lens tests part II

So here are the next six pictures with the camera shooting from above. The methodology was the same: iso 100, f stops at 3.5 or 2.8 then 8 and 22, and I had a pizza.

For the 35mm lens I accidentally focused on the light meter rather than the page which was how I wanted to show how shallow the depth of field really could be. The demonstration still works though.

In the last few pictures the sun peaked through the shades.  That was what wrecked up the whole thing. I'm so annoyed I don't feel like writing much more about it.

f3.5 1/20

f8 .3sec

f22 1.3sec

There isn't a huge difference between the 35 and the 45. The 45 does have a wider aperture, and frankly I do not see the loss in focus on the edges, but then, like I said before the Canon has a much smaller sensor than the 6x4.5cm film the lens was made for.

f2.8 1/50

f8 1/6

f22 1.6sec

I was sitting around reading 6 Days of the Condor and decided to take some comparison shots.

The pictures were taken in terrible lighting conditions. The natural light was bouncing off a brick wall and through a set of cheap blinds. My light meter registered 20 foot candles. I set the camera on a tripod and the mirror lockup. The body is a Canon 20d set to iso 100, and I had a pizza for lunch.

 This picture is taken with the 35mm lens at f3.5 and the shutter speed at 1/25. I used an old condensed copy of the oxford english dictionary to illustrate the depth of field. Again, crap light.

This one f8 at .5 seconds

 f22 and 2 seconds

Without moving the camera I switched out to the 45mm lens and here's the difference

notice the shallower depth of field of the f2.8

deeper at f8 

 and f22

Still without moving the tripod everything got weird

clearly the 80mm lens does not focus as close in as the other two. Close as I could go, the page is completely out f focus. not exactly making my point on how awesome this lens is. boo.

 f8 brings it in better

 f22 there might be words printed there!

Because of the terrible fail that the 80mm lens had, I moved the tripod and set out the light meter with the ol' dictionary. The pictures came out a bit better I think.

 Look at that! 80mm pulls through with the shot

 but f8 looks better

 you guessed it f22.

more later, this is getting long.