Telephoto without the tax pain
If you're looking for a telephoto lens, the range of lenses available for your camera is only limited by the size of your bank account. So when [Pixels and Prisms] promises a telephoto lens for $13, it's worth a look, isn't it? Where is the catch.
The lens has a 3D printed shell containing the optics, with associated focus and aperture, and has a mount designed for Canon cameras to give a result with a focal length of 163mm and f/2 ,5 . When a Canon lens costs several times as much, obviously there is a trade-off, and that comes from the fact that the lens system is very simple and consists of off-the-shelf surplus lenses without the great effort made by the manufacturer to correct the distortion. The result is nonetheless a very honorable goal even if not the first choice for a paparazzo chasing a wandering politician.
The real interest for us in this open source project comes from the fact that it is a kind of test bed of lenses for experimenters. There is no need to use the combination pictured and the design can be easily adapted to other lenses, so running your own lens system becomes a real possibility. Plus, it accomplished the all-too-easy task of committing a Hackaday writer's time to browsing the Surplus Shed's stock.
We've featured many lens projects over the years, but most often they take an existing camera lens as a starting point.
If you're looking for a telephoto lens, the range of lenses available for your camera is only limited by the size of your bank account. So when [Pixels and Prisms] promises a telephoto lens for $13, it's worth a look, isn't it? Where is the catch.
The lens has a 3D printed shell containing the optics, with associated focus and aperture, and has a mount designed for Canon cameras to give a result with a focal length of 163mm and f/2 ,5 . When a Canon lens costs several times as much, obviously there is a trade-off, and that comes from the fact that the lens system is very simple and consists of off-the-shelf surplus lenses without the great effort made by the manufacturer to correct the distortion. The result is nonetheless a very honorable goal even if not the first choice for a paparazzo chasing a wandering politician.
The real interest for us in this open source project comes from the fact that it is a kind of test bed of lenses for experimenters. There is no need to use the combination pictured and the design can be easily adapted to other lenses, so running your own lens system becomes a real possibility. Plus, it accomplished the all-too-easy task of committing a Hackaday writer's time to browsing the Surplus Shed's stock.
We've featured many lens projects over the years, but most often they take an existing camera lens as a starting point.
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