a 25mm (gives 48x magnification) and a 10mm (120x). To date I have spent all my time using the 48x ep looking at the moon. Now ready to move up to 120x on next clear night.
I only went to one shop when looking at a Dob so I am unable to comment on different manufacturers. The quality control on the SW impressed me but I did have stars in my eyes!
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