dor123
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| Are solar eclipse filters suitable for watching HID lamps run-up and their arcs changes as the pressure rises?
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Bulbman256
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Are solar eclipse filters suitable for watching HID lamps run-up and their arcs changes as the pressure rises?
Considering that they don't burn your retinas while looking at the sun, yes. |
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Collecting light bulbs since 2012, a madman since birth.
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dor123
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| The problem that I've seen, some of them changes the color of the sun, so they might be not suitable for watching HID lamps like MH and HPS warming up from close, and capturing detailed pictures of the arctubes.
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« Last Edit: June 21, 2020, 08:15:09 AM by dor123 »
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I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.
I only working with the international date format (dd.mm.yyyy).
I lives in Israel, which is a 220-240V, 50hz country.
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Bulbman256
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The problem that I've seen, some of them changes the color of the sun, so they might be not suitable for watching HID lamps like MH and HPS warming up from close, and capturing detailed pictures of the arctubes.
I have seen people use the coated glass out of a welding mask and it can show the arc pretty well. |
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Medved
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| Safety wise both welding filters, as well as solar eclipse filters (decent ones) are good.
For the color distortion, you have to try yourself. There I would give the "eclipse filters" better chance, as the welding gear really isnt designed to maintain any color.
Contrary, the welding gear is often deliberately made to contain blockers for certain lines, which tend to form a glowing haze in the welding arc area, so reducing the visibility of the metals (the rod, welded components, the pool,...) itself. These are designed for the brightest glowing elementd common in the weld area.
E.g. for glass work are designed filters absorbing mainly the Na D-line, which tends to make the torch flames glowing, obscuring everything on the work. Same for copper brazing (absorbing the copper green)
But it depends what you want to observe on the HID, sometimes you may benefit from such selective blocking too (looking just for the arc core,...)...
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Xytrell
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| Neutral density (ND) filters are common photographic optical attachments that are specifically designed to attenuate intensity equally across the visible spectrum. They're only a few dollars and come in a wide variety of attenuations.
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dor123
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| I need a filter that is suitable for both watching through unaided eyes and my camera.
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I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.
I only working with the international date format (dd.mm.yyyy).
I lives in Israel, which is a 220-240V, 50hz country.
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Bulbman256
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I need a filter that is suitable for both watching through unaided eyes and my camera.
In this video aroud 4 min in the person filming uses a peice of welding glass infrount of the camera to see the arc. |
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Binarix128
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I need a filter that is suitable for both watching through unaided eyes and my camera.
You can use welding glass number 12 or 14 like in the pic below  |
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Oliver
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| You could just watch the warm up through a camera
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Rommie
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| That doesn't always produce the best end result for a photo, though.
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Binarix128
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That doesn't always produce the best end result for a photo, though.
Watching the warm up through a camera gives good results. The bad news about the welder's glass is that you lost all the colors and only see green, but if you want to see the arc or a filament of a lamp is the best options, I reccomend glass number 12, 14 and up is too dark. |
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Ash
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| Project the arc onto a big screen (wall etc) using a magnifier lens. Also, would reflection from transparent glass drop the brightness well enough ?
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dor123
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| It is hard to me to project on a big screen. I want to watch and capture it directly using a filter.
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I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.
I only working with the international date format (dd.mm.yyyy).
I lives in Israel, which is a 220-240V, 50hz country.
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Ash
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| Projecting can be done with as little as a magnifying glass, and a mirror if you want to direct the projection more conveniently
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