Product series:
Optimised apochromats for full-frame cameras
The SD-Apo series of apochromatic refractors have a special SD lens element (super extra-low dispersion) made of FPL-53 glass. The premium quality is noticeable in the extremely clear and true-colour images it produces, for both visual observation and astrophotography. The inner baffles have been optimised to illuminate a 44mm format. In contrast to the ED series, you can also attach a full-frame SLR camera.
![Vixen Apochromatic refractor AP 81/625 SD81S II OTA](/Produktbilder/normal/4460_1/Vixen-Apochromatic-refractor-AP-81-625-SD81S-II-OTA.jpg)
Vixen
Apochromatic refractor AP 81/625 SD81S II OTA
$ 1,500.00
ready for shipping in 1-2
weeks
![Vixen Apochromatic refractor AP 103/795 SD103S OTA](/Produktbilder/normal/56273_1/Vixen-Apochromatic-refractor-AP-103-795-SD103S-OTA.jpg)
Vixen
Apochromatic refractor AP 103/795 SD103S OTA
$ 2,330.00
ready for shipping in 24
h