Lensbaby composer

I think that lensbabys are what they call the tilt lens. As the picture suggests. the barrel of the lens will tilt in any rotational angles you want.

When you look up shift and tilt lens, it has been widely said that it is a way of controlling the depth of field (DoF). Hm . . . . . I am not sure about that.

Although again I know nothing about optics, I can give take an educated guess here.

When a tilt lens is not tilted, it is just like any lens in a sense that the plane of the film, or the sensor (in digital camera) is perpendicular to the direction of light that is coming through the lens. But, when the lens is tilted to one direction, then the field of view in that direction is probably stretched, and front focuses, and the opposite side is shrinking while back focusing, and as a result, it gives the impression that the depth of field is altered.

In terms of focusing, it is done with the barrel of lensing looking straight on. Then the lens is "tilted" to any angle. The sweet spot of focus will shift that way, making other part blurry.

It takes a while to get a hang of it.

I am not quite sure still in what situation it is appropriate. Where I started with it was to see if I can use it to represent "motion." Not quite successful.

Pentax k-7

Lensbaby composer/double optic glass

1/250 @ f/2.8

0 ev

ISO 200

RAW