I will definitely be doing more business with First Light Optics. Very helpful staff.

Ordered item and received it in 2 days excellent service and would highly recommend this for light pollution

This light pollution filter has been such a help! I am able to triple my exposure times for the same amount of light pollution washout than without a LPF! And for the money, I think it's a no-brainer for any amateur astrophotographer!

Basically does nothing for visual use from my bortle 5 skies, either needs more light polluted skies to see an effect or be used for imaging.

This light pollution filter is a great, and economical choice. I just shot M81/M82 in the northerly skies from my house toward the city. I was able to almost triple my exposure times and get the same light pollution wash that I achieved without the filter. Great option. It's not a perfect filter, but for about 50 bucks shipped instead of 180, it was the perfect price.

this filter does help reduce light pollution,. I was able to view more stars which had been blocked out by the many street lights where I live. Good value for the price

A really good filter and although I have the 2" version I do not doubt that the 1.25" is just as good. A good value alternative to the more expensive filters.

In my location on the south coast we have horrid old sodium orange lights of the old sling it in all direction sort,having nearly given up using a dslr as 2 min + exposures you end up with a bright orange pic,even down to 1 min you still see the intrution,after using the 1 1/4 size the images are pure black,totally taking out the false colour,have ordered a 2in version also flo do a one piece adaptor(no more bits unscrewing and cameras doing there own thing)in the past have used sw direct connection but this does not allow the addition of any form of filter,if your in a sodium light area these are superb,as other reviewers say maybe not for all light types.

The filter works well for light pollution, though only for the light from the orange sulphur street lights on these it does work very well.

It also cuts down the general skyglow as well, which is very welcome.

This is a good filter but it's performance will vary from miraculous to a damp squib depending on the type of light pollution you are facing.

If you're observing through city light pollution, don't expect much improvement. There's just too much light for the filter to block out. If the filter blocked out all that light you wouldn't see anything at all.

However, if you have old street lights, the deep orange low pressure sodium ones - this filter will do an excellent job of cutting that out. It works too on the higher pressure sodium (still orange) lights but not quite as well as these lights are brighter.

As for floodlights, security lighting, etc, these filters won't do much.

I highly recommend these filters for all observers using 1.25" eyepieces. If you're in England, you really need one of these in your eyepiece box. If you're in a city, they're helpful too in case you travel outside. I've tested this filter from two English star parties from relatively dark skies and they did improve the views, increasing contrast and dulling down the orange glow from nearby towns.