Podcasts about light update

Back in June I did a review of the StellaPro Reflex line of lights titled "Is This My New Favorite Light?". Well, today I've got an update. StellaPro has upgraded the hardware. The StellaPro Reflex lights are “Continuous Strobe Hybrid” LED lights. They allow you to do constant light, as you might do for video, or using digital burst mode you can use the lights like you would a flash. Technically, these are not flashes, they are LED lights, but they allow you to over-charge the LED and release all of that charge as a burst of light, a burst that can be up to 1 stop brighter than the constant light. And that constant light isn't just some weak modeling light, like you might have in a standard studio monolight. These are bright, very bright. After doing that deep dive review I was impressed. I mean, no product is everything we want, and there's definitely a wishlist I have in my head for these lights, but for me the pros outweighed the cons. And now StellaPro has made some interesting changes... First, they consolidated the Reflex line into one model, eliminating the standard Reflex (no S), and leaving only the Reflex S. There is a Reflex Studio too, but the light head in that model is the Reflex S. Secondly, they've increased both the continuous and burst power 50%, doubled the runtime, and made the light 50% faster – now delivering 30 fps of full power bursts without missing a burst. How much more do these upgraded lights cost you ask? Well, it's not more expensive. It's not even the same price. The upgraded lights are almost $250 cheaper! It actually feels weird writing that. An already good product is made better and they charge less? What the hell is the world coming to. The StellaPro Reflex S lights are now $849, and with the added power they're a pretty damn good deal - that is if they live up to the claims. Today we are going to test this new upgraded hardware, which comes in the form of a larger battery handle, and a firmware update to the light head. The Reflex Lights I will be using in this show were sent to me by Stella Pro Lights for the purpose of that original review show back in June, and the upgraded battery handles were sent to me for the review of the upgrade. Let me be clear though, they have not paid me further and this is not a sponsored review. I am free to have and state any opinions that I have, and StellaPro doesn't get to see this show before it goes live. This is just my honest opinion based on what I might look for in a portable light. As always, If you want a crazy technical review - that's not me, but there are a lot of those out there. Here are the various sections in the show, so feel free to jump around to the areas that interest you. 00:00 - Intro 01:21 - Disclaimers 03:11 - What is the StellaPro Reflex S? 04:09 - What Changed? 04:38 - The Upgrade 06:35 - Old vs New Battery 09:11 - Updated Specs 10:58 - Testing Intro 15:16 - Black Background Tests 19:45 - Block Wall Test 20:56 - Portrait Tests Intro 21:43 - Portrait Tests 24:30 - Light Falloff Test Intro 25:21 - The Falloff Setup 25:53 - Light Falloff Tests 27:01 - Wishlist 30:57 - Final Thoughts 32:33 - Outro Join me as I take a look at the recent update to the StellaPro Lights Reflex S. We'll take a look at the upgraded hardware, and check out the claim of 50% more power. Original StellaPro Reflex Review Mentioned in the Show (June 2023) Is This My New Favorite Light? A Review of the Stella Pro Reflex:YouTube.com Inverse Square Law Video Mentioned in the Show Digital Photography 1 on 1: Episode 59: Inverse Square Law:: Adorama Photography TV on YouTube Connect with StellaPro Lights Website: stellaprolights.com Facebook: @stellaprolights Instagram: @stellaprolights YouTube: @stellaprolights Connect with Steve Portfolio: stevebrazill.com Facebook: @SteveBrazillPhotography Instagram: @stevebrazill Twitter: @stevebrazill Mastodon: @stevebrazill

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Keepin' it real in this week's podcast. Enjoy! www.angellight.online | IG @angellightcandles

Welcome to The Nonlinear Library, where we use Text-to-Speech software to convert the best writing from the Rationalist and EA communities into audio. This is: Far-UVC Light Update: No, LEDs are not around the corner (tweetstorm), published by Davidmanheim on November 2, 2022 on LessWrong. I wrote a tweetstorm on why 222nm LEDs are not around the corner, and given that there has been some discussion related to this on Lesswrong, I thought it was worth reposting here.People interested in reducing biorisk seem to be super excited about 222nm light to kill pathogens. I'm also really excited - but it's (unfortunately) probably a decade or more away from widespread usage. Let me explain. Before I begin, caveat lector: I'm not an expert in this area, and this is just the outcome of my initial review and outreach to experts. And I'd be thrilled for someone to convince me I'm too pessimistic. But I see two and a half problems. First, to deploy safe 222nm lights, we need safety trials. These will take time. This isn't just about regulatory approval - we can't put these in place without understanding a number of unclear safety issues, especially for about higher output / stronger 222nm lights. We can and should accelerate the research, but trials and regulatory approval are both slow. We don't know about impacts of daily exposure over the long term, or on small children, etc. This will take time - and while we wait, we run into a second problem; the Far-UVC lamps. Current lamps are KrCl “excimer” lamps, which are only a few percent efficient - and so to put out much Far-UVC light, they get very hot. This pretty severely limits their use, and means we need many of them for even moderately large spaces. They also emit a somewhat broad spectrum - part of which needs to be filtered out to be safe -/ - further reducing efficiency. Low efficiency, very hot lamps all over the place doesn't sound so feasible. So people seem skeptical that we can cover large areas with these lamps. The obvious next step, then, is to get a better light source. Instead of excimer lamps, we could use LEDs! Except, of course, that we don't currently have LEDs that output 222nm light. (That's not quite true - there are some research labs that have made prototypes, but they are even less efficient than Excimer lamps, so they aren't commercially available or anywhere near commercially viable yet, as I'll explain.) But first, some physics! The wavelength of light emitted by an LED is a material property of the semiconductor used. Each semiconductor has a band-gap which corresponds to the wavelength of light LEDs emit. It seems likely that anything in the range of between, say, 205-225nm would be fine for skin-safe Far-UVC LEDs. So we need a band-gap of somewhere around 5.5 to 6 electron-volts. And we have options. Here's a list of some semiconductors and band-gaps;. Blue LEDs use Gallium nitride, with a band-gap of 3.4 eV. Figuring out how to grow and then use Gallium nitride for LEDs won the discoverers a Nobel Prize - so finding how to make new LEDs will probably also be hard. Aluminum nitride alone has a band gap of 6.015 eV, with light emitted at 210nm. So Aluminum nitride would be perfect. but LEDs from AlN are mediocre./ Current tech that does pretty well for Far-UVC LEDs uses AlGaN; Aluminium gallium nitride. And when alloyed, AlGaN gives an adjustable band-gap, depending on how much aluminum there is. Unfortunately, aluminum gallium nitride alloys only seem to work well down to about 250nm, a bunch higher than 222nm. This needs to get much better. Some experts said a 5-10x improvement is likely, but it will take years. That's also not really enough for the best case, universal usage of really cheap disinfecting LEDs all around the world. It also might not get much better, and we'll be stuck with very low efficiency Far-UVC LEDs, at which point it's probably better to keep using Excimer lamps. But fundamental research into other semiconductor materials could a...

Link to original articleWelcome to The Nonlinear Library, where we use Text-to-Speech software to convert the best writing from the Rationalist and EA communities into audio. This is: Far-UVC Light Update: No, LEDs are not around the corner (tweetstorm), published by Davidmanheim on November 2, 2022 on LessWrong. I wrote a tweetstorm on why 222nm LEDs are not around the corner, and given that there has been some discussion related to this on Lesswrong, I thought it was worth reposting here.People interested in reducing biorisk seem to be super excited about 222nm light to kill pathogens. I'm also really excited - but it's (unfortunately) probably a decade or more away from widespread usage. Let me explain. Before I begin, caveat lector: I'm not an expert in this area, and this is just the outcome of my initial review and outreach to experts. And I'd be thrilled for someone to convince me I'm too pessimistic. But I see two and a half problems. First, to deploy safe 222nm lights, we need safety trials. These will take time. This isn't just about regulatory approval - we can't put these in place without understanding a number of unclear safety issues, especially for about higher output / stronger 222nm lights. We can and should accelerate the research, but trials and regulatory approval are both slow. We don't know about impacts of daily exposure over the long term, or on small children, etc. This will take time - and while we wait, we run into a second problem; the Far-UVC lamps. Current lamps are KrCl “excimer” lamps, which are only a few percent efficient - and so to put out much Far-UVC light, they get very hot. This pretty severely limits their use, and means we need many of them for even moderately large spaces. They also emit a somewhat broad spectrum - part of which needs to be filtered out to be safe -/ - further reducing efficiency. Low efficiency, very hot lamps all over the place doesn't sound so feasible. So people seem skeptical that we can cover large areas with these lamps. The obvious next step, then, is to get a better light source. Instead of excimer lamps, we could use LEDs! Except, of course, that we don't currently have LEDs that output 222nm light. (That's not quite true - there are some research labs that have made prototypes, but they are even less efficient than Excimer lamps, so they aren't commercially available or anywhere near commercially viable yet, as I'll explain.) But first, some physics! The wavelength of light emitted by an LED is a material property of the semiconductor used. Each semiconductor has a band-gap which corresponds to the wavelength of light LEDs emit. It seems likely that anything in the range of between, say, 205-225nm would be fine for skin-safe Far-UVC LEDs. So we need a band-gap of somewhere around 5.5 to 6 electron-volts. And we have options. Here's a list of some semiconductors and band-gaps;. Blue LEDs use Gallium nitride, with a band-gap of 3.4 eV. Figuring out how to grow and then use Gallium nitride for LEDs won the discoverers a Nobel Prize - so finding how to make new LEDs will probably also be hard. Aluminum nitride alone has a band gap of 6.015 eV, with light emitted at 210nm. So Aluminum nitride would be perfect. but LEDs from AlN are mediocre./ Current tech that does pretty well for Far-UVC LEDs uses AlGaN; Aluminium gallium nitride. And when alloyed, AlGaN gives an adjustable band-gap, depending on how much aluminum there is. Unfortunately, aluminum gallium nitride alloys only seem to work well down to about 250nm, a bunch higher than 222nm. This needs to get much better. Some experts said a 5-10x improvement is likely, but it will take years. That's also not really enough for the best case, universal usage of really cheap disinfecting LEDs all around the world. It also might not get much better, and we'll be stuck with very low efficiency Far-UVC LEDs, at which point it's probably better to keep using Excimer lamps. But fundamental research into other semiconductor materials could a...

The traffic light system is in place. Queenstown is now orange. Reporter Tim Brown spoke to Corin Dann.

The traffic light system is in place. Queenstown is now orange. Reporter Tim Brown spoke to Corin Dann.

FM4-Game-Reviews: "Over the Alps", "Gutwhale", "Sky: Children of the Light" Update (inklusive Originaltöne von Jenova Chen) und "Bonfire"

The gang got together for another great episode where we talk about the Planet of the Humans documentary, the latest Tesla Traffic Light Update, and Elon's tweets. Tony and Sara give their impressions of the new TeslaCam viewer, and we get ready for the TSLA Q1 2020 earnings release.

The third installment of DWP investigating the anti-viral properties of fermented fluids when digested in copious amounts. We'll be forwarding the lab results to Anthony Fauci as soon as possible. But, until then, join hosts Brandon Peacock and Ryan Dean to dig into the numbers. Be sure to rate and subscribe wherever you listen! --- Support this podcast: https://anchor.fm/dangerous-world/support

Episode 7 Yo Yo Yo, Welcome back, Today we get into some news, go into depth about the upcoming Halo World Championship(and maybe stuff you didnt know). Give a little update on the pros and whats going on around the tournament scene. We sum it up with a nice BTB Review.(on what we like) Tweet us at ClutchHaloPod Add us on Xbox Live! Heres some links about we talked about Halo World Championship Official Global Halo Tournament announced, and its FREE for you and your team to join. Battle of Shadow and Light Update Didnt know the name of the maps? Check em out here, Game Battle Tournaments (MLG) MLG and GameBattle Halo Tournaments, today ill(BladesDark) be joining a FFA hosted by BTB, to join its 7.50 USD Official ESL for Halo Official ESL for Halo Pro Gaming League PGL's Halo Tournaments Clutch HaloPodcast Spartan Company Wanna play Big Team Battle and Warzone with an actual team? Join the Clutch Halo Podcast official spartan company! Do it! Do it now! Halo Tracker's Big Team Battle USA Leaderboard Find me on the Top 100 of the USA BTB leaderboard ;) -BladesDark

Episode 6 On todays episode, The Halo World Championship, Big Team Battle with the update, and of course a tournament schedule update. Also Tweet us at ClutchHaloPod Add us on Xbox Live! Heres some links about we talked about Halo World Championship Official Global Halo Tournament announced, and its FREE for you and your team to join. Battle of Shadow and Light Update Heres more details on the latest Halo 5 content update. Game Battle Tournaments (MLG) MLG and GameBattle Halo Tournaments Official ESL for Halo Official ESL for Halo Pro Gaming League PGL's Halo Tournaments Clutch HaloPodcast Spartan Company Wanna play Big Team Battle and Warzone with an actual team? Join the Clutch Halo Podcast official spartan company! Do it! Do it now!

State of the Union: MBC Tysons Men's Ministry/First Light update.