![How does one determine magnification? I have an Edmund Scientific Astroscan, 4-1/8-inch aperture, F/4.2 reflecting telescope, used with a 2.5x Barlow lens and a 28mm Plossl eyepiece. | Astronomy.com How does one determine magnification? I have an Edmund Scientific Astroscan, 4-1/8-inch aperture, F/4.2 reflecting telescope, used with a 2.5x Barlow lens and a 28mm Plossl eyepiece. | Astronomy.com](https://astronomy.com/-/media/Images/News%20and%20Observing/Ask%20Astro/2016/07/orion.jpg?mw=600)
How does one determine magnification? I have an Edmund Scientific Astroscan, 4-1/8-inch aperture, F/4.2 reflecting telescope, used with a 2.5x Barlow lens and a 28mm Plossl eyepiece. | Astronomy.com
![Schematic arrangement for a double-path reflecting telescope: R 1 , f 1... | Download Scientific Diagram Schematic arrangement for a double-path reflecting telescope: R 1 , f 1... | Download Scientific Diagram](https://www.researchgate.net/profile/M-Fernandez-Guasti/publication/47679982/figure/fig1/AS:349439072981004@1460324175107/Schematic-arrangement-for-a-double-path-reflecting-telescope-R-1-f-1-R-2-and-f-2.png)
Schematic arrangement for a double-path reflecting telescope: R 1 , f 1... | Download Scientific Diagram
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