[Chooka (Pete)]

Hi all, just a couple of total newbie questions regarding filters.

Am I going to set fire to my retinas looking at the moon without a moon filter?

Am I going to still be able to see DSO etc without filters?

Do they just block certain colours making the object clearer/more defined?

Also are all the threads the same? ie different brands will still screw into other eyepieces.

Thanks in advance

Chooka