Moon filters

[bomberbaz]

Is that what the bung is for? I really had no idea, in fact, I never thought of it before.

otr you can make an aperture mask. On a dob you would simply cut a circle of carrdboard to fit where the cover would go making it a tad overlarge to stop the qind taking it too easy and cut a hole a couple of cm from the edge at half to 1/3 the size of your aperture. Eg: 8" either a 4 or 3" and best of all, its vietually free, so trial and error will only cost you your time.

[rwilkey]

What would be , or is always down to personel taste the ideal filter to use i have the  nd 0.6 but it did not seem to make too much of a difference to me, it was only a half moon though. Is this just me being new and needing to become accustomed to using a scope or is it not really enough for a 6"  mirror

Hi Steve, the 0.6 gives 25% transmission. Personally, I prefer the 0.9 which gives 13% transmission. Give that a try if you get the chance.