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Thread: Dew shields et al

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    Default Dew shields et al



    Good morning. I am soon to take delivery of a Celestron C90 Mak and I have started reading a number of further reviews which, in a number of cases, talk about the need for dew shields, flocking the baffles, etc etc. In short, it's getting a bit mind-numbing. I live 100km north of Brisbane, only use my scopes in good weather, and am particular about maintenance. Given my locale, it's weather, and relatively low light pollution, do I need to concern myself with dew shields and flocking (love that word) and the like? If so I am sure I will be able to pre-fabricte a shield but the concept of flocking will need further investigation. I welcome any advice.

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    Default Re: Dew shields et al

    Welcome to the forum! You don't have to. Your Mak will still work fine our of the box. Flocking can help a bit with contrast if done right, but it can degrade image quality if done wrong. I would leave it for now.

    Dew shield is completely different story. Even if you don't get dew it will help with contrast. And it is so easy to make. Basically, just make a slightly conical tube. Widee end facing away and narrower end to fit your Mak top. I make them from black 3mm foam sheets.
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    Default Re: Dew shields et al



    I bought the dew shields for my Mak's, although they often get used on other scopes. I don't know what the dewing is like where you are situated. I live in a temperate climate and at certain times of the year dew shields are necessary for my Mak's which don't have integral shields. Some shields have built in heating elements but you would need a powertank or power source. Mak's are seriously prone to dewing, although a dew shield is also useful against stray light.

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    Default Re: Dew shields et al

    A nice little tip on contrast in a Mak: More contrast in a MAK or SCT
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