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TheTS-Optics 71SDQ f/6.3 it's a quadruplet refractor well corrected in all the aspects, ideal for wide field astrophotography and extended objects. It's composed of a riplet FPL-53 with a field flattener air spaced, well corrected on color and chromatic abberation. The three elements and the flattener are integrated and not removeable, this combination provides a well corrected and illuminated image field of 44mm ideal also for full-frame sensors.
The 2,5" rack and pinion focuser with micrometric dual speed has a M63x1 thread that allow the installation of the camera directly on the focuser, this guarantee a perfect and solid connection of the optical train and well aligned at the optical axis. It's provided with a rotating ring that helps to reach a desired orientation of the camera. The 50,8mm barrel with 31,8mm reduction barrel allows to install a star diagonal for visual use. The camera connection it's very simple, infact the field flattener has a male thread M48x0,75 to connect a T2-M48 ring of your DSLR camera or with a converter M48-T2 to connect a CCD camera. It can be easly carried in a travel suitcase thanks to his very small size and light weight, infact is only 450mmm long with the dewshield retracted and it weight only 3,2Kg rings and vixen dovetail bar.
- Telescope quadruplet FPL-53 with R&P 2,5" focuser
- Retractible dewshield
- Front and rear cover
- Support rings and Vixen type dovetail bar
|Optics||Tripletto FPL53 con spianatore integrato|
|Focal Length (mm)||450|
|Focal Ratio||f 6.3|
|Field flattener/corrector||Included and not removable|
|Focuser||2,5" pignone e cremagliera, micrometrico|
|Eyepiece holder||50,8mm with 31,8mm reducer|