great piece of kit, well made. good for nebular like the orian nebular. you get better detail on jupiter.

A high quality filet as you would expect from Baader the amount of detail that it brings out in emission nebula like M42 The great Orion Nebula surpassed my expectations. Highly recommended to anyone looking to improve the Astro Photography arsenal!

Very nice addition to the collection .came extremely well packed ! Recommended!

This is quite handy filter – for visual it cut's out the light pollution noticeably. The visibility of the nebula is improved, but much less than with O-III filter (on O-III glowing nebulas). If you start looking off-axis then you may see that stars can look like split red-green sometimes.

For imaging nebulas it is also quite good as it pass O-III/H-beta and H-alpha regions. I used it as a nebula luminance filter and shot R,G,B with this filter stacked to get quasi-narrowband nebula look (higher contrast of M27 vs the background sky).