![]() Relatively light in weight and easy to handle, first class construction techniques, components of the highest quality, and the very best optics available combine to produce a telescope fully capable of remarkable performance. The 10" PI250 instrument is first in our series of larger aperture Newtonians. Near perfect optics are available and are well worth the investment." Furthermore, no expense should be spared in obtaining the finest primary mirror. Therefore, when one decides to purchase a telescope for planetary work, he should obtain the largest aperture he can afford. It is no wonder that the finest images of the planets ever taken from the earth have been with large reflectors. ![]() Observing Jupiter at 300x with the resolving power of a 16" Newtonian in steady seeing is a sight to remember. In addition, the true colors of the planets become more apparent. Make no mistake about it: If one is seeking the very smallest details on a planetary disc, only the larger aperture with its greater separating power can show them. Today's super widefield eyepieces certainly have their place but high quality Plossls or Orthoscopics with their minimum number of air to glass surfaces should be the rule for the planets. ![]() In over 30 years of observing using dozens of eyepiece designs, the visual difference in planetary detail is subtle at best and only under extremely steady conditions can these differences be seen. "You may have read in various astronomy forums on how one type of eyepiece "blows away" another type when observing the moon, planets, or double stars.
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