Lunt Blocking Filters (which look like a simple diagonal under the eyepiece) are temperature sensitive. ?Lunt says they work down to 40¡ãF. ?But they don¡¯t snap on and off¨C mine works much better (I see lots more) at 80¡ãF. ?So I made an inexpensive thermostatically-controlled heater for it (see photo). ?That works great. ?Also Lunt made a heater (about $200) but it¡¯s discontinued. ?Dew heaters may be another way to go. ?Or some individual ?Blocking Filters may work well enough (or the climate is warm enough) not to need heat. ?Ted Forte can address that as his Lunt (same model as mine) uses no heater.
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Roy
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On 04/16/2025 2:50 PM EDT jimcoble2000 via groups.io <jimcoble2000@...> wrote:
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One last note. Daystar does use a power heater on their filters if that is any consideration, which it may not be. Some Lunts require heating too under certain ambient temps. Roy can address that as he has had to deal with that issue, if it matters at all. Coronado never required heaters due to a different design.
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On Wednesday, April 16, 2025 at 12:32:33 PM EDT, Shawn Loescher via groups.io <shawn.loescher@...> wrote:
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The ranger (Austin) in North Carolina that we work for their annual statewide star party is interested in getting an entry level solar telescope. Does anyone have suggestions?
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Do you think this one is better than the Coronado PST?
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If neither, can someone recommend one near the $1000 price point? I see High Point has a good selection but I'm not sure which is the best one to recommend to them.
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Does anyone know a good tracking mount to use with it? The club has the iOptron Cube and it works great. Unfortunately it has been discontinued or I would recommend it. I think they would rather have an easy to use tracking mount than manual but I am sure that Austin would be interested in any recommendations we can give him.
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Thank you!
