Meade ETX Series Telescope Specifications
| ETX-80 | ETX-80 with Backpack | ETX-90 | ETX-90 Portable Observatory | |
| Product Number | 0805-04-21 | 0805-04-20 | 3514-04-15 | 3514-04-20 |
| Clear Aperature | 80 mm (3.15") | 90 mm (3.5 inches) | ||
| Optical Design | Refractor | Maksutov-Cassegrain | ||
| Focal Length | 400mm | 1250 mm | ||
| Focal Ratio | f/5 | f/13.8 | ||
| Telescope Mounting | Dual Fork Altazimuth | Dual Fork Altazimuth | ||
| Optical Coatings | Multi-Coated | Ultra-High Transmission Coatings (UHTC™) | ||
| AutoStar Controller | AutoStar #494 | AutoStar #497 | ||
| Object Database | 1,400 object library | 30,000 object library | ||
| Viewfinder | None | Red-Dot | ||
| Eyepiece | Super Plössl 9.7mm and 26mm | Super Plössl 26mm - 1.25" barrel | Super Plössl 26mm and 9.7mm - 1.25" barrel | |
| Tripod | Field Tripod | Light Weight Tripod | Adjustable-height steel leg tripod | |
| Batteries (User-Supplied) | 6 AA Cell Batteries | 6 AA Cell Batteries | ||
| Power | Optional #546 AC Adapter | Optional Meade Universal AC Power Adapter | ||
| Additional Features | ETX-80 | ETX-80 with Backpack | ETX-90 | ETX-90 Portable Observatory |
| AutoStar Suite Planetarium Software | Included | Included | Included | Included |
| Carry Case | No | No | No | Included |
| Tripod Bag | Included | Included | ||
| Erecting Prism | Optional #933 | Included | Optional #932 | Optional #932 |
| Dew Shield | No | Included | No | No |
| Barlow Lens | Internal Flip-in Barlow lens | Optional #126 2x Short-Focus | ||
| Backpack | No | Included | No | No |
| Weights and Dimensions | ETX-80 | ETX-80 with Backpack | ETX-90 | ETX-90 Portable Observatory |
| OTA Dimensions | 3.6" x 14.5" | 3.6" x 14.5" | 4.0" x 13" | 4.0" x 13" |
| Telescope Weight | 6.2 lbs. | 6.2 lbs. | 9.05 lbs. | 9.05 lbs. |
| Tripod Weight | 4 lbs. | 3 lbs. | 13.3 lbs. | 13.3 lbs. |
| Carry Case Weight | N/A | N/A | N/A | 6.65 |