I love this filter. The CPL is accessed with the large ring, and the ND is accessed with the orange tabs. Finally, someone made it easy. The ND range is bracketed, of course. The CPL rotates all the way around. It also comes with a nice (leather-ish) case to protect it. Great design.

So, let's start by saying what these filters DO NOT do (any, any brand). These filters do not remove light pollution. If that were the case, you could photograph the Milky Way from the center of Rome or Milan, and of course that's not possible. Light pollution, if there is, cannot be removed in any way. So what do these filters do? The street lamps of the cities almost all give a light on the dark orange, which gives the landscape and the sky an annoying dominance. These filters do nothing but CONTROBALANCE this dominant with a colder color and as a result you have photographs with dominant orange much less marked and with blue skies. This is what makes these filters and in this case it does quite well.

simply to use, green light comes on when connected!

Construction, at least apparently robust and aesthetically on top of Sony mirrorless by the orange anodized ring. Perhaps there are more sophisticated products out there than construction, but it does what it needs to do and does it well. For what it costs I wouldn't look for anything else.

robust and efficient ring even when mounted on the machine, aesthetically very nice, with orange finish detail. Above. I restored all old quarters.

This feedback will be given on initial discovery and has not been used in the field. The pinpointer gives a single green light upon FINDING the item, and increases to 3 lights when it is upon the item, so I hope that helps you understand my wording.

It found the penny 1" away, a nickel 3/4" away, a dime 1" away, and a quarter 1" away. But these were on a flat surface as the pinpointer approached from the side. If I hold these coins upwards so the pinpointer approaches the largest surface area, these numbers change:
Penny= 2"
Nickel=2"
Dime=1&3/4"
Quarter=2"

I, myself, am new to the hobby and will update with a proper review in a bit. Thanks for looking!

My only problem was the battery wouldnt make contact to turn on unless I didn't use the ring that holds the wristband other than that it works fine, and even better if you want it to work just as well as the expensive garret model just wrap a piece of metal by the light and it will double the detection area

CO detector has a stand and shows CO level, green light, temp, and humidity. We set it up and after a couple days it started beeping as it was not plugged in. Not sure of accuracy of CO, but temp and humidity seem correct.