Subject: New! Redcat 71mm just released
Williams Optics Is the cats meow once again!
They have just released the spanking brand new
William Optics RedCat 71!
William Optics NEW Redcat 71mm
Riding on the coattails of the mighty successful Redcat 51 , here comes the Redcat 71mm.
The William Optics RedCat refractor continues to be immensely popular, but if you'd like more aperture, a 71 mm f/4.9 RedCat is now available! This beautifully designed Petzval astrograph sports four optical elements in a three group configuration (2-1-1).
The doublet front group is made of FPL-53 glass, followed by one central element and a rear lens. This optical design produces a flat image plane on its own, with an image circle of over 45 mm, without the need for a flattener. With an image circle this big, the RedCat 71 is compatible with full frame or APS-C sensors.
The William Optics Cat71 comes with a built-in Bahtinov mask to assist in focusing, and a calibrated helical focuser. The lockable helical focuser has a large surface area that makes it easy to focus, even with gloves. It's gear ring has 153 teeth, which is more precise than most camera lenses.
Behind the focuser is a camera angle rotator with tension knob and a tilt adapter, which ends in M48 threads.
The RedCat 71 comes complete with a saddle handlebar on top. This handle accepts accessories such as a finder or guide scope but is raised above the focuser enough to serve as a carry handle.
A pair of super sturdy mounting rings are also included and attach to an Arca Swiss/Vixen style plate, making it easy to connect the Cat71 to a telescope mount or heavy-duty camera tripod.
When you're not using your telescope, you can store it in the included soft carry bag!
Specifications:
Focal Length: 348 mm
Diameter: 71 mm
Focal Ratio: f/4.9
Image Circle: >44 mm
Focuser: Helical with 2GT Gear Ring
Tube Length with Dew Shield: 435 mm
Weight of OTA: 2.8kg / 6.2 lb.
Weight of OTA with Hardware: 3.7kg / 8.2 lb.
Now available just in time for the holidays.
Here is the link:
The Cats Meow!
Clear Skies
Ray Khan
They have just released the spanking brand new
William Optics RedCat 71!
William Optics NEW Redcat 71mm
Riding on the coattails of the mighty successful Redcat 51 , here comes the Redcat 71mm.
The William Optics RedCat refractor continues to be immensely popular, but if you'd like more aperture, a 71 mm f/4.9 RedCat is now available! This beautifully designed Petzval astrograph sports four optical elements in a three group configuration (2-1-1).
The doublet front group is made of FPL-53 glass, followed by one central element and a rear lens. This optical design produces a flat image plane on its own, with an image circle of over 45 mm, without the need for a flattener. With an image circle this big, the RedCat 71 is compatible with full frame or APS-C sensors.
The William Optics Cat71 comes with a built-in Bahtinov mask to assist in focusing, and a calibrated helical focuser. The lockable helical focuser has a large surface area that makes it easy to focus, even with gloves. It's gear ring has 153 teeth, which is more precise than most camera lenses.
Behind the focuser is a camera angle rotator with tension knob and a tilt adapter, which ends in M48 threads.
The RedCat 71 comes complete with a saddle handlebar on top. This handle accepts accessories such as a finder or guide scope but is raised above the focuser enough to serve as a carry handle.
A pair of super sturdy mounting rings are also included and attach to an Arca Swiss/Vixen style plate, making it easy to connect the Cat71 to a telescope mount or heavy-duty camera tripod.
When you're not using your telescope, you can store it in the included soft carry bag!
Specifications:
Focal Length: 348 mm
Diameter: 71 mm
Focal Ratio: f/4.9
Image Circle: >44 mm
Focuser: Helical with 2GT Gear Ring
Tube Length with Dew Shield: 435 mm
Weight of OTA: 2.8kg / 6.2 lb.
Weight of OTA with Hardware: 3.7kg / 8.2 lb.
Now available just in time for the holidays.
Here is the link:
The Cats Meow!
Clear Skies
Ray Khan