OPTOLONGL-Ultimate 2” Dual Bandpass Light Pollution Reduction Imaging Filter

This item is overpriced

I upgraded to the ultimate from the extreme filter. Using an esprit 100 with 2600mc. This filter like the extreme is amazing for pulling more details from the light polluted sky's around me. I upgraded because I was getting a few too many star halos with the extreme. With the ultimate this issue has been drastically reduced. It still has random halos, but nothing like before. Expensive but worth the price for what it allows you to see.

Unfortunately this filter will still produce halos on some stars but not as bad as most others and the contrast helps to produce images nearing monochrome with a good cooled OSC making it absolutely worth it. I own all Optolong Filters and was expecting a harder time with focus on this one with only 3 nm bandpass but had no issues focusing or acquiring targets as anything with Ha or Oiii pops very nicely with a 10 second test shot on 294MC with Redcat51. I do this all manually with a Skyguider Pro and had no issues.