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AltAzAstro

NGC4565 with MAK 90

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A stack of 101x30s lights taken with a SW MAK 90 plus TS 0.5x focal reducer and a ZWO ASI 178 MM mounted on a SW AZ-GTi in altaz mode.

The real reduction factor of the focal reducer on this setup is indeed 0.57x, for a focal length of about 712 mm, with some tolerance.

Taken from the balcony of a flat in downtown Turin, Italy (17.8 sqm).

NGC4565-20190510-MAK90.thumb.jpg.5dbeef003a51831e94e66445c2ae726d.jpg

 

 

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