OK so I was tempted to buy a lensbaby to play with.
Then I figured it would be more fun to make my own. How hard can it be?
So I planned to use an extension tube as the mount, black-tape a 50mm f1.8 lens onto it (leaving about 1-2 cm of "free play"), and viola! instant lensbaby.
Problem is that you lose infinity focus (that's what an extension tube does... duh!). So I had a macro lensbaby.
How to regain infinity focus? Get rid of the extension tube and bring the lens closer. So that's what I did. I just held the lens at the mount without screwing it in, and tilted it to my heart's content. Lens is set to manual focus, and set at infinity.
Results are encouraging. I've got to work on the camera shake part, and the thought of the mirror opening and closing while exposed to atmospheric dust unnerves me somewhat, but it works! Metering in Av mode is automatic (even though aperture reads at "00"). Focusing is a matter of tilting and moving forwards and backwards. There's lots of flare, but that just gives you the lomo light leak effect...
The discarded extension tube...
Gives a new meaning to "handheld" shot. Notice the spherical abberation (cylindrical distortion) and narrow asymetrical DOF.
Best of all you can use any focal length! This is the Sigma 20mm f1.8. Notice the lens is not even pointing at itself!
Then I figured it would be more fun to make my own. How hard can it be?
So I planned to use an extension tube as the mount, black-tape a 50mm f1.8 lens onto it (leaving about 1-2 cm of "free play"), and viola! instant lensbaby.
Problem is that you lose infinity focus (that's what an extension tube does... duh!). So I had a macro lensbaby.
How to regain infinity focus? Get rid of the extension tube and bring the lens closer. So that's what I did. I just held the lens at the mount without screwing it in, and tilted it to my heart's content. Lens is set to manual focus, and set at infinity.
Results are encouraging. I've got to work on the camera shake part, and the thought of the mirror opening and closing while exposed to atmospheric dust unnerves me somewhat, but it works! Metering in Av mode is automatic (even though aperture reads at "00"). Focusing is a matter of tilting and moving forwards and backwards. There's lots of flare, but that just gives you the lomo light leak effect...
The discarded extension tube...
Gives a new meaning to "handheld" shot. Notice the spherical abberation (cylindrical distortion) and narrow asymetrical DOF.
Best of all you can use any focal length! This is the Sigma 20mm f1.8. Notice the lens is not even pointing at itself!