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Mike, thank you for uploading the article.
Slawomir and Steffen, thank you for your kind words.
Steffen, thanks for mentioning how you deal with dew on your Mak. As I only use my C8 from home, I too use a hairdryer to clean off dew. I also use a dew shield that I made from an old yoga mat I found at a council chuck-out. This DIY shield is very long, and I pull it down over the OTA all the way to the Dec. bearings. I hadn't thought of it much, but the shield usually gives me 2, sometimes three hours dew protection before I need to pull out the hairdryer. After reading your post, I'm guessing that the oversized shield is giving more protection than I thought. As I'm typically pushing the C8 between 250X and 400X with the Moon, I can't say I've noticed the thermal interference that you mentioned after clearing off the dew. I just might be in a bit of a 'zone' and am able to ignore it or work with it until it calms down. The picture below shows my ol' C8 with its yoga-mat dew shield. The bright blue colour doesn't cause me any problems either.
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