本帖最后由 星星俱乐部 于 2009-6-3 00:39 编辑
看了一下资料:
Super Plössls: Designed to utilize the very latest in optical glass types, Meade 4-element Super Plössls are excellent general-purpose eyepieces. For observing hairline lunar and planetary detail, splitting close double stars, or for resolving faint nebulosity in deep-space, Meade Super Plössls optimize the performance of any telescope type, whether f/10 Schmidt-Cassegrain, f/16 refractor, or f/4 reflector.
They also operate well in conjunction with the air-spaced design of the Meade #140 2x Apochromatic Barlow. All focal lengths through 32mm are parfocal. The Super Plössl 56mm eyepiece with 2" O.D. barrel yields 36X and an actual field of view of 1.4° on an 8" f/10 Schmidt-Cassegrain telescope.
4000系列 Super PL
Super Plössl 6.4mm (1.25") | $49 | Super Plössl 9.7mm (1.25") | $49 | Super Plössl 12.4mm (1.25") | $49 | Super Plössl 15mm (1.25") | $49 | Super Plössl 20mm (1.25") | $49 | Super Plössl 26mm (1.25") | $49 | Super Plössl 32mm (1.25") | $69 | Super Plössl 40mm (1.25") *(44 Degree AFOV) | $69 | Super Plössl 56mm (2") | $99 |
这个所谓 Super PL 是在普通PL的基础上改进了外面的胶合镜片,一般的PL外面的两个镜片是平面,这个的球面幅度还挺大
和晶华自己的 PL目镜对比后,在像场曲变方面确实消除了。 |