[SJAAboard] our solar scope's H-alpha filter

[Mark Wagner]

Gary Mitchell wrote:
> I beg to differ about those little PSTs being useful.  I looked through
> a couple of them at Houge a while back (solar event) and was NOT
> impressed.
That is of course a matter of opinion.  I've found views through the 
small PSTs acceptable, especially given how relatively inexpensive they 
are.  If the DayStar required the same repair again, it would be about 
the equivalent of having purchased a new PST, roughly, I believe.  If 
the Etalon filter needs repair in the future, it might make sense to 
replace the DayStar with a PST and get the warranty and ease of use.   
Do we know what sort of warranty comes with the proposed DayStar repair?

> I don't remember what the bandwidth is on our filter.  Since we can
> easily see detail in the sun's surface, it must be 0.6 Angstroms or
> better.  So a new one would cost $2600 or more.
> (www.daystarfilters.com/hydrogen.shtml)
>   
In other words, about the cost of a new larger Coronado scope, right?

I don't really care which way this one goes, personally, the only time I 
look through a solar scope is when I'm at a big star party and an owner 
has one set up, and then I don't spend much time (my observing 
preferences are well known).  But I had heard comments about the DayStar 
being finicky about temperature, and possibly tuning.

I just suggest looking at the cost of a larger Coronado compared to the 
warranty and potential future repairs on the DayStar.  The current 
repair cost is certainly ont prohibitive.

Mark