Thank God, this (r) additions on the market

Advance the purpose:
1. The use of filters (UV, Pol)
2. mainly the lens protection and slats my Nikon Coolpix P7000 before weather conditions (dust, rain, etc.).
Long sought this opportunity and thank God found (among Amazon where else?).
I agree with the words of the review of "Weigalo" essentially to clean thread on two tubes, all made of metal, well done - but still only 4 stars from me: Write "jho" and "Weigalo" in their reviews sitzten the adapter parts properly, or tolerance-free, so that's not quite right, a little jitter, an existing game is determine what I produced a slight sneer, but I is not an essential function restriction now. The shaking, I also with the nut manufacturer Nikon. Perhaps it is a design weakness or weakness of tolerance dimensions of the manufacturer Nikon, not the tube - I do not know.
The consequences: on the camera are tiny sensors, which in contact always leave the extended zoom lens retract (beyond 35mm) at wide-angle (the manufacturer Nikon will probably so in the assumption that a wide-angle converter is connected ???). Unfortunately, this is the case with the tube with bayonet threads, as a result of not just impeccable, not tolerance-free connection (see above). Some wag, and the lens returns to Wide. To prevent this, I have on the tube at the relevant point something filed (not much), the tiny sensor / switch now remains intact - despite the usual slight wobble - the lens will remain in the desired position of mine. Is the purpose of: cartridge, weather protection now without complications. Bring on the (great) camera even when üblem weather.