2 inch filters are the way to go if your scopes have 2 inch focusers.. You can use 2 inch filters with 1.25 inch eyepieces if the adapter is threaded for filters. And 1.25 inch filters can vignette with eyepieces like a 24mm WF or 32mm Plossl.. Jon saemark30 and astroclint like th...
8SE and OIII FilterMidnight Dan
Using the Colour Magic 2” C duo-band filter package can effectively improve the contrast of the image, making it easier to bring out the detailed features of objects that would otherwise be difficult to capture. It'll be able to take high-quality deep-sky images even in areas affected by...
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Page 2 of 3 - new improved OIII lumicon filter - posted in Eyepieces: OK, lab reports are back: Lumicon Gen.3 O-III filter: FWHM bandwidth--11nm Transmission 495.9nm--95.1% Transmission 500.7nm--94.7% no red output. This confirms what I saw--a tad na
Does my inability to see the nebula have more to do with the old filter, or with using an 8 inch dob in a 4.5-5 Bortle sky? Am I expecting too much with an 8 inch dob? I will try again this weekend in a darker Vermont location. Thanks ...
with emission nebulae...especially in light polluted areas. If I had to have two I think I would rather have a H-beta filter. Although my 8-inch is probably at the low limit for its use, I think I would use it more than my UHC- well as much as an H-beta filter could be used...
Zhumel OIII filter for cheap!David Knisely