July 15th, 2019

Туманности M 16 (Eagle), M17 (Omega)



Shot from Rehovot, with Moon (50%) (very bad sky - Bortle 7 or 8) using STC duo narrowband filter, which passes two major narrowband transmission lines — Ha (656.3nm) & O-III (500.7nm) at high transmission rate (~80% or above)

Sony A7II, Canon FD 200/2.8 at 2.8,
ISO 3200,
160x30s (+ dark, bias and flat frames),
Processing in DSS and then curves in LR