For something different I would like to try my hand at a little observing using an old fashion Achro - but something with a long focal length to appreciate the depth of focus issues that are sometimes debated in the field of optics and their design.
I am completely open to any suggestion/offers although I don't think I can afford any collectors restored Unitrons etc. Open to size but would prefer something between the 80-100ish diameter.
If you have any suggestions or something you don't use anymore please send me a PM
Just a slight clarification - in our modern world of short fl APOs when I refer to something that is 'long' fl I am thinking of something perhaps around f11/f12 or possibly even more.
Perhaps I am pushing the wrong buttons but as an experiment I went to the check-out to try and buy and thus see what shipping might be - when it came to picking the country for international delivery Australia wasn't amongst the list!
Two emails and some time to the good people at Stellavue and still no response. I suspect it has already been sold and they simply haven't had an opportunity to update their website.
So - still looking for a long FL Achro if anyone has one they might considering parting with.