OPTOLONG
For more than twenty years Optolong has designed and manufactured high quality scientific filters using Schott optical glass to suit a range of applications including both visual astronomy and astrophotography with DSLRs and CMOS/CCD cameras. We stock a large selection of Optolong filters including -
- L-eNhance and L-eXtreme dual-bandpass to isolate emission nebulae, available in 1.25" and 2"
- L-Pro and UHC multi-bandpass to cut out light pollution and skyglow, available in 1.25", 2", clip-in EOS-C, clip-in EOS-Full Frame and clip-in Nikon-Full Frame
- CLS to cut out light pollution and skyglow but with wider bandpass than the UHC, available in 1.25", 2", clip-in EOS-C and clip-in EOS-Full Frame
- CLS-CCD as above but with an added IR-cutoff for CCD and CMOS cameras and modified DSLRs, available in 1.25", 2" and clip-in EOS-C
- LRGB and 6.5nm Ha, Oiii and Sii narrowband for monochrome cameras, available in 1.25" and 2", as well as 36mm for the narrowband filters
- 685nm IR-Pass for planetary imaging, available in 1.25" and 2"
- UV/IR-Cut for unfiltered monochrome cameras, available in 1.25" and 2"
- Polarizing Moon filter for visual lunar observation, available in 1.25" and 2"
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