The Lensbaby Sweet 50 Optic is made for use with the Composer Pro, which can be bought separately, or used interchangeably with the Sweet 50 if you own it already with a different optic. It is a selective focus lens that uses a curved field of focus optic to create a blurred effect around the focus spot.

The 50mm focal length lens has two multi-coated glass elements in one group, and an aperture range of f/2.5 to f/22. The 12-blade internal aperture is easily controlled via a ring on the front of the optic. The sharp sweet spot of focus can be moved within the frame by tilting the Composer Pro's ball-and-socket joint. The size of the sweet spot is also controlled by changing the aperture.

Composer Pro II Lens Body    Sweet 50 Optic    Edge 50 Optic    Optic Swap System Case and Lens Cloth

Related Questions and Answers

Q: 1. Can it be used with a canon 7d?

A: No, this is for exclusive use of the Canon mirrorless M series cameras.

Q: 2. Will the lensbaby magnetic aperture rings work in this lens?

A: The Lensbaby Trio 28 Lens with Filter Kit for Canon RF has a fixed aperture of f/3.5 which cannot be changed or adjusted. The magnetic aperture rings used on other Lensbaby lenses are not compatible for use on the Lensbaby Trio 28 Lens with Filter Kit for Canon RF.

Q: 3. Is this lens fit for Nikon F? If it is not suitable, is it possible to use adapter?

A: No, the Lensbaby Trio 28mm f/3.5 Lens for Nikon Z is for Nikon Z-series cameras. There is likely no adapter that will work for Z to F due to the the flange focal distance of the Z-series lenses being smaller than the F-mount. F to Z works, but not the opposite.

Q: 4. Does it fit the Canon 90D?

A: This lens would only fit the Canon EF-M mirrorless cameras, as the EOS 90D has the EF mount.

Q: 5. country of origin?

A: Country of origin is China.

Q: 6. Will this work on the sony a5000?

A: Yes, works on my Sony a6000 and Sony A9. It's pretty fun! Has a neat effect when it is turned halfway between two lenses.

Q: 7. Will this work on the c300mk2 and cover the full frame? Is an adapter needed?

A: We're afraid not. This is for an EF-M lens, which is a Mirrorless System from Camera. It will not work with the C300 Mark II. There is not an adapter to make it work either.

Q: 8. How is this for video?

A: This lens has the potential to work well for video.

Q: 9. I purchased the Composer Pro II with the sweet 35 optic for the Fujifilm X platform. I want to purchase a Sweet 50 optic. Are the optics camera specific or will the work for any camera using the Composer Pro II system?

A: The Lensbaby Sweet 50 Optic works with an Composer Pro II lens, regardless of the lens mount.

Q: 10. Does this lens have a CPU chip?

A: No.