AstroZap Baader Solar Filters
TeleVue Bandmate OIII Filter - 1-1/4 Inch is no longer available.
We recommend these products instead:
Bandmate OIII Filter
This OIII filter particularly enhances planetary nebulae in larger telescopes.
- Narrowband filter for high transmission, with high blocking of unwanted longer wavelengths to yield high-contrast images.
- Ion beam technology and optical glass produces low scatter in a hard stable coating to reduce changes due to temperature and humidity.
- Optical quality BK7 glass yields sharp star images, even when filter is placed in front of diagonal.
100% quality control:
- Every single filter is checked optically and cosmetically to assure performance.
- Every filter is individually serialized.
Only ships in contiguous USA.
Dimensions & Specifications
Telescope Accessories Series
Oxygen III Filters
We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.
Default manufacturer warranty.
Return & Exchange Policy
At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.
Q1: I have a 10-inch dob with a 1.25-inch focuser. I want to buy a filter but I do not know how a filter fits and I do not know if I can use one with my eyepieces and focuser. Does the filter fit over the eyepiece at the viewing end or what? I just do not want to spe
A: Filters thread into your eyepieces.