here are the links:
Vixen Polarie Manual Online: Star-Scape Photography Mode. If this mode is selected, the Polarie tracks stars at half the speed of the diurnal motion of the stars. The terrestrial objects are trailed less as compared with images taken by wide-field photography at a given exposure time.
www.manualslib.com
View attachment 42629
there is a difference if you are taking pictures only of stars (and rotate the camera on such device) or if you take pictures of nightscapes where you want to have a foreground and pehaps even to lighten it or light-painting it. Foreground stays on the ground ;-) and stars are moving. Actually it is the other way around
![Face with tears of joy :joy: 😂](https://cdn.jsdelivr.net/joypixels/assets/7.0/png/unicode/64/1f602.png)
but you've got the point ;-)
Polarie will hold a smaller camera like Z6 with wide-angle lens. And ok, that 18sec is for the camera
already mounted and rotated on the polarie/star-tracker device! If you don't have the device than the camera will be standing still and the speed will be shorter.
Last years I didn't take a polarie with me becasue it is a small but very heavy piece of equipment! So, I just know from the experience that in Botswana I need to use 13sec for the best case (max. 14sec) for 14mm lens to get stars like points.
I can post some pictures later.
Look at this channel if you'd like to know more about nightscapes and light-painting:
https://www.youtube.com/channel/UC-KNiVo4X76cJIMphH1lEdA/videos
I think it is the best or one of the best channels for this theme.
You can also shoot time-lapse. Here is my short time-lapse from Botswana:
We can talk about settings if you are interested. For time-lapse you can user longer exposure (15sec) becasue on the video you don't realise that the stars are not points.
Look at this video of Pangolin, they did a great job in Cubu Island!
I hope, you are very motivated to buy that lens now!
![Big grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
and go shooting