Astromania 1.25" 26mm Super Plossl Telescope Eyepiece - Bundle with - 1.25 Inch Telescope Eyepiece Parfocal Rings Set of Three

"These rings provide the ideal solution. They are made of precision machined aluminium with black anodizing. An Allen key & wrench to adjust position is included. They are also extremely useful when used with a flip mirror or beam splitter for photography. To use a par focal ring with a flip mirror you would first use the telescope's focuser to put your attached camera in perfect focus, now slide a ring over the eyepiece of your choice and raise and lower the eyepiece in the holder until it is perfectly in focus. Once you find the focus point that is perfectly matched to the camera slip the ring down and lock it in place using the included wrench. Now you can focus using the eyepiece . This is much easier than a dim focus screen. You just flip the mirror and take a picture! Leave the ring in place on the eyepiece and you can always quickly and easily pop it back in for photography.

• Adjust the Focusing Ring for Precise Calibration: When changing the 1.25 inch eyepiece of the telescope; refocusing is not required; enabling rapid switching; maintain sharp focus for planetary observation and astrophotography
• All-Aluminum metal Construction: It is treated with black anodic oxidation; featuring excellent wear resistance and a long service life; precisely processed to ensure compatibility with a variety of telescope eyepieces
• Easily Increase Magnification: With parfocal ring equipped telescope eyepieces you can change magnifications quickly and easily; this set of three Astromania parfocal rings lets you make more efficient observing
• Fully Multi-coated: Astromania 26mm Super Plossl eyepiece is engineered with 2 sets of 5 element design with fully multi-coated; the high-quality optics that minimize internal reflections and improve contrast
• 52 Degree Field Of View: The eyepiece have a wider 52 degree field of view than most eyepieces with a 26mm focal length and 20mm eye relief to see more detail; You can choose eyepiece with the right focal length for your telescope model which are parfocal