|
They need a quite bright guide star to work properly. There was a review recently in Sky and Telescope. It was what they didn't say that was revealing as they gave it their usual thumbs up. I just don't trust s&t for a frank review as their mag has declined in size,relevance and critical articles these days that they are dependent on their advertisers too much. Just my 2c opinion.
Last edited by allan gould; 17-03-2011 at 07:38 PM.
|