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Description
William Optics Apochromatic refractor AP 61/360 ZenithStar ZS61 II OTADescription The Zenithstar range is the most versatile and portable scope ever made by William Optics. The ZS61 II APO features an air spaced doublet lens with fully multi coated optics and an Ohara FPL 53 ED glass element for sharp, high contrast images virtually free of false colour. It provides high resolution images when used for astrophotography or wildlife photography and is a convenient ultra portable telescope for visual astronomy. The fast f
Description
The Zenithstar range is the most versatile and portable scope ever made by William Optics. The ZS61 II APO features an air-spaced doublet lens with fully multi-coated optics and an Ohara FPL-53 ED glass element for sharp, high contrast images virtually free of false-colour.
It provides high resolution images when used for astrophotography or wildlife photography and is a convenient ultra-portable telescope for visual astronomy.
The fast f/5.9 focal ratio and compact size make it ideal for convenient wide field astrophotography or piggybacking. These telescopes can be used for high power visual work, as well as lunar and solar photography thanks to the dedicated Flattener 61. It is truly a great piece of optical engineering.
Convenient rotatable L mounting bracket for easy framing of target.
CNC machined aluminium for a superior fit and finish.
Dual speed 2" 1:10 R&P focuser.
Available in Red, Gold or Space Grey anodised.
Specifications
Optics |
|
| Type | Refractor |
| lens design | Doublet |
| Tube weight (kg) | 2,2 |
| Resolving capacity | 1,89 |
| Type of build | Apochromat |
| Focal length (mm) | 360 |
| Limit value (mag) | 10,7 |
| Light gathering capacity | 80 |
| Max. useful magnification | 122 |
| Aperture (mm) | 61 |
| Aperture ratio (f/) | 5,9 |
| Tube material | Aluminium |
| Tube length (mm) | 315 |
| Carrying length (mm) | 245 |
| Tube construction | Full tube |
| Fully Corrected Field (mm) | 43 |
| Coating | SMC multi-coating |
Focuser |
|
| Gear reduction | 1:10 Fine movement |
| Adjustment range (mm) | 75 |
| Type of build | Gear rack |
| Free aperture (mm) | 51 |
| Connecting threaded socket (camera-side) | M48 |
| Connection ( to eyepiece) | 2" |
Mount |
|
| Mounting type | no mount |
| Type of build | OTA |
Included accessories |
|
| Dew Shield | yes |
| Corrector | without |
| Tube clamps | yes |
| Prism rail | Arca-Swiss & Vixen-Style |
| Finder scope | no |
| Deviating optics | no |
| Eyepiece adaptor | 1,25" - 2" |
| Carrying case | no |
| Thread for camera tripod | 1/4" & 3/8" |
| Carrying bag | yes |
General |
|
| Series | ZenithStar |
| Colour | red, silver or gold |
Area of application |
|
| Astrophotography | highly recommended |
| Nature Observation | yes |
Recommended for |
|
| Beginners | no |
| Advanced | yes |
| Observatories | no |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy