My interest is amateur astronomy, where the preservation of night vision is critical, so the red light setting is most important. My question: would the red light setting produce enough light to view star charts at night under a completely dark sky?
1336349
Gordon, here is your solution: http://www.amazon.com/LRI-PPRO-Proton-2-Colors--Flashlight/dp/B001CZ9CCO/ref=sr_1_sc_1?ie=UTF8&qid=1396514471&sr=8-1-spell&keywords=pri+proton+pro This is the only option for reading astronomy charts in darkness. The red LED starts out at its dimmest setting (which is extremely dim) and can be adjusted to any level between its lowest and brightest setting. Includes a white light too which is perfectly adequate for navigating in the dark. Its dim setting is also extremely low!
750878
The red light for this lantern is very bright. You should be able to read a chart with it's red light on.
49158
Sun shining on sensor, then cloud passing by, might set it off, due to heat change. And daylight has no different effect on sensing object than at night, basically. The red sensor light is hard to see days and at night, its' short flash is easily missed.
925332
No. You just have to track the reflected laser red dot, which is very hard / impossible to see in bright sunlight at any significant distance. Works great at dusk outside over long distances, like the height of a 75Ft tree for example, and inside, of course.
1797500
Yes, kind of. I am an appraiser and use my Bosch to measure houses. I can usually see the red light in bright sun but it is NOT easy. I finally bought some red Dewalt glasses and it helps some. In a nutshell I have never NOT been able to measure a house on any day, sunny or not, but it goes much faster with at least some shade.
1311666
It is good for night photography above f/5.6. Not that sharp edge to edge below f/5.6. Also, light sources will have six pointed stars, which look unnatural. The 16-35/2.8II has 14 pointed stars.
1585850
Yes on a good night, Jupiter is a clearly visible disc, and it's moons are very bright points of light with this telescope. You can even just get a make out the colored banding. Stars are still stars of course - to far away. But some objects like galaxies that look like a star to the naked eye are obviously larger more diffuse objects with this.
1988319
No, but the backup lights on my Expedition prove plenty of light to see at night. The camera has a fantastic color resolution! It's small size makes it look like a factory installation.
1766629
No, it has to be illuminated. The illuminated red/green is 4 different times of low light situations, like green for low light like dusk and red for dark or haze. The illumination hi-lights the reticle scale. When not lite the scale will read black, that's for basic daylight.
332810
As with all IR lights I am aware of, there is a dull red glow if you look directly at the emitters at night. This camera has fantastic night vision.
1048187
Yes, it will throw light at night. Be aware of the inverse square law which states that the intensity of light decreases with the inverse of the square of the distance. In English, it will illuminate a person standing close to the camera, but it will not iluminate the mountains in the background. You will get the most pleasing light patterns if you swivel the flash head and bounce the light off a nearby surface, which will reduce the harshness of any direct flash. It's a cheap flash, it throws a decent amount of light. It's suited to the amateur market, not of professional quality.
514173
Certainly works well as an astronomical pointer. Has no brightness control, so a little bright for deep sky objects, but great in pointing to brighter objects, and $20 less than any comparable red dot finder from Orion and other astronomy companies. Use a large clamp to hold it and align with scope tube.
699440
I am using this to supplement a Night Vision camera. It has a decent angle and covers my drive way. When looking at it, it is a red square of lights, noticeable but not bright. When seeing it on night camera it is a large spot light. I have not found a good final placement yet, so not sure if it will end up meeting all my needs. The one area of concern is that it is on from dusk to dawn, have not figured out the energy consumption yet. Would be nice if I could tie it into the Camera motion sensor
2126639
Really depends on your location, the further you are from light pollution the better. This scope will see brighter deep sky objects, such as the Orion nebula, crab nebula and ring nebula, and these will appear as smudges, not as dots (stars appear as dots, nebula are free floating gasses illuminated by nearby stars). Even in larger scopes that are designed for deep sky 8 or 10 inches in aperture or more, you won't see that much detail but will be able to detect dimmer deep sky objects. Not until you get a scope which is 14 inches or more in diameter and minimal light pollution do you get good detail in fainter objects while viewing.
602909
Pretty much just the Moon. Planets and other stars do becoming brighter. (brighter dots) They're pretty decent for terrestrial viewing too. For a beginner just starting out.. They're totally worth it. You'll know if you'd like to continue with the whole "amateur astronomer" thing. =)
1035600
You will have to try different light etc. I do not know about low light or nights. During daylight it works just fine
1187458
Almost all night vision IR lights emit a red glow when they are active and recording in the dark - that's just how they work. Without the IR lights, it wouldn't be able to record in the dark. You can cover them up with black electrical tape if you didn't want to use the night vision function, but then you'd be better off just buying a non-night-vision camera in the first place and saving some money.