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Astromical lens 560mm F 7.1 fixed
#5
Dave, if you are curious about the telescope: in astronomy, they specify the telecopes by their aperture size in mm. Therefore, you have to look out for an 560mm:7.1=80mm type refractor. If you google "80/560 telescope", you will find some in the price class you meantioned.

 

By my own experiences, the optical performance is not to be underestimated. The drawback is size, weight and max. aperture when compared to proffesional prime lenses.

  


Messages In This Thread
Astromical lens 560mm F 7.1 fixed - by davidmanze - 05-04-2013, 11:24 AM
Astromical lens 560mm F 7.1 fixed - by Guest - 05-04-2013, 03:12 PM
Astromical lens 560mm F 7.1 fixed - by popo - 05-04-2013, 03:33 PM
Astromical lens 560mm F 7.1 fixed - by davidmanze - 05-04-2013, 06:49 PM
Astromical lens 560mm F 7.1 fixed - by Guest - 05-07-2013, 12:34 PM
Astromical lens 560mm F 7.1 fixed - by davidmanze - 05-08-2013, 12:40 PM
Astromical lens 560mm F 7.1 fixed - by davidmanze - 05-18-2013, 08:21 PM

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