Filters

Quality Filter Materials: Schott B260 substrate material from Germany, 2.0mm thick CNC machined and black anodized aero-metal filter cell that is u...

Optolong UV/IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of the image as most of the optics are ...

It is used on a digital camera and the video, which do not have an IR protection filter toward an image sensor or were remodeled. This is important...

Optolong UBVRI Photometric filters - Set of five mounted 1.25" filters for use in imaging filter wheels. Set includes Ultraviolet (U), Blue (B), V...

Main Use and Performance Use with H-alpha and OIII-CCD extra narrowband filters (SHO Set) for tricolor CCD astrophotography Narrowband imaging wi...

Main Use and Performance Use with H-alpha and OIII-CCD extra narrowband filters (SHO Set) for tricolor CCD astrophotography Narrowband imaging wi...

OIII emits 495.9nm and 500.7nm and it is a blue-green colored filter. Many of images of planetary nebula and supernova remnants are taken only with...

OIII emits 495.9nm and 500.7nm and it is a blue-green colored filter. Many of images of planetary nebula and supernova remnants are taken only with...

OIII emission overlaps on blue and green filters with maximum transmission to allow high efficiency and natural color imaging. Gap between green an...

SummaryThe L-Quad Enhance Filter is a quad bandpass light pollution filter designed for use with color cameras.  It suppresses light pollution gene...

Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) a...

Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) a...

Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) ...

L-eXtreme is a two 7nm bandpass filter which can be used with one-shot color cameras like DSLR's (digital SLR), and monochrome CCD cameras, it is a...

L-eXtreme is a two 7nm bandpass filter which can be used with one-shot color cameras like DSLR's (digital SLR), and monochrome CCD cameras, it is a...

Here's a cool comparison with a HyperStar C9.25 using no filter, a L-Pro Light Pollution Filter, and the new L-eNhance Filter from Optolong. The L...

Sizes 2" Mounted Specifications CWL(centre wavelength): 656.3nm Fwhm: 7nm Tpeak: <85% Coating Wavelength: 300-1100nm Optical Denisity: OD3 Su...

Technical Data Schott substrate material Thickness 2.0mm Surface Quality: 60/40 (Refer to MIL-O-13830) Fine-optically polished to ensure accurate ...

Optolong L-eXtreme F2 is a dual-band (500.7 nm and 656.28 nm, FWHM=7 nm) narrowband pass filter that meets the requirements for transmission at con...

Four great Moon filters in one kit—everything you’ll ever need for optimal views of the lunar surface Three neutral density (ND) filters with dif...

The IDAS NBZ-II is a dual band nebula booster filter - the successor to the NBZ (UHS) filter. The FWHM of the NBZ-II is 8nm (+/=0.4nm) at ...

IDAS NB3-PM: PM stands for Passband Modification  Nebula Booster NB3-PM filter for OIII and SII the NB3, OIII and SII emission lines respectively. ...

IDAS NB1 Filter is designed to enhance the contrast of emission nebula, yet accommodate the filter spectral shift* when used with modern fast optic...

A filter for enchanced H-alpha nebula observations with UV/near IR suppressiong function - especially removing red end spectrum interference. The H...