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Doug.. Be ware.. 2" filter wheels = Expensive... Looked into it already.. I wanted a 4 position manual 2" wheel so I could have LPF/SII/Ha/OIII in a wheel... shoot OSC through LPF, then shoot a heap of narrowband data in one run and do some LRGB (Ha Ha+R SII+G OIII+B) images, or HSHO shots etc...
The QHY filter wheel is the cheapest option around, its motorized, but im sure QHiY could do up a few manual wheels if demand was such to support the run...
Alex.
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