Products

A complete digiscoping solution: NexYZ connects your smartphone to an eyepiece while the Bluetooth shutter release button helps you get a steady ...

*** Currently Unavailable - Working on new regular and HD ***   With the 0.4x focal reduction factor, the field of view becomes 2.5x wider and expo...

Make Stargazing More Fun Than Ever!Stargazing is among the most peaceful and inspiring outdoor activities. Night Sky, the award-winning book by Jon...

Updated star maps include all sky events occurring in 2017 and beyond. Praise for the previous edition: "A concise introduction to the night sky ...

Play Cards and Learn to Identify Constellations in the Northern Hemisphere! Anyone who enjoys nature, the great outdoors, and stargazing will love...

A red flashlight is one of the most beneficial accessories you can own as an amateur astronomer, no matter how occasional your night sky observatio...

A greatly revised and updated edition of the best-selling guidebook to stargazing The fifth edition of NightWatch: A Practical Guide to Viewing th...

The NOMAD star tracker from Move Shoot Move is a super handy portable tracking mount for shooting Milky Way photos with a DSLR or mirrorless camera...

OM3 Optical Fiber Transceivers rated for Industrial Temperature Range (-40C to +85C) – Quantity 2.

High quality optics start with each lens and/or mirror being hand selected so only the finest grade of optical glass is used StarBright XLT coatin...

  High quality optics start with each lens and/or mirror being hand selected so only the finest grade of optical glass is used StarBright XLT coat...

High quality optics start with each lens and/or mirror being hand selected so only the finest grade of optical glass is used StarBright XLT coatin...

OPEN-BOX ITEM This SCT Corrector IV is an open-box unit. Each open-box item has been inspected and verified by our engineers to be in like-new co...

Carrying case for most 8”, 9.25” or 11” Schmidt-Cassegrain or EdgeHD optical tube; along with the 8" RASA optical tube Space for carrying accesso...

Optolong H-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of light centered on a wavelength of 656nm through, and reducin...

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...

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

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

Narrowband H-beta filter is designed for nebula observation allowing 12nm bandwidth of light centered on a wavelength of 486nm through Narrowband H...

Narrowband H-beta filter is designed for nebula observation allowing 12nm bandwidth of light centered on a wavelength of 486nm through Narrowband H...

Optolong IR Pass 685nm filter is designed to block wavelengths below 670nm and can be used in IR-LRGB imaging to produce a sharper luminance image ...

Optolong IR Pass 685nm filter is designed to block wavelengths below 670nm and can be used in IR-LRGB imaging to produce a sharper luminance image ...

L-eNhance clip-filter designed for Canon EOS APS-C format cameras.  It is a dual-band pass filter which has been designed for DSLR, color CMOS and ...

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...

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...

Optolong L-Pro clip filter for Canon APS-C cameras! The L-Pro is designed to improve the visibility of various deepsky objects. By selectively redu...

  Optolong L-Pro clip filter for Canon EOS full frame cameras! The L-Pro is designed to improve the visibility of various deepsky objects. By selec...

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) ...

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...

1.  L-Pro 1.1 Introduction In suburban areas with weak light pollution, the color balance is good. The design of multi-band pass ensures excellent ...

Optolong L-Pro clip filter for Sony full frame cameras! The L-Pro is designed to improve the visibility of various deepsky objects. By selectively ...

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

The SII/OIII filter that brings Hubble Palette imaging to your color camera. The L-Synergy is Optolong's newest narrowband filter, introduced in 20...