ETX-90 PE UHTC
- Art.-No.:
- 0110093
- Use cases:
- Telescopes for beginners
Lunar and planetary observation
Telescopes for Travel - Articlefamily:
- -
- Model:
- Maksutov-Cassegrains
Manufacturer's Suggested Retail Price
- Germany:
- 798.00 €
- Austria:
- 798.00 €
| Technical Specifications and Features | |
| Optical Design | Maksutov-Cassegrain |
| Diameter Primary Mirror | 96mm |
| Front Lens Ø (Clear Aperture) | 90mm |
| Secondary Mirror Ø / Obstruction % | 27.9mm / 31 % |
| Focal Length, Focal Ratio | 1250mm, f/13.8 |
| Resolving Power in arc seconds | 1.3",1 |
| Optical Coatings | UHTC |
| Limiting Visual Stellar Magnitude (approx.) | 11.7mag |
| Image Scale (degrees/cm) | 0.46°/cm |
| Recommended Maximum Visual Power | 180x |
| Near Focus (approx.) | 3.5m |
| Optical Tube Dimensions (Ø x length) | 10.4cm x 27.9cm |
| Standard Eyepiece(s) | eyepiece super Plössl 26mm 4000 |
| Accepts Eyepiece Barrel Ø | 31.7mm(1.25") |
| View Finder Scope | EasyAlign with SmartFinder |
| Telescope Mounting | steel-reinforced high-impact ABS |
| Setting Circles Ø | AZ 17,8cm, EL 8.9cm |
| Power Supply | 12V battery or power supply unit |
| Batteries (user-supplied) | 8x Mignon |
| Battery Life (approx.) | 20 hrs |
| Motor Drive System in RA/AZ | DC servo motors with encoders, both axes |
| Motor Drive System in DEC/EL | DC servo motors with encoders, both axes |
| Slow-Motion Controls | electric, 9-speed, both axes |
| Autostar Controller | Typ #497 |
| Autostar Object Database | 30.326 objects |
| Hemispheres of Operation | North ans South |
| Bearings in Azimuth / RA | Nylon |
| Bearings in Elevation / DEC | Nylon |
| Tube Body | aluminum |
| Primary Mirror | Pyrex glass |
| Front Lens / Correcting Plate | BK-7 optical glass, Grade-A |
| Telescope Dimensions | 38cm x 18cm x 22cm |
| Telescope Net Weight (w/o tripod) | 3.5 kg |
| Telescope Net Weight (w/tripod) | 8.5 kg |
| Tripod Net Weight | 5.0 kg (#884) |
| Telescope Shipping Weight (w/tripod) | 14.5 kg |
| Field Tripod Height | 64cm - 109 cm |
| *May alternatively be powered from 230V home outlet by using the optional 230V AC adapter #541F (0455120) or from automobile cigarette lighter plug by using the optional power cord #607 (0455100). Cable length ca. 7,5m each. | |
| focal length | 1250mm |