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Estimated 14 days lead time
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Optolong L-Ultimate isolates H-alpha and OIII through two 3 nm passbands for colour-camera emission-nebula imaging.
Dual 3 nm H-alpha and OIII transmission
Designed to suppress light pollution around nebula emission lines
Not intended for fast focal-ratio systems
Select the mounted diameter or unmounted format required by your filter wheel or holder. Check clearance and sensor coverage before ordering.