SVBONY SV220 Telescope Filter, 7nm Dual-Band Nebula, H-Alpha and O-III Narrowband Filter for One-Shot Color Cameras, Reduce Light Pollution for Astrophotography (1.25 inches)

This filter fits my Dwarf Labs Dwarf II filter holder perfectly. I has allowed me to successfully image nebula in moderately light polluted areas. Make sure that it screwed into the adaptor correctly and that the adaptor is seated correctly to avoid optical coma. Well worth the money for me!

I am using this on a Celestron Origin Mark II the filter is much better at reducing Halos compared to the Origin nebula filter direct from Celestron and for very comparable price. It doss limit the light bands enough that it's difficult to polar align the origin with this filter in place so after polar alignment and initialization you can switch to this filter and while pointed at fairly bright stars get an auto focus . Very happy with the outcome and results from this filter . Highly recommended for the Celestron Origin

Outstanding filter. Made a huge difference in my imaging. Because of 2" size, no notice of vignetting with ASI533MC Pro.

Just buy it. Got it today. The 7nm works at f2 on a C6 hyperstar. Pics in a bortle 5/6. The difference is night and day. The vail nebula is 40 minutes of integration, Andromeda is 1 hr, and the Christmas tree cluster is 2 hr. Processed real quick in siril.

Giving this a 4 for the time being since I'm using an unmodified DSLR which isn't very sensitive to Ha. That said I'm getting very decent results. I'm now in the North Carolina mountains (Bortle 5-6) so I expect to get better results and I have an ASI533MC Pro on order. Wwill update the review after testing with a real astro camera. Attached are images of NGC6992-C33-Veil Nebula and NGC2359-Thor'sHelmet taken in Bortle 8-9 skies near downtown St, Petersburg, Fl and with < 1 hour imaging on each.

My photos attached speak for themselves. This filter is amazing and much cheaper than competitors.

Great item.

I am very happy with this purchase. The picture on the left is 3.5 hours worth of data shot with the SVBONY 220 7nm 2" filter with a ZWO 533MC on a Redcat 51. The picture on the right is 10.5 hours of data with the same rig except was shot with the Optolong L-enhance. Both picture were processed excatly the same. Cropped, Graxpert/Background extraction/denoise. Loaded into Siril and autostretched and then saved.

Excellent product, better than the overpriced other brands. Great packaging and nothing to complain about .

Brilliant product at a amazing price

Great quality for the price!

الفلتر غني عن التعريف ولكني قمت بارجاعه لانه غير مناسب لتلسكوب seestar s50

Fits 2 inch eyepieces. Made to reduce light pollution. Cannot comment on efficiency as have not used it yet due to weather conditions, sorry.