| eyepiece | Orion XT8, 8" (203mm) | Orion Argonaut, 6" (152mm) | Takahashi FS-102, 4" (102mm) | Meade SDE 10" (254mm) | Obsession, 25" (635mm) | ||||||||||
| focal length, mm | apparent field, degrees | 1218mm | f/6 | 1800mm | f/12 | 820mm | f/8 | 612mm | f/6 | 1143mm | f/4.5 | 3175mm | f/5 | ||
| TeleVue
mfgr |
Panoptic
type |
FOV, degrees | mag | FOV, degrees | mag | FOV, degrees | mag | FOV, degrees | mag | FOV, degrees | mag | FOV, degrees | mag | ||