Lensbaby Sol 45mm f/3.5 for Canon EOS EF-Mount

Lensbaby Sol 45mm f/3.5: deliberate soft-focus with a hard center.

The Sol 45 is Lensbaby's fixed-optic take on selective focus, a 45mm f/3.5 prime built around a 3-element, 2-group design that produces a sharp central sweet spot surrounded by graduated blur. There's no tilt mechanism here, no interchangeable optic disk. The effect is baked in, which means you work with it than dial it in. Broadband multi-coated anti-reflective elements keep flare controlled when you're shooting into light, which is exactly the kind of scenario this lens invites. At 144g and just 39mm long, it disappears on a full-frame Canon EF body.

Manual focus only, with a minimum focus distance of 0.36m and a maximum magnification of 0.17x, close enough for intimate portraits and small still-life setups, not a macro tool. Aperture is fixed at f/3.5, so exposure is controlled through the camera body. That constraint removes a variable and keeps the creative decision where Lensbaby intends it: in your framing and in how you position that sharp center against the subject. This is a lens with a specific look, and if that look suits your work, few options in the EF ecosystem deliver it at this size and weight.

Who It's For

Portrait photographers working in natural light will get the most from the Sol 45's centered sharp zone, which draws attention to a face or eye while the edges dissolve. Fine art and conceptual shooters who want a dreamy, painterly quality without heavy post-processing can build that aesthetic in-camera. Film photographers transitioning to digital who already appreciate manual-only workflows won't feel constrained by the absence of autofocus. Street and documentary shooters looking for a lightweight EF prime that produces images with a recognizable character will find the 144g body easy to carry and hard to ignore.

Key Features

• 45mm f/3.5 prime with fixed soft-focus sweet spot
• 3-element, 2-group design for graduated blur effect
• Manual focus only, 0.36m minimum distance
• Broadband multi-coated anti-reflective elements
• Fixed aperture removes exposure variable
• 144g, 39mm length for compact EF bodies
• 0.17x maximum magnification for intimate subjects
• No autofocus, no weather sealing

FAQ

What makes the Sol 45 different from a standard prime lens?

It's built around a fixed soft-focus effect - a sharp central sweet spot that graduates into blur toward the edges. There's no tilt mechanism or interchangeable optics; the selective-focus character is integral to the design, so you compose around it rather than adjust it.

Can you use autofocus with this lens?

No. It's manual focus only, with a minimum focus distance of 0.36m and 0.17x magnification. The fixed aperture at f/3.5 means you control exposure through the camera body.

How does the fixed f/3.5 aperture affect exposure control?

You meter and adjust shutter speed on the camera to control light. The aperture doesn't change, which simplifies the optical path and keeps the soft-focus effect consistent across all shots.

Is this lens weatherproof?

No weather sealing. It's a compact, lightweight design (144g) intended for controlled shooting environments rather than field work in harsh conditions.

What's the sweet spot size at typical portrait distances?

Lensbaby doesn't publish exact sweet-spot measurements. The 0.17x magnification and 0.36m minimum focus distance suit intimate portraits and small still-life work, not macro photography.

Will this lens work on my full-frame Canon EF camera?

Yes, it's designed for Canon EF mount and 35mm full-frame bodies. At 39mm long and 144g, it's compact enough for handheld work or travel kits.

Does it come with a lens hood?

No hood is supplied. The broadband multi-coated anti-reflective elements manage flare, but adding a hood is your choice if you shoot frequently into light.