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TWO MODELS OF PST CAK!? 1.0 and 2.0?

Posted: Mon Jun 04, 2018 10:10 pm
by TheSkyBurner
Okay this caught me off guard today, I unsnapped my etalon on my 2nd CaK pst and the etalon chamber is completely different from my first one

The blue ring is also a totally different blue color!

Clearly coronado made two different versions of CaK pst, I am not sure if the filters are different. But one is a deep well filter holder and the other is a shallow filter holder.

I am sure you will be equally perplexed when you see the images!

Enjoy this documentation of something you probably may have never known about.

The serial numbers are 50130 for the 1.0 and 50592 for the 2.0
blue 1.jpg
blue 1.jpg (238.75 KiB) Viewed 304 times
blue 2.jpg
blue 2.jpg (189.29 KiB) Viewed 304 times
etalon 1.0 - 2.0.jpg
etalon 1.0 - 2.0.jpg (154.75 KiB) Viewed 304 times
etalon 1.0 - 2.0 b.jpg
etalon 1.0 - 2.0 b.jpg (142.18 KiB) Viewed 304 times
etalon 1.0 - 2.0 c.jpg
etalon 1.0 - 2.0 c.jpg (165.1 KiB) Viewed 304 times
etalon 1.0 - 2.0 d.jpg
etalon 1.0 - 2.0 d.jpg (140.19 KiB) Viewed 304 times

Re: TWO MODELS OF PST CAK!? 1.0 and 2.0?

Posted: Mon Jun 04, 2018 10:12 pm
by TheSkyBurner
The black glue holding the delrin ring onto the filter cell is eerily similar to the glue that Lunt uses to hold their delrin rings............. Could this be a hint?
lunt coronado cak  etalon.jpg
lunt coronado cak etalon.jpg (29.41 KiB) Viewed 303 times

Re: TWO MODELS OF PST CAK!? 1.0 and 2.0?

Posted: Tue Jun 05, 2018 5:09 am
by marktownley
Interestingly different innards!