Product Overview
Sharpstar 76EDPH is the second arrival to the Sharpstar EDPH
family. It has caught the spotlight for its aesthetic and streamline appeal
since its entry to the market. Sharpstar 76EDPH features triplet air-spaced
lens structure, including an ED(extra-low dispersion) glass ensuring an
pleasing application in both visual observation and astrophotography. This can
effectively eliminate the chromatic aberration thus produce more detailed and
higher-contrast images.
The aperture size is 76mm, and the focal length is 418mm, so
the focal ratio is f/5.5. The whole length of the main tube is only 332.9mm
when used with the dew shield contracted. Its compactness makes it a great
companion for your outdoor sky observation as it can be easily packed in the
travelling bags and brought onto the planes.
The rigorous and precise optical and mechanical design is the
warranty for the performance of Sharpstar 76EDPH. A dedicated 2.5" f/4.5
full-frame reducer makes the ingenious device further ascend among the
high-end, fast-focal-ratio astrographs.
Specifications
| Optical design | Apochromatic triplet air spaced |
Objective diameter | 76 mm |
Focal length | 418 mm |
Focal ratio | f/5.5 |
Resolving power | 1.58 arc second |
Stellar limiting magnitude | 11.4 |
Max. magnification | 152 x |
Light gathering power | 118 times the human eye |
Mount attachment | Vixen bar (150 mm long) |
Focuser | Rack & pinion dual speed (10:1) 2.5" diameter |
Camera connection | M74 x 1, 2", 1.25", M48 x 0.75 (with flattener) |
Backfocus | 55 mm from flattener (sold separately) |
Tube weight | 2.9 kg (including tube rings and dovetail bar) |
Tube length | 333 mm |
Tube diameter | 90 mm |
Dew shield diameter | 100 mm |
SKU | SS-76EDPH |
