The 3x barlow is Fully Multi-coated. I don't know the manufacturer. It was bought in another astromart deal. It seems to be well made and as far as I can tell it is NEW. I don't need it because I already have a 2.5x Powermate. I tested it along with the 2.5x PM and it performed very well. Overall, the PM is king. But, this barlow did very well until > 350x.
The 35mm Rini in the photo is --*SOLD to LK*
3x FMC Barlow- $30 Shipped....
PayPal please....Thanks, Doug