William Optics Cat 51 WIFD f/4.9 Apochromatic Telescope with ZWO AM5N Mount Kit
$3,177.00
In Stock
- 250mm Focal Length, f/4.9 Focal Ratio
- Center-Balanced Internal Focus Design
- For Full-Frame, APS-C, Micro 4/3 Cameras
- Strain-Wave Motorized Mount
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William Optics Cat 51 WIFD f/4.9 Apochromatic Telescope with ZWO AM5N Mount Kit
The William Optics Cat 51 WIFD f/4.9 Apochromatic Telescope with ZWO AM5N Mount Kit is built for photographers and creators who want dependable, professional results. It covers 250 mm with a maximum aperture of 2" / 51 mm.
Highlights
- 250mm Focal Length, f/4.9 Focal Ratio
- Center-Balanced Internal Focus Design
- For Full-Frame, APS-C, Micro 4/3 Cameras
- Strain-Wave Motorized Mount
Every order from NIXTRONIC ships tracked worldwide and is covered by our 60-day return policy on eligible items.
In the Box
- William Optics Cat 51 WIFD 51mm f/4.9 Apochromatic Refractor Telescope (OTA Only, Red)
- Bahtinov Cap
- M48 Cap
- Mounting Ring with Handle
- Dual Mounting Plate
- Mounting Ring Handle Bar
- Allen Key Set
- Soft Carry Case
- ZWO AM5N Harmonic Equatorial Go To Mount
- Hand Controller
- Coiled Hand Controller Cable (23.6')
- USB-B to USB-A 2.0 Cable (6.6')
- M6 Allen Key
- Periodic Error Curve Report
- Carry Case

| SKU | WILRC51RDI5K |
|---|---|
| Brand | William Optics |
| Optical Design | Apochromatic Doublet Refractor |
|---|---|
| Aperture | 2" / 51 mm |
| Focal Length | 250 mm |
| Focal Ratio | f/4.9 |
| Focuser | Dual-Speed Rack-and-Pinion |
| Eyepiece | Sold Separately |
| Finderscope | No |
| Mounting | Vixen Style |
| Optical Tube Dimensions | 13.6" / 346 mm |
| Weight | 5.25 lb / 2.38 kg |
|---|
| Package Weight | 8.935 lb |
|---|---|
| Box Dimensions (Lx WxH) | 16.6 x 10.7 x 9.5" |











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