Optolong L2 Dual-Combo Set (L-eXtreme&L-Synergy)

What is  L2 Dual-Combo Set?

L2 Dual-Combo Set includes two premium filters: one L-eXtreme and one L-Synergy.

L-eXtreme:The L-eXtreme is a dual-narrowband filter (OIII-7nm & Ha-7nm) designed to exclusively transmit the key nebula emission lines of OIII (500.7nm) and Hα (656.3nm). By effectively blocking all other light pollution emission lines, it ensures that only the signals from OIII and Hα elements are captured during imaging, achieving maximum effective transmission. With years of technological refinement, it significantly optimizes the performance in suppressing bright star halos.

L-Synergy：The L-Synergy is a dual-narrowband filter (OIII-7nm & SII-7nm) that guarantees high transmission for both the SII (672.4nm) and OIII (500.7nm) spectral lines, while offering exceptional out-of-band rejection for all other wavelengths. By effectively blocking all other light pollution emission lines, it ensures that only the signals from OIII and SII elements are captured during imaging, achieving maximum effective transmission. With years of technological refinement, it significantly optimizes the performance in suppressing bright star halos.

1.  Why is L2 Dual-Combo Set?

The L2 Dual-Combo Set is engineered to unleash the power of Hubble Palette imaging