A new firmware update for the S30 and S50 Seestar telescopes (that I know at least 3 readers now have) now offers more options for exposure times, from 2 seconds to 60 seconds. Previously, 30 seconds was the maximum exposure time available for each "sub".
I had my doubts about the feasibility of being able to make a full-minute exposure from a suburban location but, with a clear moonless couple of nights, and the Rosette Nebula high overhead, I was able to put the S30 to the test
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| 480 x 30 seconds vs. 240 x 60 seconds (Click for larger image) |
Both photos show 4 hours of exposure time on the Rosette Nebula and were made from my driveway in light-polluted central Florida.
The photo on the left was comprised of 480 30-second exposures; the photo on the right is 240 60-second exposures.
I personally prefer the image on the left for this particular target - the 60-sec exposure image has too many stars, interfering with the beauty of the nebula.
However, if this comparison was done on a galaxy - which consists entirely of stars, not nebulosity - the longer exposure image would show much greater detail.
If you're thinking about buying an S30, be aware that an S30 Pro is now available for pre-ordering. Numerous websites and videos explain the differences - here is the best video on that topic.
Happy New Year.
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