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Lensbaby
Lensbaby Composer Pro II Sweet 50 Optic Nikon F 50mm f/2.5
A 50mm f/2.5 manual-focus lens with a 12-blade aperture that tilts up to 15 degrees to place a curved sweet spot of focus anywhere in the frame
- 50 mm focal length for natural perspective
- Adjustable f/2.5 to f/22 aperture controls depth and sweet-spot size
- 12-blade diaphragm creates smooth circular bokeh
- Tilt up to 15° moves the focus spot anywhere in the frame
- Manual focus down to 15 inches for close-up control
Selective focus with 50mm optic
The Lensbaby Composer Pro II Sweet 50 is a 50mm f/2.5 lens for Nikon F mount that creates a movable sweet spot of focus surrounded by gradual blur. Photographers tilt the lens up to 15 degrees to position that spot anywhere in the frame. A 12-blade aperture ring on the optic adjusts from f/2.5 to f/22 for manual depth-of-field control.
Consistent character across apertures
At wider apertures the sweet spot is small and the surrounding blur is pronounced, while stopping down enlarges the focused area and softens the transition. The 12-blade diaphragm maintains a round opening throughout the range, so out-of-focus highlights render smoothly without polygonal edges. Manual focus from 15 inches to infinity lets the user refine placement for each shot.
Fixed focal length and manual operation
The 50mm field of view is fixed, so composition relies on physical positioning rather than zoom. Focus and tilt are entirely mechanical with no electronic coupling to the camera body. The optic swaps within the Lensbaby Optic Swap System, but the lens itself offers no autofocus, stabilisation or aperture automation.
Highlights
- 50 mm focal length for natural perspective
- Adjustable f/2.5 to f/22 aperture controls depth and sweet-spot size
- 12-blade diaphragm creates smooth circular bokeh
- Tilt up to 15° moves the focus spot anywhere in the frame
- Manual focus down to 15 inches for close-up control
Specifications
No published specifications for this item yet.
Questions about this item
Does the 12-blade aperture ring create any mechanical noise when adjusted during video recording?
The aperture is controlled by a manual ring on the front of the optic with 12 blades; it operates silently since there is no electronic motor.
What camera mount is required to attach this 50mm f/2.5 lens?
This model is built for the Nikon F mount and will not fit other bayonets without a separate adapter.
Will the tilt function work on a Nikon body that lacks an electronic aperture coupler?
Yes, the lens tilts up to 15 degrees mechanically and uses manual focus, so it functions fully on any Nikon F body regardless of electronic contacts.
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