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Old 23-10-2017, 02:20 PM
Jasp05 (Aaron)
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Jasp05 is offline
 
Join Date: Nov 2016
Location: Rockhampton
Posts: 226
Skywatcher Star Adventurer - Unguided Focal length & Exposure times

Hi guys,

I considered buying a star adventurer for quite a while but in the end decided to build a home made tracker. (Not a barn door type, but more like a traditional EQ mount).

I'm curious to know what kind of performance people can get from the star adventurer unguided as a comparison to my homemade tracker.

After my first night out with very little in the way of polar alignment performed. (I can't see the pole, therefore I guess in the direction of south and use an app on my phone to set latitude) was able to get what I thought was pretty decent results for an unguided platform.

tested initially at 18mm on an aps-c sensor and was able to do 2.5 min subs.

When i tried longer focal length of 50mm i noticed alignment was a bit out so made a small adjustment and was then able to go up in focal length again to 135mm (200mm equivalent on crop sensor) and was getting acceptable results at 60-90 sec subs.

With a proper PA and some more careful setup (My latitude adjustment was slipping throughout the night) I'm hoping to get to 2-3 min at 200mm unguided.


Can anyone comment on the performance of the Star Adventure (without guiding) and what focal lengths your using?
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