Nightmare on Queen Street

OK, I am exaggerating a bit, but what happened this morning is every city cyclist's nightmare of the second order -- A car door that suddenly open right in front of your path.  What's worse than this, is the door on the driver's side, because you will fall, and fall on the street, and you could get hit by cars coming from behind.  This morning, a car door opened at the exact moment that I was about to pass it.  I had zero time to react.  My bike hit the passenger door, and the front wheel was so warp that it wouldn't turn.  I had to hold up the front wheel and dragged the bike to the shop.  Luckily, I was riding a very light bike.

The person who opened the door is a gentlemen.  I won't pretend I didn't swear at him inside when I realized I was on the floor.  But, he was very apologetic, and genuinely concern about my fall.  We exchanged information, and he would pay for the the cost of the repair of the bike.  Many people would just try to avoid any and all responsibility.  In any case, the handle bar hit my upper left arm and my right rib.  There is a huge bruise on my arm and my rib hurts like hell when I cough, laugh or sneeze.  Again, my helmet probably saved me again.  If you bike, please wear a good helmet.  If you drive, please do look before opening the door, especially when parked on the street.

Back to gears.  Soulnibbler wanted to see the picture of the focusing helicoids.  You can see it below, along with the 17-31mm mounted on the 75mm f2 lens plus a bonus sample picture :-)

M42-mount helicoids: 12-17mm on left, 17-31mm on right.

17-31mm helicoid on the Taylor-Hobson 75mm f2 with the c-mount adapter. Click to see larger

Sample picture -- NEX-5 & Taylor-Hobson 75mm f2 TV Lens.