Ok, so I am looking at buying a 1.25" 2x Barlow for my new 6" Dob. I've read that if you get a good quality barlow the image should not really be degraded by using the barlow. I realise I can't just get the cheapest barlow I find and expect it to work really well , so I am hoping some of the members here might be able to share their experiences with any GOOD barlows they have come across that were also a really good value. Basicly I need to spend as little as possible - but would rather spend enough to get one that I will be happy with long term. (Of course I you happen to have one to sell you could mention that too.
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Thanks in advance for any advice
Ben