Astrozap Dew Shield

[John]

Because of various troublesome lights in my area, I'd like to add a light shield to the top end of my Meade Lightbridge 12" dob to reduce / stop stray light getting into the upper tube assembly and reducing the contrast of the image.

I'm using an Astrozap light shroud which is very good and I notice the same company do dew shields which could act as effective light shields as well.

As balance on my Lightbridge is an issue I like to keep an eye on, can anyone let me know how much a 12" Astrozap dew shield weighs ?.

Thanks

John