Yoshizen's Blog

Flower Patch (6) — Canon FD 50mm F1.8 Focus Shift


While a patch of flowers are blooming, I should test the Lenses as many as possible.

C'FD50mmF1.8-F'shift-333-001So, on this post, it was the Canon FD 50 mm F1.8 which was modified to have a motorized

focus.  Funnily enough, the controller of this operation was not that device I’ve designed

for focus-shift but for vibrating a lens.  Despite the battery voltage was low

(nominal 3.7 V battery could give 4.2 V soon after a flesh charge), I found that the

 same device could work for focus-shift as well with some adjustment of the timing.


Unlike the other Lenses of Canon EFS 18~55mm or Tamron &0~300mm, this

50mm lens was worked well on a hand-held shooting, and the pictures’

highlight got pretty smooth halo on them.  = That was what I wanted.






The lens was mounted in the plastic barrel which came from a broken Canon

compact camera G9, and with its barrel, the lens can extend to a close-up range

= almost 1/2 size though, unfortunately a blurring halo is an arch enemy of a

macro photography. —– still, some time, the result looks not too bad.  

(See the Bokeh on the blue flower, photo above, (click to enlarge) = they

don’t follow the “Depth of field” ! —– I don’t know how the 5D processed it )



When the lens was re-constructed in the G9’s barrel, I didn’t put the Iris,

therefore this lens is always fully open F1.8 = in this condition, quality of 

the image was rather good.   (You may feel, it’s too funny of me to say that

— Yes, a man after fuzzy image still see an importance of the sharpness)  🙂



6 Responses

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  1. […] While checking the photo taken by motorized Canon FD 50mm lens, […]

  2. elenacaravela said, on May 26, 2015 at 20:25

    Beautiful images! Love the vibrant color.

    • yoshizen said, on May 26, 2015 at 23:55

      Thank you Elena.
      As the lens itself, this one has the most serious quality among the lens I modified.

  3. […] by driving their AF motor and the FD 50 mm lens was purposely modified. […]

  4. Focus-Shift Flower image | Yoshizen's Blog said, on October 24, 2015 at 20:12

    […] there was such drastic approach even.   […]

  5. […] by the specially modified Canon FD 50mm F1.8 while its […]

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