William Optics Cat 61 WIFD f/4.9 Apochromatic Telescope with ZWO AM5N Mount Kit
$3,507.00
In Stock
- 300mm 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 61 WIFD f/4.9 Apochromatic Telescope with ZWO AM5N Mount Kit
The William Optics Cat 61 WIFD f/4.9 Apochromatic Telescope with ZWO AM5N Mount Kit brings serious imaging performance to every shoot, from planned sessions to spontaneous moments. It covers 300 mm with a maximum aperture of 2" / 61 mm.
Highlights
- 300mm 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 61 WIFD 61mm f/4.9 Apochromatic Refractor Telescope (Red, OTA Only)
- Dust Cover with Bahtinov Mask
- Dew Shield
- Mounting Ring with Handle
- M48/M54 Adapter
- 8.3" Vixen-Style Dovetail
- Camera Angle Rotator
- 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 | WITC61RD5K |
|---|---|
| Brand | William Optics |
| Optical Design | Apochromatic Doublet Refractor |
|---|---|
| Aperture | 2" / 61 mm |
| Focal Length | 300 mm |
| Focal Ratio | f/4.9 |
| Focuser | Dual-Speed Rack-and-Pinion |
| Eyepiece | Sold Separately |
| Finderscope | No |
| Mounting | Vixen Style |
| Optical Tube Dimensions | 14.4" / 365 mm |
| Weight | 7.47 lb / 3.39 kg |
|---|
| Package Weight | 11.32 lb |
|---|---|
| Box Dimensions (Lx WxH) | 18.7 x 10.8 x 9.8" |











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