1.25" Feather Touch Focuser
What our customers are saying
Lunt LS60FHa H-Alpha Filter
I own the LS60FHa/B600D1 and currently mount it on a Televue Ranger. The views of the sun and its activity is amazing. You can easily tune the filter to adjust between watching prominence eruptions to getting cleat views of sunspots. I hope to be able to change my mounting to my Stellarview SV102ED soon. You won't go wrong by purchasing this incredible filter.
- telegeek-64View Product
SUNOCULARS (MINI) YELLOW
Rather than pay $40 or more for filters to go over my regular binoculars--and worry about them falling off or getting lost--I decided to get these.IMHO they're not toys. They're not junk. The lenses are glass and the image is clear and sharp. It's an honest product. It's not plastic Spiderman toy binoculars with filters. I get the impression someone thought about designing them for their purpose.Many compromises that would make them disappointing as general-purpose binoculars don't matter for their intended purpose. They're Galilean, non-prismatic. The field of view is small, but there would be no benefit to it being larger. The lenses do not appear coated, but light loss is obvoiusly not an issue, nor is this a situation where you are going to be trying to view delicate dim objects while something else bright is shining into the lenses. The lenses focus individually, which is slightly less convenient than center-focus-plus-right-eyepiece, but--you are only going to focus them once!I think the lenses are achromatic; I couldn't detect any trace of color fringing looking either at the sun or at a bright LED headlamp shining straight into binoculars.At first (i.e. during my first minutes of use) I found it a little bit hard to _find_ the sun, because of course you can't see _anything_ else, the field is totally black. It will also take a bit of practice to learn not to catch a momentary direct glimpse of the sun when bringing the glasses up to my eyes or putting them down.I can't make any judgements of their safety. The manufacturer says it uses "OD-5" filters which I assume means optical density of 5, reduces brightness to 1/100,000. It seems, on quick Googling, that the surface brightness of the sun is 3*10^9 nits, so the filter should reduce that to 30,000 nits, which is five times as bright as the full moon (6,000 nits). It's about the same as the cardboard "eclipse viewer" glasses I have, and maybe a bit brighter than the daylight blue sky. The sun looks like an orange-yellow disk, neither dim nor bright. I have to trust that it is attenuating the invisible infrared and ultraviolet, too; the manufacturer says it does, "The light of the Sun is reduced to a comfortable 1×10-5%[sic] transmission and all ultra-violet and infrared components are completely and safely blocked." (They probably didn't mean to put that percent sign!) Anyway, they're a US manufacturer and their other products are serious sun-observation gear, so it's not like buying it from a toy company.To be honest I'm not really sure what I expect to see! I'm hoping to see the solar eclipse this year (2017) and of course I'll be watching the partial phases, and I suppose it will be fun to be able to see that first tiny sliver of sun disappear. There are no sunspots today (according to a real-time website) so I can't tell you how easy it is to see sunspots with these.The only thing I worry about is the public impression I will make looking at the sun through what seem to be binoculars--setting a bad example if any kids are watching, who might not understand just how dangerous it would be to look at the sun through regular binoculars. I guess I sort of wish they had put great big labels on them saying "SPECIAL SUN-VIEWING BINOCULARS."
- merchantsView Product
Andreas Murner (unknown)
Beautiful capture and processing. Outstanding detail on the outer Proms. Well done.
- Ghostrider357View Product
Lunt LS50THa 50mm Pressure Tuned H-alpha Telescope
I received my LS50 B600 yesterday. I attached a TeleVue Sol Finderscope (not included) and dovetail rail (not included) and mounted to a Twilight I mount. In between clouds, I was able to get in a few peeks at Ol' Sol using a Lunt variable zoom eyepiece (7.2mm - 21.5mm).After a few minutes, I was able to get the Sun into focus then it "popped" into fine view as I tuned it with the Pressure Tuner. Despite the inactivity of the Sun at the moment, I was able to get a fantastic view of a Sunspot coming around the side of the Sun as well as a few small prominences. Despite their very small size, the Lunt LS50 gave me a spectacular view of a those prominences. This might be addictive....At 21mm to 10mm, I was able to get really good full disk views of the Sun. The spicules were very very faint but really came into view after my eyes adapted after about 5 minutes. I can already see a double stack in my future.It's true about what all the reviews said about the helical focuser. It's not great but it works fine. I have already ordered the Feathertouch from Lunt- another $250 but I think it will really be worth it.I realize this scope is just going to get better as I get more and more experience balancing tuning and focusing! I have viewed through a LS80 (Lunt 80mm) before and honestly, I'm VERY satisfied with the 50mm for now (especially the price vs the 80mm). FOR NOW! 🙂Again, I'll save my pennies for a Double Stack and see where this hobby takes me.Any questions about it please ask! serpensphile at gmail.com
- David FreemanView Product