Everybody talks about the weather, but nobody does anything about it.
From Easter. I thought the lines on the pictures were from the iPod’s photo app, but they are actually part of the pictures, maybe due to the flashlight I used. Maybe I should have used the flash, but it might have been too bright. Lots of green eyes.
Lately I have gotten back into flashlights a little. Not only did I get a really interesting light designed by flashlight connoisseurs that I wrote about recently, but I also received a P60 drop-in that I can put in any one of a bunch of different P60 hosts that I have. The drop-in uses a recently introduced Cree XP-L “High Intensity” LED, which instead of having a round dome of clear plastic over the light emitting die, has a clear flat surface. The dome works well in gathering light and shooting it out generally in one direction, but if you’re going to use a reflector anyway, the dome acts like a magnifying lens, making the die appear bigger to the reflector and therefore harder to focus. The flat window results in a smaller appearing die that the reflector can focus better, resulting in more throw. The light I got recently has the domed XP-L “High Density” LED while the drop-in has the tighter focusing XP-L “High Intensity” LED, and in a somewhat larger reflector that is used in P60 drop-ins. It has less light output overall and isn’t drawing as much current as in the smaller high performance light, but still shines more light on distant objects.
Continue reading “Flashlight Tinkering”
I have been trying to upgrade the flashlight wiki lately by getting some of the latest LED’s and taking pictures of them for the site. The problem is that LED’s are very small. My old camera took great macro pictures, but I lost it. It’s replacement wasn’t quite as good. And even my latest camera still has pretty lousy macro. My iPod has a camera on it, but it isn’t really made for macro. But they make some really cheap lenses you can clip onto a phone or tablet that can help out. Some of them will turn your phone into a microscope or telescope, but they have some very inexpensive sets of lenses ($4 direct from China, $10 or so at Amazon) which include a macro lens, wide angle lens, and a fish-eye lens. I really just wanted the macro lens, but for $4 I will take the other two.
I won’t bore you with LED photos and my newest LED’s haven’t arrived yet anyway, but the higher security currency of the last few years has incorporated microprinting in various parts of the bill that make it harder to counterfeit money. You would have a hard time finding the printing by just looking, but it is there. On a $20 bill there is some writing just to the left of Andrew Jackson, close to the bottom border. Here is a small version of a picture I took with the iPod without using any kind of special lens. I can get within a couple of inches of the bill before the camera can’t focus.
Continue reading “Clip-on Lenses”
I have gotten off of my flashlight kick for the most part, but I still check in every now and then at Budget Light Forum to see what is going on and see if there are any major developments. That forum has really thrived. One of the things they have done is work with flashlight makers in China to come up with customized flashlights more like what flashlight geeks like. That includes things like very low firefly modes that barely put off any light at all. Or neutral and warm tinted lights instead of the bluish cool white tints that are usually used. The results have been kind of mixed, but some reasonably good lights have been produced, sometimes not very different from production models.
Meanwhile other BLF members developed customized software that controls the user interface of the light, not just the number of modes and levels of each mode, but hiding less desirable modes like strobe (but still available in case you need them). Or having the light remember the mode it was in the last time you used it (this works well walking the dogs because medium usually works best but I only turn it on sometimes so it isn’t good if it starts in low every time). A lot of the budget lights seem to have 5 modes which are typically low, medium, high, strobe, and SOS. Using morse code to spell out S-O-S, they don’t even always get that right. I have lights that were O-S-O or S-O-S-O. Honestly, who has ever been saved by a flashlight with an SOS mode? So these guys started reprogramming the computer on their lights to get only the modes they wanted and the levels they wanted. Everyone has slightly different preferences on modes, so this was a way to really customize a light.
Continue reading “Flashlight for Flashlight Geeks”
In October last year I got an email from Vanguard that they were wanting me combine my traditional Vanguard accounts which held Vanguard mutual funds with my Vanguard Brokerage Accounts which I used to buy and sell stocks and exchange traded funds. I had one account of each type for taxable investing and for Roth IRA’s. So I had four accounts and they wanted me to go to two accounts. Here is how they put it:
To make investing easier for you, we’re simplifying our account structure and we need your help . . . This change won’t cost you a thing, and it will help us serve you more efficiently. While we would like to make the switch for you, we need your permission to move your Vanguard mutual funds into brokerage accounts.
I’ve always liked Vanguard’s approach to investing and they have been pretty good to work with, so I made the move right away. Nothing in the email warned me of any possible problems, just that it would be easier, simpler, and more efficient. I made the change immediately.
Continue reading “The Little Short”
