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OK so I went out and bought one of these here in Colac. Firstly the good new.
-These appear to be made by Bresser, who at least are a known telescope
manufacturer
-They appear to be superior to the little dobs that Aldi sells from time to time
- Appear to at least partly collimated
- Have a fork mount which is better than the useless dob mounts that they sell (there is simply not enough weight in these scopes to make the dob mount useful
- Has a reasonably good instruction book
- Has large warning labels to say that the filter must be in place to do solar observing
Bad news!
The filter is a plastic rim with a film filter. The plastic rim push fits inside the tube. So I have a couple of concerns:
- The filter is only a push fit, so could easily be removed or if not push in all the way, could blow off or be knocked off.
- The tube is black, so on a sunny day will warm up, expand (potentially) and create a looser fit
- The filter itself has no warnings about checking to make sure it has no holes etc that would render it unsuitable
So while it is not as bad as it could be ( I am actually keen to try it out for night time use) I remain convinced that it is a potentially dangerous product.
Malcolm
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