Search results for 'astronomy astrophotography cameras not-cooled-cameras si'

$Askar FRA300 60mm f/5.0 Refractor$ $Askar FRA300 60mm f/5.0 Refractor$
Askar FRA300 60mm f/5.0 Refractor
US$ 1,146.04

The best seller of the quintuplet series, the FRA300 60mm; It is an instrument suitable for astrophotography.
Thanks to the quintuplet spaced in the air, it provides a flattened field up to 40mm diagonally without the addition of further flatteners/reducers.
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$Askar FRA500 90mm f/5.6 Refractor$ $Askar FRA500 90mm f/5.6 Refractor$
Askar FRA500 90mm f/5.6 Refractor
US$ 2,116.52

The best seller of the quintuplet series, the FRA500 90mm; It is an instrument suitable for astrophotography.
Thanks to the quintuplet spaced in the air, it provides a flattened field up to 44mm diagonally without the addition of further flatteners/reducers.
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Askar FMA180 PRO Telephoto Lens F/4.5
US$ 440.25

Askar's FMA180 PRO is a triplet APO refractor with double ED glass for excellent correction. The high-quality lenses produce a high-contrast, pure color image and meet the highest demands in astrophotography and observation.
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Askar Reducer 0.6x for 103 APO
US$ 352.02

The 0.6x reducer can bring the focal ratio of the Askar 103APO to F4, also providing field flattening. Askar 103APO adopts a detachable tube design, where the back of the tube can be removed when using the 0.6x reducer, allowing the telescope to have the length needed to achieve an F4 focal ratio.
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