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Posts Tagged ‘light’

Accessorize!

October 16th, 2010 No comments

No, not handbags and shoes. I’m talking about accessories for my collection of film cameras.

My film cameras date from the late 1920s to the late 1990s, and between them they have a variety of different methods of controlling the focus and metering. Most of them don’t have any automation at all. This is fun, but can sometimes be a pain, and stand in the way of taking a great photo.

One of the great things about having an interest in photography that lags half a century behind everyone else is that it’s cheap. Provided you aren’t buying antique gear, you can generally get a lot of kit for your money – much more fun to be had for £100 than in the digital world.

So I bought a rangefinder, a light meter, and a power winder.

I took their photos with my DSLR and an LED ring flash. It worked really nicely for the rangefinder (about the size of a cigarette lighter), a bit worse for the light meter (the size of a pack of cigarettes, and flat and shiny) and really badly for the SLR (camera-sized :P and angular). I ended up cutting out the picture of the SLR, rather than over-exposing its background. Next time I’ll make the effort to set up some proper lighting!

Photopia rangefinder

My very crudest cameras have fixed-focus, and the most advanced have split-screen focussing. But there are some that have so-called “guess focussing“. My cameras that do this are a Braun Paxette Electromatic II, a Halina Paulette Electric, and a Voigtländer Bessa. You have no idea what the image will look like, as the viewfinder is totally separate from the main lens. These lenses do have a dial on them to help with setting the focus properly, but how do you know how to set it? That tree could be thirty feet, or forty. Or fifty.

Photopia rangefinder

Enter the rangefinder. This nifty device has two windows that point at your subject, and one viewfinder that the photographer looks through. You see two ghost images of your subject, and as you adjust the knob, the images move around. When the two images are perfectly aligned, you look at the dial and read off the distance. Then you just set the focus ring to this distance. Simple!

Photopia rangefinder

You can pick up 35mm rangefinder cameras cheaply from eBay, but I decided instead to buy a standalone rangefinder. This Photopia one will sit in the hot shoe (or sometimes “accessory shoe”) of any camera.

Realt light meter

Only three of my cameras have any sort of automatic metering. They range from full automatic (Canon EOS 300) to semi-automatic (Canon AE-1 Program) to a needle that waves around (Halina Paulette Electric). All the rest require the photographer to work out what the settings should be.

Of course, the sunny sixteen rule is a huge help here, but sometimes it’s no use. What if there’s a weather condition that’s not sunny, overcast or shade? What if you are taking a photo indoors? A light meter is the answer to your problems.

You can get all sorts of light meters, but I think the prettiest ones are the ones with needles that move around. I found a French Realt meter on eBay for a few quid, and bought it. It’s selenium-based, so not very accurate, but that’s half the fun.

Realt Photo light meter

The background scale behind the needle slides out, and you replace it with the relevant scale for the film speed you are using. Pretty neat. If you have a film for which there exists no scale (and since this dates back to 1949, that’s anything above 100 ASA) then you remove the scale altogether and read off the EV (exposure value) – which you can convert to real settings for your camera by looking them up in a table.

Canon power winder

This is one of things I bought just because I could, and because it was cheap. My Canon AE-1 Program has a lever to wind on the film. This makes a nice sound and feels satisfying, but can slow down the momentum of taking pictures rapidly. Often, I forget to wind on, and I don’t realise until after I’ve set up the next shot and then find the shutter won’t fire.

Canon AE-1 Program with Power Winder

As it was only a fiver, I bought a Canon Winder A. It does what it says on the tin – it winds on the film and can achieve a “few” frames per second. It doesn’t say how many, and I haven’t measured it. More to the point, it makes the camera look big and professional!

Review: RSP Asteri 2 LED bike lights

October 8th, 2009 13 comments

Today my new bike lights arrived – a pair of RSP Asteri 2 LED lights.

The manufacturer’s website has hardly any details and reviews of these lights are scarce, so it is practically my duty to write this review, for the benefit of anyone else who is considering buying them. Also note that the pictures on the manufacturer’s website are wrong. Both the battery pack and the lights are different!

What you get

In the box, there are two lights, each with one 1W LED. There is a battery pack which actually contains 4xAA NiMH rechargable batteries. There is a Y-adapter to attach both lights to the shared battery pack, and there are two velcro straps to attach the battery pack.

The box

The box

Build quality

Build quality is not actually as good as I might have hoped.

The lights themselves seem sturdy. The silver ring around the front is metal and feels solid. But the attaching mechanism is made entirely from rubber. I don’t know how supple this will be after a couple of years. Other rubber cycling products I’ve seen have perished after a few years and no longer stretch, eventually causing them to crack.

One of the lights

One of the lights

The battery pack is flimsy in my opinion. It has a belt clip which can be used to attach it in a number of ways, but it looks brittle and would expect it to snap off before too long. The lid of the battery pack is held on by a single screw, which could be damaged by over-tightening. Be careful! There is also no rubber seal between the lid and the body of the battery pack, so I don’t know how it will fare in rain. However, the box does claim that the set is waterproof, so we will see.

The battery pack

The battery pack

The battery pack

The battery pack

The cables are thick and appear suitably strong. Their connectors are all standard push connectors, but they have a “click” to keep them in place. The strength of that “click” seems to vary across the connectors and some are not as strong as I would like. I don’t plan to unplug mine very often so I will probably tape them up with insulating tape.

Mounting

The mounting facilities are not as good as other sets of lights I have used. The headlight units attach to the handlebars with a rubber strap with holes, and a plastic peg that pushes into the hole. There is no way to set the tightness to a setting between holes (e.g. the way that other lights have a screw).

Mounting of the battery pack doesn’t seem great either. The pack itself simply has a belt clip. There is a velcro strap in the box, presumably to attach the unit to part of the frame. However you’d have to figure it out yourself, and loop the velcro under the belt clip. Luckily I have some other rubberised velcro strips from other cycling products I’ve bought over the years.

Bear in mind that you will probably have to remove the battery pack in order to charge it (unless you leave your bike within reach of a mains socket overnight).

The cables are not curly, so if they’re too long then you’ll have to put up with them being saggy, or tie them up. You’ll need to be careful running the cable between the handlebars and the frame, in case it gets pulled taut when you steer. Nothing is provided in the box to attach the cables to your frame. I plan to use regular cable ties.

The lights have short (5cm) cables and the Y-splitter is perhaps 15cm long. The battery has the longest piece of cable and this is rather annoying. To remove the battery, you also have to remove the cable from the frame, so there’s not much choice to fix it permanently.

The system boasts a low battery warning so you don’t over-discharge the batteries and break them. Unfortunately you are unlikely to be able to see it as it’s on the battery pack, which will probably be on your luggage rack, on your frame or in your back pocket! Never mind.

Both the lights and the batteries are very light.

Performance

Despite my grumbles so far, these lights are really bright. Much brighter than any other so-called “1W” lights I’ve come across. The beam is fairly narrow, such that no light is wasted but it’s by no means a narrow beam. It can be seen from all angles.

Lights running

Lights running

Each light has its own button, so you can use one light or both. The button cycles through 3 modes – dim, bright and flashing. The separate buttons means you can have one flashing and one on constant. Nice and versatile. Other twin lights I’ve seen have a central button on the handlebars. I guess each system has its pros and cons.

The battery pack contains 4 x AA batteries as opposed to simply being a proprietary NiMH battery pack. The intention is to keep the pack sealed and simply plug the charger into the battery pack to charge it, but of course you can remove the batteries to charge them in a conventional battery charger if you wish. See Modding for other ideas.

Modding

The system is quite simply put together, so it should also be nice and simple to take apart! :D

As I mentioned above, the battery pack takes 4 x AA batteries, and a set of 1600 mAh batteries are provided. This immediately gives you options – you can replace them with more expensive rechargeables (such as the 2500 mAh ones I use in my camera) or simply use regular alkaline batteries.

Using the included batteries, the manufacturer quotes 1-2 hours runtime at full power, and up to 6 hours flashing. Swapping these for 2500 mAh batteries immediately adds 50% to those figures for not much outlay.

Using AA batteries also has a huge bonus in that you can always keep some spare alkaline batteries in your rucksack so you’ll never be caught out if your rechargeable batteries go flat on you. This is often a problem with rechargeable light sets that use proprietary battery systems.

The battery pack has a standard power connector that you can buy from any good electronics shop. Maybe even a bad electronics shop, too. You can create your own battery pack so long as you use the same connector, and you won’t have to alter (and risk breaking) your light set.

The power connector

The power connector

I plan to build a bottle battery with D batteries, for long runtime. Naturally I will post about it here when I get round to it.

Verdict

As far as lights go, this is a good, versatile, powerful set. Shame about the build quality. If you buy these, expect to have to do some DIY when you install them. You will probably need cable ties and insulation tape – the kit isn’t even in the same league as a CatEye set. However, it is a fraction of the price!

Some simple oversights exist in the system, such as the battery back not being detachable from its cable. It would cost pennies to rectify the design, but you’ll just have to make those changes yourself, or work around them.

Overall, I would recommend this light set to a fellow cyclist, on the condition that they weren’t expecting miracles, and that they were prepared to do a little work to install it.

Pros Cons
  • Bright
  • Good beam pattern
  • Individually controlled lights
  • Has flashing mode – unusual for rechargeable light sets
  • Rechargeable battery pack
  • Able to use AA alkaline batteries so you’re not left stranded
  • Easy to make your own battery pack
  • Price – I paid £80 for this kit
  • Poor build quality
  • Not enough accessories to complete installation. You’ll need to provide some
  • You’re on your own mounting the battery pack
  • Light mounting seems pretty sloppy compared to other lights – even cheap ones
  • No curly cables
  • Fairly poor battery life at full power with supplied batteries
  • Some practical design mistakes. You either have to repeatedly unscrew the battery cover, or repeatedly detach the entire cable from your bike.

My installation

Here are some photos of how I’ve got my lights set up. The other headlights are a pair of CatEye ABS-35 halogen headlights. They’ve long since been discontinued but are still going strong. There’s a 20W spot and 15W flood, with individual handlebar-mounted switches. With both lights burning, you get around 45 minutes runtime…

The new RSPs are mounted below the handlebars, and the CatEyes are mounted above.

Front view

Front view

Side view

Side view

You can barely see the RSPs hiding below the handlebar in this one. Each light has a switch on its top (so underneath, in my case) which can be a bit fiddly to press while riding. The CatEye lights have the yellow/grey switch to control them.

Cyclist's eye view

Cyclist's eye view

I’ve fixed the battery pack to my luggage rack with a rubberised velcro strap.

The battery pack

The battery pack

Another shot showing the CatEye batteries under the bottle cage, and the loose cable for the RSP lights along the top tube. It’s held in place only with velcro straps as I need to remove the cable every time I want to remove the battery for charging.

The cabling

The cabling

After I’ve used the lights for real, I will post more pictures of them working outdoors at night.

Categories: Cycling, Reviews Tags: , , , , , ,

Meltdown

July 8th, 2009 1 comment

The title “On not buying cheap crap” was a close runner up for this article.

A few months ago I bought a set of flashes from eBay. The price was very low, and obviously I wasn’t expecting miracles. For around £130 I managed to get two 150W flashguns, two tripods, all the power and sync cables, wireless triggers, three photographic umbrellas, a softbox and a carry case. Delivered. Not bad!

The build quality of the kit isn’t brilliant, and would quickly break if I lugged it around everywhere like a pro. But it seemed fine for occasional home use and I’ve used the various pieces several times with good photographic results.

The other day I used one of the flashes with a snoot to take a series of smoke photos. I kept the 50W modelling lamp on so I could see what I was doing. After I finished taking the photos, I turned the flash off and went to bed. In the morning, the snoot (held onto the front of the flash by one bolt) had fallen off and was lying on the floor. I didn’t think anything of it until I inspected the flash.

It seems using the snoot had significantly reduced ventilation to the modelling lamp, causing it to get hot enough to soften the plastic. The weight of the snoot (hardly anything!) was apparently enough to cause the front of the flash to sag, where it has now set.

Two flashes and a snoot

Two flashes and a snoot

The snoot now doesn’t bolt onto the flash properly, so I will have to use it on the other flash. With great caution.

Lessons learnt

  • Don’t expect too much from cheap rubbish. By “too much”, I mean don’t expect it to stay as a solid during use.
  • Use the modelling light as little as possible when using a snoot.
  • If I ever build a hot light, I will not use thermo-softening materials.
Categories: Photography Tags: , ,

LED sidelights

June 25th, 2009 No comments

Today I replaced the sidelights in my car with white LEDs. I was annoyed by the very yellow tinge of the traditional 501 (aka W5W) bulbs.

The new LEDs produce a very narrow beam and don’t illuminate the reflector as the bulbs used to. I like it.

I promise to upload more photos in a more glamorous location than a car park, and when I’ve had a chance to wash the car!

LED sidelights

LED sidelights

Categories: Cars Tags: , ,