Has anyone tried to use a Fresnel Lense in conjuncture with the SunRocket Solar Thermos and Kettle? The Fresnel Lense would magnify the sun's rays? Th
1519946
I have not used it, but I found that the Solar Thermos heated water quite quickly on it's own.
1519947
Works great. The water heats up faster than the instructions indicate on the box. They need to make one with a greater volume capacity.
1519948
This works very well and it gets hot pretty quickly because there is focused even light ...I wonder if the fresnel would be a focus problem when curved.
1853739
The answer is NO! You can buy solar filters for the objective lenses, but not for the eyepieces.
1937559
I waited for a sunny fairly warm Saturday, as you need good direct sun for at least 1 hr. in cold weather. I also ran my vehicle with the defroster on to warm windshield on inside, used a hairdryer to make sure outside glass was dry & warm. I blew out stone pit with air compressor for extra safety. Kit should work well, epoxy hardened is sun OK. I had a problem with a defective pump, otherwise I think it is a great kit to fix a small crack. There is a youtube video that shows all just search blue-star.
591910
I have used a teleconverter on the front of the Sony 50-210 lens, typically at 200mm setting. My TC has a significantly larger diameter front lens, therefore there is no loss of light. It is a 1.7x. Works surprisingly well - on a test target and in the field. Much better than I thought it would. And, you have the benefit of OS in the base 50mm lens. If you decide to purchase one, get a good one = expensive. The cheepos will certainly cause distortion. And yes, these add a few more layers of glass. I really wouldn't go past a 1.7x. It is time for Sony to grind some glass for E-mounts that goes to 300, even 400mm. I have used a teleconverter on the front of the Sony 50-210 lens, typically at 200mm setting. My TC has a significantly larger diameter front lens, therefore there is no loss of light. It is a 1.7x. Works surprisingly well - on a test target and in the field. Much better than I thought it would. And, you have the benefit of OS in the base 50mm lens. If you decide to purchase one, get a good one = expensive. The cheepos will certainly cause distortion. And yes, these add a few more layers of glass. I really wouldn't go past a 1.7x. It is time for Sony to grind some glass for E-mounts that... » Read More I have used a teleconverter on the front of the Sony 50-210 lens, typically at 200mm setting. My TC has a significantly larger diameter front lens, therefore there is no loss of light. It is a 1.7x. Works surprisingly well - on a test target and in the field. Much better than I thought it would. And, you have the benefit of OS in the base 50mm lens. If you decide to purchase one, get a good one = expensive. The cheepos will certainly cause distortion. And yes, these add a few more layers of glass. I really wouldn't go past a 1.7x. It is time for Sony to grind some glass for E-mounts that goes to 300, even 400mm. « Show Less
542510
I have not. However, I am impressed with the wide fill of the light. It's hard to tell in the city, but it doesn't appear to have a significant hot spot that would cause problems for mountain biking. So far I'm really impressed -- great build quality, great settings, etc.
1099580
Hi I use a black speckled enamel pot used by other solar ovens and it wors well. Am going to try cast iron. Think it will take a while longer to reach max heat.
485030
In my experience this is definitely an issue. Very pronounced sun flares to the extent I am considering returning the lens. It is not always possible to "be aware of your positioning" to resolve the problem. Yes, you can take a picture of something else I suppose and turn your back on your intended capture if the sun is anywhere in the sky. I have used the lens at all times of day and it makes no difference.
1588721
Not that I know of. I have the same issue. I use my M3 with my close-up lens/attachment. Bright sun with the zoom works for some objects.
1593123
The only heat issue i have had is from the sun coming in the windshield, so i made a cover out of cardboard to insulate it from the suns heat. I also painted the cardboard black to make virtually not seen from the outside. I did cut holes for the lens and the power cord and mounting bracket clip. Unit is working very good and i am in Arizona and it has been in the high 90,s already.
301991
Bad idea. What I mean is the technology uses some type of beam and it may be very damaging to the eyes. I would never point at someone's face. Not worth the risk, society no longer accepts grandma's old fashion Mercury thermometer, even a well made one. In my day we would break open toys or thermometers to play with the Mercury. Society will not burn you at the stake if you buy a cheap thermometer at your nearest pharmacy or on-line - you should be able to find for under $25, usually don't last very long. Read the reviews and pray it will work when you need it too.
674940
First of all, do not attempt to view the sun with any telescope or binoculars unless you're certain of what you're doing, as doing it wrong can result in permanent eye damage! Nor should small children try to view the sun, even with the proper filter. The correct kind of filter goes over the end of the telescope, not on the eyepiece. It has to be the correct size. I don't see one made for this telescope on Orion's website. I'd suggest calling them.
485031
I would not consider it a issue. But use the provided hood and be aware of your positioning, or use a polarizer, or a ND filter. I have not had any problems with sun flare with mine.
679531
there are glasses that you can wear that help you see the laser line but I am not sure how well they will work in direct sunlight.My experience with this fine tool would say no to outside.... hope this helps
2223753
The Schmidt-Cassegrain telescopes like the Nexstar 6" - 8" are not meant to view the Sun directly. If you want a "filter" there is the Celestron UHC / LPR Filter 1.5"
426313
My current HotShot is new and this has not happened. However, my older one (still in use 10 yrs at office) darkened and I have not experienced any problems as a result. I would not be worried if it happened with my new one but the questions should be put to Sunbeam. Other responses offer good suggestions, IMHO.
349753
I am nearsighted myself, so I can see the moon either with or without my glasses by adjusting the focus. However, the way a hand shakes holding a monocular makes extended viewing difficult. One would need a tripod or a telescope to steady the image.
1198953
I fully agree with your idea. I bought a "Wide Angle Lens for MagicShine, Gemini, and many other Bike Lights / Headlight" by ACTION LED LIGHTS about a year ago and have been very happy with it. With the light you are looking at, it can replace the original flat glass lens or fit over it. You unscrew the metal ring that holds the lens over the LED bulb, replace the lens with the diffuser (or put the diffuser over the lens) and screw the ring back on being sure that the rubber o-ring stays in position and the bars molded into the diffuser stay vertical. Easier to do than to explain. Pattern is quite even and spread is good for bike paths and roads. Might be a little narrow still for boonie-crashing. Preserves weather seal on the lamp if you are careful with the o-ring. not bad for five bucks!