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Comparison between 150mm achromat and ED instrument


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About this observation
Peter Anderson
Time of observation
05/04/2020 - 00:30
Observing location
Brisbane, Australia
150mm F8 achromat and ED instrument
2000 ISO

Comparison with 5X Barlow lens of achromat imaged on the left and ED on the right. The achromat image was taken on 7th January 2020 and the ED on 5th April 2020. Both around 09hrs 30min UT.

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