The Lensbaby Sweet 35 is part of the Lensbaby Optic Swap system. It's an optic that fits inside a housing (the Composer Pro II or any of the older Composers). It has a sweet spot of focus in the center.
The Sweet 35 has an aperture range of f/2.5 to f/22.
Lensbaby is currently selling the Sweet 35 optic for $179.95 USD or the Sweet 35 plus the Composer Pro II for $349.95 USD
Questions? Please use the contact form on my "About Me" page. For a 10% discount use the link in my profile and the code WKUHLMAN at checkout !
Many of these images were created using both the Sweet 35 and one of the Lensbaby Omnis.