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Step 4Mount It
Ok, how do you stick this on your camera? Well, I'm not proud of this, but sticking it is definitely the right idea. We'll literally stick it on an adapter.
An adapter? They make adapters for these? No. We'll simply glue it onto an adapter made for something else. If you have machining skills and equipment, feel free to do something a little less homemade, but metal-to-metal bonding with a lot of surface area works quite well with cyanoacrylate glues (e.g., Krazy Glue).
In general, what you want is an adapter that is thin but still has a flange covering the camera mount. Glassless M42 adapters are reasonable choices for DSLRs using Sony/Minolta, Canon, Nikon, or 4/3 mounts, and usually cost as little as $5. The M42 thread is 42mm across with no obstructions, so rear lenses with diameters less than that will fit without modification.
Before attaching the lens to the adapter, try holding it in place to see how far back the rear element protrudes. If it sticks out in the back more than any of the lenses designed for your camera, there is a serious chance of a collision with your DSLR's mirror. A wide lens barrel can also hit the finder or body grip. These problems can be remedied by simply using a thicker adapter (e.g., a T adapter). To push the lens out even more, you can use an extension tube.
Once you have confirmed the fit, spread a thin layer of cyanoacrylate glue on the rear edge of the lens barrel, and attach it to the adapter. Be quick centering it; this type of glue sets within 30 seconds or so. Let it dry overnight for best strength.
An adapter? They make adapters for these? No. We'll simply glue it onto an adapter made for something else. If you have machining skills and equipment, feel free to do something a little less homemade, but metal-to-metal bonding with a lot of surface area works quite well with cyanoacrylate glues (e.g., Krazy Glue).
In general, what you want is an adapter that is thin but still has a flange covering the camera mount. Glassless M42 adapters are reasonable choices for DSLRs using Sony/Minolta, Canon, Nikon, or 4/3 mounts, and usually cost as little as $5. The M42 thread is 42mm across with no obstructions, so rear lenses with diameters less than that will fit without modification.
Before attaching the lens to the adapter, try holding it in place to see how far back the rear element protrudes. If it sticks out in the back more than any of the lenses designed for your camera, there is a serious chance of a collision with your DSLR's mirror. A wide lens barrel can also hit the finder or body grip. These problems can be remedied by simply using a thicker adapter (e.g., a T adapter). To push the lens out even more, you can use an extension tube.
Once you have confirmed the fit, spread a thin layer of cyanoacrylate glue on the rear edge of the lens barrel, and attach it to the adapter. Be quick centering it; this type of glue sets within 30 seconds or so. Let it dry overnight for best strength.
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