<https://stargazerslounge.com/topic/57994-double-cluster-in-perseus-widefield/>
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"Attached is a first 'quick and dirty' process of the Double Cluster - one of my favourite visual objects, even in a small scope like the Tak TSA102s... I've moved on now from M45! I have to thank previous posters 'Catanonia' and 'Vega' for their inspiration to try and image this subject ... Taken on 3rd Jan 2010 Scope: Tak FSQ106-EDX Mount: Tak EM400 Camera: SBIG ST4000XCM - self guiding @ -20 degrees 40 x 120sec exposures at f3.6 (with tak focal reducer) and the Hutech LPF-V2. Probably didn't need to use the LP filter(!) as if memory serves, the scope was pointing virtually straight up.... also achieved amazing guiding RMS figures of around 0.2!  With 20 dark frames, and... 20 flats and 20 dark flats applied (with EL panel) - again, using the better 1.3sec (but not quite aligned) ones from my M45 thread - must endeavor to take these at the same time as the light frames next time!  Aligned and drizzle stacked in Nebulosity2 on an Apple PowerBook G4. Only a small amount of processing in Photoshop (levels and curves) with a little Noel's Actions applied also! Hoping to have another go tomorrow processing as I'm at home (closer to my parents), while my dad has a big operation.... fingers crossed.... I'll also post a closer view too! Any tips welcome! Damian   \n"
<https://stargazerslounge.com/topic/57994-double-cluster-in-perseus-widefield/>