William Optics Apochromatic Refractor AP 73/430 Super ZenithStar 73 Gold OTA
Original price was: $362.00.$99.99Current price is: $99.99.
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Product description
The William Optics’ ZenithStar range consists of compact yet very high-quality apochromats which are ideally suited for use with a DSLR camera. With these, you can capture excellent wide-angle images of large star fields. Combined with an optional flattener, these provide a corrected image field with a diameter of 45 millimetres right up to the edges.
The lightweight and compact ZenithStar apochromat and a DSLR fit well on a photography mount, such as the Skywatcher Star Adventurer or the iOptron Star Tracker – a simple, lightweight astrophotography system.
It is not only important which telescope you buy, but also where you buy it.
We provide extra help:
- We are a leading telescope dealer and know these instruments like the back of our hands.
- We are always very happy to offer our assistance after your purchase, should you encounter any problems with your telescope’s setup or operation.
- Our ‘Telescope Basics’ booklet – an 80-page beginner’s guide for our telescopes – is provided free of charge with every telescope we sell.
Similar image: The product image shows different variations. Naturally, only one item will be sent.
| Type | Refractor |
|---|---|
| Mounting type | no mount |
| Advanced | yes |
| Beginners | no |
| Colour | gold |
| Series | ZenithStar ZenithStar High-quality apochromats for astrophotography.Click to read more… |
| Carrying handle | yes |
| finder base | Prism clamp |
| focusing help | Bahtinov focus mask |
| Dew Shield | yes |
| Tube clamps | yes |
| Prism rail | Vixen-Style |
| Carry case | yes |
| GoTo control | no |
| Gear reduction | 1:10 Fine movement |
| Aperture(mm) | 73 |
| Free aperture(mm) | 64 |
| Type of build | OTA OTA An OTA is an optical tube without a mount. It is short for optical tube assembly.Click to read more… |
| lens design | Doublet Doublet A refractor with two lenses. Compared to an achromat, it displays significantly less chromatic aberration and more contrast.Click to read more… |
| Tube construction | Full tube |
| Resolving capacity | 1,58 |
| Limit value(mag) | 11,1 |
| Tube weight(kg) | 2,5 |
| Carrying length(mm) | 310 |
| Tube material | Aluminium |
| Max. useful magnification | 146 |
| Light gathering capacity | 110 |
| Aperture ratio(f/) | 5,9 |
| Focal length(mm) | 430 |
| Observatories | no |
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