#51
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IQ-X vs Edelux II
On Monday, April 8, 2019 at 5:39:29 PM UTC-7, Andre Jute wrote:
By golly, I AM the boss psychologist. On April 7th I wrote: "** Now watch the wretched Krygowski screech "Danger! Danger!" merely for wanting to see obstructions at night. There is no, repeat no, reason a bicyclist shouldn't wish for lamps at least the equivalent of those on a European (not American) motorcar. To argue contrarily, as Kreepy Krygo does, is to concede in advance that cyclist have less claim to the road -- and to safety -- than motorists. *** And here the wretched Krygowski IS screeching "Danger! Danger!" This the same ******, the same Krygowski, who for each lamp Busch und Muller ever made claimed it was adequate for cyclists, and abused everyone who had their brains in gear and reported what their eyes could see, that the lamps were lethals. And here, below, and in other posts in this thread, the dumb cluck Krygowski does indeed concede that a cyclist doesn't have an innate right to cast the same light on the road as a motorist. Just as i predicted. Andre Jute Thanks Franki-boy: you put a few bucks in my pocket from bets with my poker school, fellow professionals, that I can predict what you will say. On Monday, April 8, 2019 at 3:48:24 PM UTC+1, Frank Krygowski wrote: On 4/8/2019 4:01 AM, sms wrote: On 4/7/2019 5:07 PM, Andre Jute wrote: snip In my opinion, the Cyo is the first barely* adequate bicycle lamp by any manufacturer with universal distribution. Leaving aside the matter of the top cutoff, the Cyo is still inferior the MR11 and MR16 lamps I built to Scharfie's plans (a public service to cyclists) lo! these many years ago. snip Remember that the Cyo was designed to be StVZO legal, it wasn't designed to be the most effective in terms of illumination and safety. The "Danger! Danger!" Safety Inflation contingent defines "most effective in terms of illumination and safety" to be something like this: https://www.youtube.com/watch?v=w7RU...ature=youtu.be Their standard is simple: As long as something brighter exists, nothing else is safe enough. "sms" AKA Scharf seems to fantasize that the German government enacted design requirements in an effort to kill cyclists. But instead, the StVZO requirements are intended to give cyclists adequate visibility and road illumination without blinding others. Of course, those with either "Danger! Danger!" paranoia or MFFY attitudes don't care about that. Also, notice the very obvious "hot spot" directly in front of that cyclist at about 0.33 in that video. That's what you get with headlights with kindergarten optics, which means pretty much anything not qualifying for StVZO. The hot spot tends to blind the cyclist using the light. Your eyes adjust for the intense brightness of that spot, thus are stopped down too far to see into the relatively darker areas beyond.. Properly designed road vehicle optics are very similar for bicycles, cars, trucks or motorcycles. The portion of the beam pointing downward should be dimmer since it illuminates the road very close to the operator and has less distance to travel. Portions of the beam pointed further forward should gradually increase in brightness, and the portion pointing furthest down the road should be brightest. Above that should be a cutoff, sending enough light to be seen by, but not so much as to glare in others' eyes. The result of this is very uniform road illumination, easiest on the eyes and best for showing road obstacles. And ANY headlight beam that adequately illuminates the road is EASILY visible to other road users. "I gotta blind people to be seen" is just stupid. The Cyo lacks a modulated mode, presumably because in many countries such a mode would not be legal. The main root cause for Cyo lacking a modulated mode is that only one nutty California politician thinks it needs one. -- - Frank Krygowski I tried using those little very bright mini-flashlights with a handlebar mount. Well that was certainly a bad idea. I finally got a headlight that was much dimmer but had a wide enough focus that I could see the ground for several bike lengths. This allowed me to actually see where I was going on the dark streets. |
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#52
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IQ-X vs Edelux II
On Wednesday, April 10, 2019 at 12:40:03 PM UTC-4, Frank Krygowski wrote:
On 4/10/2019 3:15 AM, John B. wrote: On Tue, 9 Apr 2019 21:16:18 -0700, sms wrote: On 4/8/2019 8:36 PM, John B. wrote: snip Easier than that one can buy a duel beam bicycle lights ranging from a bit over $100 to almost any price you want to pay - the Supernova M99 Pure - Dual Beam Bike Light goes for 265 BP - about US$ 346 and Amazon has the Nitecore BR35 1800 Lumen Dual Beam OLED Display Rechargeable Bicycle Headlight with Remote Switch, Mount - Includes Lumen Tactical Adapter for a mere $122.95. Dual, not duel. One key thing to look for in bicycle lights is the optics. Many bicycle lights lack proper optics because they're designed to meet StVZO standards rather than being designed to properly illuminate the road sufficiently far ahead, as well as things like street signs. You definitely want some side and upward spill but not so much that it blinds oncoming cyclists. It looks like the Nitecore did a very good job of using proper optics for each beam. And what is "sufficiently far ahead"? What I see is bicycles traveling at about 20 - 25 kph, on the average. That is 12 - 15 MPH with occasional chap whizzing by at 30 kph - 18 MPH. I am aware that many folks can ride faster than that but can they average a much higher for, say a 3 - 4 hour ride. But lets call it 20 mph which is 29 FPS... ( That just happens to be the length of my living room ) so how many living rooms do you need to see ahead of you? Two or three? More, lets say 5 seconds, that is 146 feet, or 48 yards which is 4.9 living rooms. Good Lord! People can run that distance in about 5 seconds and you on a 11 speed bicycle? As I recently mentioned: During the evening ride I took about two or three days ago, I noticed again that my B&M Eyc (StVZO) headlight powered by my bottle dynamo was brightly lighting up stop signs, etc. almost a quarter mile from me. (Google maps shows it as a bit over 0.2 miles.) That means my light rays traveled 0.4 miles from my headlight to the sign and back to my eye and were _very_ noticeable. For a motorist 0.2 miles away, those light rays would be far more noticeable. I've confirmed this with the help of friends and family. Please note that the Eyc headlight is tiny, much smaller than a Cyo. The Cyo does an even better job. Scharf has promulgated this myth that StVZO lights are invisible, or inadequate, or whatever. Maybe there are some bad ones, but certainly not the ones I own. As to John's question about seeing [the road] ahead of you: While it's probably more subjective, this light has been fine for me at 25 mph downhill. That's as fast as I ever ride at night. The concentration of light into a bright band just below the cutoff sends that light way down the road. Just as with your car's headlights. It's not rocket science. Motor vehicle manufacturers figured all this out many decades ago. The problem with bicycling is the plethora of tiny semi-amateur manufacturers, the lack of logical lighting standards, and the huge "Danger! Danger!" mentality of most bicyclists. -- - Frank Krygowski I remember old dynamo and/or battery lights that had a switch on top to go from high beam to low beam. Apparently such lights are now available with LEDs instead of incandescent bulbs. I don't know how bright they are. here's a link to one example. https://www.ebay.com/itm/New-Silver-...-/321150771101 Cheers |
#54
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IQ-X vs Edelux II
On Tue, 9 Apr 2019 22:00:14 -0700 (PDT), Sir Ridesalot
When I'm riding at night out in the country (which I do a lot) I like a light that lights the entire 2 lane road so that I can see critters such as skunks BEFORE I startle them. I also like to be able to see a fair distance down the road in case there's a critter on the road. I use 2 lights. One is a CygoLite Rover II which does an excellent job of lighting a 2 lane road plus the shoulders. The other light is a Magic Shine knockoff that illuminates the road quite a distance ahead of the bicycle. The MS knockoff is like a high beam light and has a beam pattern that SMS used to laud. He used to guerrilla market flashlights as the ideal bicycle lights. Remember all those posts he made about them being the cats meow? For the record, I never Guerilla marketed flashlights. I would caution you about believing anything Frank K. writes. About thirty years ago I was selling complete lighting systems and giving away the plans for free. It was a non-profit, though I didn't plan it that way. The round beam of Magicshine and other round beam flashlights has some definite advantages. One key thing is to properly aim the beam. The hot spot, should be on the road, not in the eyes of oncoming traffic. The wide beam pattern, the long distance they illuminate, and the top and side spill are good things, not bad things! An StVZO compliant dynamo light can't do this. And not everyone wants to spend hundreds of dollars on a dynamo wheel and a high-end dynamo light. In fact very few people want to spend that much. |
#55
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IQ-X vs Edelux II
On Wed, 10 Apr 2019 12:39:58 -0400, Frank Krygowski
wrote: On 4/10/2019 3:15 AM, John B. wrote: On Tue, 9 Apr 2019 21:16:18 -0700, sms wrote: On 4/8/2019 8:36 PM, John B. wrote: snip Easier than that one can buy a duel beam bicycle lights ranging from a bit over $100 to almost any price you want to pay - the Supernova M99 Pure - Dual Beam Bike Light goes for 265 BP - about US$ 346 and Amazon has the Nitecore BR35 1800 Lumen Dual Beam OLED Display Rechargeable Bicycle Headlight with Remote Switch, Mount - Includes Lumen Tactical Adapter for a mere $122.95. Dual, not duel. One key thing to look for in bicycle lights is the optics. Many bicycle lights lack proper optics because they're designed to meet StVZO standards rather than being designed to properly illuminate the road sufficiently far ahead, as well as things like street signs. You definitely want some side and upward spill but not so much that it blinds oncoming cyclists. It looks like the Nitecore did a very good job of using proper optics for each beam. And what is "sufficiently far ahead"? What I see is bicycles traveling at about 20 - 25 kph, on the average. That is 12 - 15 MPH with occasional chap whizzing by at 30 kph - 18 MPH. I am aware that many folks can ride faster than that but can they average a much higher for, say a 3 - 4 hour ride. But lets call it 20 mph which is 29 FPS... ( That just happens to be the length of my living room ) so how many living rooms do you need to see ahead of you? Two or three? More, lets say 5 seconds, that is 146 feet, or 48 yards which is 4.9 living rooms. Good Lord! People can run that distance in about 5 seconds and you on a 11 speed bicycle? As I recently mentioned: During the evening ride I took about two or three days ago, I noticed again that my B&M Eyc (StVZO) headlight powered by my bottle dynamo was brightly lighting up stop signs, etc. almost a quarter mile from me. (Google maps shows it as a bit over 0.2 miles.) That means my light rays traveled 0.4 miles from my headlight to the sign and back to my eye and were _very_ noticeable. For a motorist 0.2 miles away, those light rays would be far more noticeable. I've confirmed this with the help of friends and family. Please note that the Eyc headlight is tiny, much smaller than a Cyo. The Cyo does an even better job. Scharf has promulgated this myth that StVZO lights are invisible, or inadequate, or whatever. Maybe there are some bad ones, but certainly not the ones I own. As to John's question about seeing [the road] ahead of you: While it's probably more subjective, this light has been fine for me at 25 mph downhill. That's as fast as I ever ride at night. The concentration of light into a bright band just below the cutoff sends that light way down the road. Just as with your car's headlights. Well, a quarter of a mile is 1320 ft. and 20 miles per hour is 29 ft5/sec so your quarter mile lights illuminate a length of road that it will take you 3/4 of a minute to travel..... is this necessary to safely ride at night? Or might it be called over kill? -- cheers, John B. |
#56
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IQ-X vs Edelux II
On Wednesday, April 10, 2019 at 7:21:48 PM UTC-4, John B. wrote:
Snipped Well, a quarter of a mile is 1320 ft. and 20 miles per hour is 29 ft5/sec so your quarter mile lights illuminate a length of road that it will take you 3/4 of a minute to travel..... is this necessary to safely ride at night? Or might it be called over kill? -- cheers, John B. That depends on the bicyclsit's needs/wants. I like a light that has a lot of range and a wide beam so that I can see obstructions and/or critters on the road before I startle them. I've had many instances where I've seen skunks or racoons about to cross the road ahead of me. Hitting a 30 to 40 pound racoon at speed is not something i want to do nor do I want to startle a skunk. therefore my needs for bicycle lights are most likely different than someone who is riding mainly on brightly lit city streets. So far my needs/wants have been met by having one light with a broad beam (CygoLite Rover II has what they call cross-over technology) plus a Magic-Shine knockoff that I use as a high beam light. Cheers |
#57
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IQ-X vs Edelux II
Sir Ridesalot wrote:
I remember old dynamo and/or battery lights that had a switch on top to go from high beam to low beam. Nope, that's a common misconception. In all instances of these antique "dual" beam bicycle lamps you describe, I found there was only one reflector optic for one bulb. The secondary beam was really a "walking beam" directly illuminated by the upper bulb plus some interior reflection. That might not have kept Johnny B. Slowbike and others from using it as a low beam, and still is nice to have, but it was neither designed as a low beam, nor did it display the layered characteristic of a shaped low beam. Please do feel free to show me the rare exception, but this ... Apparently such lights are now available with LEDs instead of incandescent bulbs. I don't know how bright they are. here's a link to one example. https://www.ebay.com/itm/New-Silver-...-/321150771101 .... I'm sorry, that's just an awful toy. You are better off buying a slightly rusty original (or even a nice drinking glass if you enjoy the glittery reflections,) than that junk. |
#58
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IQ-X vs Edelux II
On 4/10/2019 7:21 PM, John B. wrote:
On Wed, 10 Apr 2019 12:39:58 -0400, Frank Krygowski wrote: On 4/10/2019 3:15 AM, John B. wrote: On Tue, 9 Apr 2019 21:16:18 -0700, sms wrote: On 4/8/2019 8:36 PM, John B. wrote: snip Easier than that one can buy a duel beam bicycle lights ranging from a bit over $100 to almost any price you want to pay - the Supernova M99 Pure - Dual Beam Bike Light goes for 265 BP - about US$ 346 and Amazon has the Nitecore BR35 1800 Lumen Dual Beam OLED Display Rechargeable Bicycle Headlight with Remote Switch, Mount - Includes Lumen Tactical Adapter for a mere $122.95. Dual, not duel. One key thing to look for in bicycle lights is the optics. Many bicycle lights lack proper optics because they're designed to meet StVZO standards rather than being designed to properly illuminate the road sufficiently far ahead, as well as things like street signs. You definitely want some side and upward spill but not so much that it blinds oncoming cyclists. It looks like the Nitecore did a very good job of using proper optics for each beam. And what is "sufficiently far ahead"? What I see is bicycles traveling at about 20 - 25 kph, on the average. That is 12 - 15 MPH with occasional chap whizzing by at 30 kph - 18 MPH. I am aware that many folks can ride faster than that but can they average a much higher for, say a 3 - 4 hour ride. But lets call it 20 mph which is 29 FPS... ( That just happens to be the length of my living room ) so how many living rooms do you need to see ahead of you? Two or three? More, lets say 5 seconds, that is 146 feet, or 48 yards which is 4.9 living rooms. Good Lord! People can run that distance in about 5 seconds and you on a 11 speed bicycle? As I recently mentioned: During the evening ride I took about two or three days ago, I noticed again that my B&M Eyc (StVZO) headlight powered by my bottle dynamo was brightly lighting up stop signs, etc. almost a quarter mile from me. (Google maps shows it as a bit over 0.2 miles.) That means my light rays traveled 0.4 miles from my headlight to the sign and back to my eye and were _very_ noticeable. For a motorist 0.2 miles away, those light rays would be far more noticeable. I've confirmed this with the help of friends and family. Please note that the Eyc headlight is tiny, much smaller than a Cyo. The Cyo does an even better job. Scharf has promulgated this myth that StVZO lights are invisible, or inadequate, or whatever. Maybe there are some bad ones, but certainly not the ones I own. As to John's question about seeing [the road] ahead of you: While it's probably more subjective, this light has been fine for me at 25 mph downhill. That's as fast as I ever ride at night. The concentration of light into a bright band just below the cutoff sends that light way down the road. Just as with your car's headlights. Well, a quarter of a mile is 1320 ft. and 20 miles per hour is 29 ft5/sec so your quarter mile lights illuminate a length of road that it will take you 3/4 of a minute to travel..... is this necessary to safely ride at night? Or might it be called over kill? I've called it luxurious. It's the nutty California politician that's been saying it's dangerously inadequate. -- - Frank Krygowski |
#59
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IQ-X vs Edelux II
On 4/10/2019 7:29 PM, Sir Ridesalot wrote:
On Wednesday, April 10, 2019 at 7:21:48 PM UTC-4, John B. wrote: Snipped Well, a quarter of a mile is 1320 ft. and 20 miles per hour is 29 ft5/sec so your quarter mile lights illuminate a length of road that it will take you 3/4 of a minute to travel..... is this necessary to safely ride at night? Or might it be called over kill? -- cheers, John B. That depends on the bicyclsit's needs/wants. I like a light that has a lot of range and a wide beam so that I can see obstructions and/or critters on the road before I startle them. I've had many instances where I've seen skunks or racoons about to cross the road ahead of me. Hitting a 30 to 40 pound racoon at speed is not something i want to do nor do I want to startle a skunk. therefore my needs for bicycle lights are most likely different than someone who is riding mainly on brightly lit city streets. So far my needs/wants have been met by having one light with a broad beam (CygoLite Rover II has what they call cross-over technology) plus a Magic-Shine knockoff that I use as a high beam light. FWIW, I think beam width is where the ever-increasing lumen count should be spent. Wasting half of the lumens (for road biking) by shining them up into the skies, or into the eyes of other road users, is crazy. A super-wide beam would show the skunks, raccoons, loose dogs, turtles, frogs and whatever else might be interesting at the roadside. If the extra-wide parts of the beam had a higher cutoff than the main part, they would shine further into a sharp turn, which would sometimes be beneficial. And if a motorist were racing up to a stop sign to your right, it would do a bit more to gain his attention. -- - Frank Krygowski |
#60
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IQ-X vs Edelux II
On Wed, 10 Apr 2019 21:23:22 -0400, Frank Krygowski
wrote: On 4/10/2019 7:29 PM, Sir Ridesalot wrote: On Wednesday, April 10, 2019 at 7:21:48 PM UTC-4, John B. wrote: Snipped Well, a quarter of a mile is 1320 ft. and 20 miles per hour is 29 ft5/sec so your quarter mile lights illuminate a length of road that it will take you 3/4 of a minute to travel..... is this necessary to safely ride at night? Or might it be called over kill? -- cheers, John B. That depends on the bicyclsit's needs/wants. I like a light that has a lot of range and a wide beam so that I can see obstructions and/or critters on the road before I startle them. I've had many instances where I've seen skunks or racoons about to cross the road ahead of me. Hitting a 30 to 40 pound racoon at speed is not something i want to do nor do I want to startle a skunk. therefore my needs for bicycle lights are most likely different than someone who is riding mainly on brightly lit city streets. So far my needs/wants have been met by having one light with a broad beam (CygoLite Rover II has what they call cross-over technology) plus a Magic-Shine knockoff that I use as a high beam light. FWIW, I think beam width is where the ever-increasing lumen count should be spent. Wasting half of the lumens (for road biking) by shining them up into the skies, or into the eyes of other road users, is crazy. While I do not doubt you at all but if one assumes a round spot light like a LED 3.7 VDC flashlight (which some used to tout here if I remember) if you illuminate the road than the light doesn't shine in a cyclist's (unless of course the rider is prone, of course) eyes so it would appear to me that someone who's light is flashing into the eyes of other riders must have deliberately aimed the light up. At least my handle bar mounted flashlight which is only very slightly depressed from horizontal doesn't shine in other's eyes, whether autos or cycles. A super-wide beam would show the skunks, raccoons, loose dogs, turtles, frogs and whatever else might be interesting at the roadside. If the extra-wide parts of the beam had a higher cutoff than the main part, they would shine further into a sharp turn, which would sometimes be beneficial. And if a motorist were racing up to a stop sign to your right, it would do a bit more to gain his attention. Well, while I suppose that others are riding out with the skunks and the badgers it has been nearly 70 years since I did that so I really can no longer remember what that was like :-) But from my very faint memory I don't remember too many skunks trying to cross the road as from what little I know about skunks they aren't really big travelers. Now deer, moose, etc., yes as they do get about a bit. If a motorist were racing up to a stop sign to your right I would think that several side mounted flashing red lights and possible a bright colored flag flying from a mast mounted on the rear of the bike would be better then what is, in terms of road vehicle lights, a pretty anemic light. But what about someone rushing up from the left side? -- cheers, John B. |
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