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Why Purchase from All-Star Telescope?
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Why we love the William Optics RedCat 51 WFID APO Petzval OTA (L-RC51RDIII)
Product Description
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.
What can I see with a William Optics RedCat 51 WFID APO Petzval OTA (L-RC51RDIII)?
Here are some simulated views of common objects. Results with your telescope will vary with viewing conditions, obrits, equipment and more.
Jupiter with
25mm Eyepiece - 10x Magnification
(Sold Separately)
Jupiter with
10mm Eyepiece - 25x Magnification
Sold Separately
Jupiter with
5mm Eyepiece - 50x Magnification
Sold Separately
Moon with 25mm Eyepiece
10x Magnification
(Sold Separately)
Moon with 10mm Eyepiece
25x Magnification
Sold Separately
Moon with 5mm Eyepiece
50x Magnification
Sold Separately
Andromeda with 36mm Eyepiece
7x Magnification
Sold Separately
Andromeda with 25mm Eyepiece
10x Magnification
(Sold Separately)
Andromeda with 10mm Eyepiece
25x Magnification
Sold Separately
What's in the Box
Specifications
Lens Type: 4 Elements Petzval Design
Focal Length: 250 mm
Diameter: 51 mm
Aperture: f/4.9
Image circle: 48 mm
Focuser: WIFD (WO INTERNAL FOCUS DESIGN) Compatible with EAF
Focus travel: 0-23mm (Ruler to 30mm)
Optional Flattener: No Flattener Required
Adapters: N/A
Lens Material: FPL-53
Camera Format: > Full Frame
T-Mounts Supported: Canon EF, RF Nikon F, Z Sony E Pentax K MFT (M4/3) FUJI X
Tube Length: 346 mm - 298 mm
OTA Weight: N/A
Total Weight: 2.38 kg / 5.25 lbs
