As seen on the RedCat 61 series, the patented William Optics Internal Focus Design (WIFD) makes its debut on the RedCat 51 series! The addition of the WIFD system brings something that RedCat 51 fans have all been waiting for: out-of-the box electronic focuser compatibility. This innovation from William Optics provides the ultimate Apochromatic refractor for astrophotography!
This internal focusing design does not shift the length of the OTA in any way, as the optics themselves move within the telescope as opposed to the camera moving. This prevents vignetting seen with traditional rear mounted focusers, and allows for a better redistribution of weight for improved balance of your optical assembly during your night of imaging. This WIFD apparatus offers the ability to automate your astrophotography set up with an electronic automatic focuser as well! When pairing this innovative technology with the high quality Petzval design of the RedCat series, William Optics delivers a telescope with outstanding astrophotography performance.
Designed to be the best, affordable, small, lightweight and fast Apochromatic refactor for astrophotography. The unique optical design includes the highest quality glass for the best possible color correction and flat large image circle. The result is a 51 mm objective lens, in a sleek Petzval design, for a full-frame image.
| Focal Length: |
250mm |
| Diameter: |
51mm |
| Aperture: |
f/4.9 |
| Focuser: |
WIFD (WilliamOptics Internal Focus Design) |
| Image Circle: |
48mm Full Frame |
| Tube Length: |
298mm (Fully Extended) |
| Tube Weight: |
1.77 kg |
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Includes:
- William Optics 51mm Gen 3 RedCat
- Dust Cover with Bahtinov Mask
- 210 mm Vixen Dovetail
- Mounting Ring
- Soft Carrying Case
- Dew Shield
- Tilt Adjuster
- Camera Angle Rotation Device
- Saddle Handle Bar
