They are very well made and stand up to hard use

They are very well made and stand up to hard use  Read Less

These filters feature brass rings painted black and are very easy to thread on and off thanks to the knurled design to enhance grip

These filters feature brass rings painted black and are very easy to thread on and off thanks to the knurled design to enhance grip  Read Less

Screwon lens hoods on the later versions of wide angle leica m lenses cannot be attached because the filter barrel isnt flush w...  Read More

Screwon lens hoods on the later versions of wide angle leica m lenses cannot be attached because the filter barrel isnt flush with the lens barrel  Read Less

The glass used i believe is schott glass which is optically clear and distortion free as well as having little to no effect on color cast

The glass used i believe is schott glass which is optically clear and distortion free as well as having little to no effect on color cast  Read Less

It is expensive but has excellent light transmission without any distortion or color shift

It is expensive but has excellent light transmission without any distortion or color shift  Read Less

Awesome filter at a great price shipped and received in a timely manner

Awesome filter at a great price shipped and received in a timely manner  Read Less

A little expensive but you get what you pay for

A little expensive but you get what you pay for  Read Less

It was more expensive than the bw i was going to buy but i do not regret my purchase

It was more expensive than the bw i was going to buy but i do not regret my purchase  Read Less

They contacted me right after my filter was shipped and i feel confident that they will stand behind their product

They contacted me right after my filter was shipped and i feel confident that they will stand behind their product  Read Less

The packaging is outstanding and the included clean cloth is appreciated

The packaging is outstanding and the included clean cloth is appreciated  Read Less

Clearest glass ive ever seen packaged well and fantastic warranty

Clearest glass ive ever seen packaged well and fantastic warranty  Read Less

I was packing up the gear so the lens hood was already reversed in place for transport

I was packing up the gear so the lens hood was already reversed in place for transport  Read Less

This x4 filter is the superior ultraviolet filter of all similar filters

This x4 filter is the superior ultraviolet filter of all similar filters  Read Less

The filter is also multi coated and thanks to this proprietary coating is far easier to wipe clean of finger prints oils and sa...  Read More

The filter is also multi coated and thanks to this proprietary coating is far easier to wipe clean of finger prints oils and salt spray compared to other premium filters i have tried  Read Less

I have used other brands of filters but since i discovered breakthrough filters i now look no further

I have used other brands of filters but since i discovered breakthrough filters i now look no further  Read Less

Ive got several breakthrough filters and i wont use any other brands

Ive got several breakthrough filters and i wont use any other brands  Read Less