Lunt Engineering 70mm ED Doublet OTA
This Lunt Engineering 70mm f/6 ED Doublet OTA is an excellent telescope for either traditional nighttime viewing of the solar system or for viewing the sun with a solar filter. Fully multi-coated eyepiece lenses for reduction of unnecessary light being reflected back by the lens. Includes a 10:1 Crayford style focuser, making focus adjustments much easier, and a 2" to 1.25" adapter for better deep sky imaging.
Lunt Engineering 70mm ED Doublet OTA Features...
- Focal Ratio: f/6
- Focal Length: 420mm
- Fully multi-coated lenses
- 10:1 Crayford style focuer
- 2" to 1.25" adapter
- Hard side carrying case with fitted foam
- Diagonal not included
Note for mounting: The holes are tapped for ¼-20 . The spacing is 17.5mm from the outside tapped holes to the center.
Lunt Engineering Product Number: LE70-OTA
- Additional Information
SKU LS-LE70-OTA Manufacturer Lunt Solar Telescope Series Lunt Engineering Warranty 5 Year Warranty Optical Design Refractor - Achromatic with ED Glass Telescope Aperture 2.8" Telescope Focal Length 420mm Telescope Focal Ratio f/6 Finder Included None Power Adapter Included None - Does Not Require Power Mount Type None - Optical Tube Only Focuser Size 2" Focuser Style Crayford
- Included Items
- Lunt Engineering 70mm ED Doublet OTA
- 10:1 Crayford Style Focuser
- 2" to 1.25" Adapter
- Soft Carrying Case
- Questions & Answers
Product QuestionsQuestion by: AlaninNy on May 24, 2014 6:40:51 AMI will check with Lunt to see if they have any multispectral focal shift information, but I am not sure they have the graphs handy. Even if they do, I am not certain that they have a comparison chart for a BK7/F2 doublet of equivalent aperture and f/ratio. I will forward the information I can get from the manufacturer.Answer by: Chris (Admin) on May 27, 2014 12:41:33 PMQuestion by: Robny on Aug 7, 2014 8:28:55 AM
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