États-Unis, Torrance · founded in 1960
The only genuinely large diameter, and the only one conceived as a fixed observatory.
The veteran. Celestron has been making telescopes since 1960. The brand comes late to the smart telescope. It is the only one to offer a large diameter. A 152 mm mirror working at f/2.2, in an in-house RASA design. This is no longer a device you put in a rucksack.
Rapport d'ouverture : the focal length divided by the diameter, written f/, and the smaller that number, the faster the image forms.
not tested In this catalogue: no shots at all. Entry built on public sources.
0 · aucune donnée de première main
0 towards 165h · hours I have logged with this device, this is not a rating
The range
Monture azimutale : it moves in altitude and in rotation, but the field turns during the night.
f/2,2 · Sony IMX178 STARVIS
A 152 mm mirror working at f/2.2, in a RASA design. Image processing on board, automatic StarSense alignment. It is the only large diameter of the devices compared here.
the reference for the equivalence: the fastest in the panel
This equivalence says nothing about resolution, about the field or about optical quality: f/2,2 on 152 mm and f/5,3 on 30 mm do not photograph the same objects. Worked out from the published focal ratios alone, with sensor, sky and target held identical.
Images made with this brand
No device from this brand has been used to make one of my images. The space a gallery would take stays empty, and it says so: nothing is borrowed from a press release or from a stock library to fill it.
0 images · space left empty
Following this brand
This page does not copy out a press release. Here is how it is made, and what it does not claim to know.
