SVBONY Telescope MK90 Maksutov-Cassegrain Compound-Style Reflector Telescope for Making Detailed Lunar and Planetary Observations 1.A perfect transportable, grab-and-go telescope, with its sturdy metal construction it will be sure to survive a few bumps and knocks on its travels. 2.MK90Maksutov-Cassegrain Telescope exchanges the conventional front corrector plate of a Schmidt with a convex meniscus lens, resulting in a smaller secondary mirror that limits obstruction and increases contrast, while eliminating the need for periodic collimation. 3.The mount rail is of a Vixen style dovetail design to easy attach, it will be compatible with most mounts 4.Utilizing Conical extinction tube prevent stray light from interfering with your viewing experience 5.An ideal scope for making detailed lunar, and planetary observations SVBONY SV135-This is definitely a must for beginners to start a good eyepiece collection.with this eyepiece, you can enjoy planetary astronomy .As a beginner; SV135 is good for starter astronomer! Zoom from low to high power in an instant with SV135 versatile eyepiece Zoom Eyepiece; 7mm-21mm linear continuous zoom; give you more flexibility with out changing eyepieces;Very easy to use and very smooth operation. 1.25" barrel size; Compatible with any telescope that accepts 1.25" eyepieces;1.25" aluminum barrel is threaded for filters and internally blackened to eliminate internal scattering SV221 diagonal mirror reflects the telescope's light path 45 degree to provide a more comfortable viewing angle, suitable for observing objects overhead. Interface is 1.25” and the thread size is 28.5*0.6, to connect to astronomical telescope with 1.25” interface and 1.25” filter, for a better observation experience.Standard 1.25 inches diameter can be used with 1.25 inches telescope accessories such as eyepieces and filters. Brass compression ring design, provides a uniform pressure receiving area when holding the eyepiece, fingertip screw clamps accessories effortless fixes more firmly and will not damage your eyepieces. Large thumb screws allow you to twist more conveniently during use, the operation is more portable, and it can be easily fixed even if wearing gloves in winter. It can observe the moon and planets, suitable for a variety of scenarios. Package includes:1PCS SV221 1.25" 45 Degree Correct image Prism Diagonal, 3PCS M3 Screws, 1PCS Dust Cap, 1PCS Dust Plug