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This is a RedCat 51 is in excellent condition, with clean optics and an body, with one small exception. The final ring before the back end has some nicks and wear and tear; Obviously, this will not affect the optics or use of the scope, but we have discounted the price accordingly to reflect this slight condition issue.
The scope comes complete, and includes the RedCat handlebar, in its original soft-sided foam-lined case.
We can ship this item to you.
Probably the very sharpest 250mm camera lens you will find!
- Newest version (including camera angle adjuster, cat paw scope clamp, DSD dovetail bar, and focus tensioner)
- 51mm quadruplet ED APO f/4.9 (250mm fl)
- FPL53 & FPL51 glass
- 3.2 lbs tube weight.
- >43mm imaging circle with a flat field edge to edge for full-frame sensors
- Dual Vixen and Arca Swiss Dovetail
- M48 thread to accept wide t-rings/t-mounts
Features
The best value, highest quality 250mm lens you will find for your camera.
51 mm lens, in a sleek Petzval design, using Synthetic Fluoride (FPL53 and FPL51) glass for a full-frame flat field image. The optical quality provides exceptional performance at a fast focal ratio of f/4.9.
Filter Adapter allows use of 48mm filters. Focusing is made easy with a bahtinov mask integrated into the lens cap.
Specifications
| Aperture | 51 mm (2") |
|---|---|
| Camera/Eyepiece Connection | Male M48x0.75 |
| Dawes Limit | 0.46 arcseconds |
| Focal Length | 250 mm |
| Focal Ratio | f/4.9 |
| Glass Type | FPL-53 and FPL-51 |
| Highest Useful Magnification | 102x |
| Light Gathering Power | 53x |
| Limiting Magnitude | 12.3 |
| Optical Design | Petzval |
| Tube Color | Red |
| Tube Diameter | 51mm |
| Tube Weight | 3.2 lbs |
| Dew Shield Outer Diameter (for soar filter sizing) | 80.5mm |
In The Box
- RedCat 51mm Telescope
- Bahtinov Mask Cap
- 210mm Dovetail
- Upgraded Mount Ring (with cat paw logo)
- Soft Carry Case