SharpStar 140PH 140mm f/6.5 Dual ED Triplet APO Rubber Eyecup If you need to use

If you need to use the transmitter in mutiple places

You can also set your preferred listening frequency

5KHz Working    voltage 7

Different sizes of motor couplers

Helical focusers are a simple but highly effective way to achieve fine

SharpStar 140PH 140mm f/6.5 Dual ED Triplet APO Rubber Eyecup If you need to useSharpStar 140PH 140mm f 6. 5 Dual ED Triplet APO Apochromatic Refractor Telescope The serious amateur's astro photo instrument with a pioneering (in this size) dual ED optical system. A fast triplet APO with 910mm focal length, with incredible colour correction, excellent choice for both astro photography and nature photography! FOR FULL FRAME IMAGING! If the above is not enough, combine it with a dedicated 0. 73x 3" focal reducer and enjoy a super