Voigtlander 40mm f/2 Septon Aspherical Lens for Sony E Mount

No, the Voigtlander 40mm f/2 Septon Aspherical Lens is a manual focus lens. You will need to adjust focus using the lens's focus ring.

Pancake-style refers to a lens design that is exceptionally short and compact, resembling a pancake. This makes it very portable and less obtrusive.

An aspherical element helps to correct optical aberrations more effectively than traditional spherical elements, leading to sharper images, especially at wider apertures, and reducing distortion.

The 40mm focal length is often considered a 'standard' or 'normal' perspective. It's versatile enough for street photography, environmental portraits, and general everyday shooting, offering a field of view that is natural but slightly wider than a traditional 50mm lens.

Yes, it will mount and function on Sony E-mount APS-C cameras. The effective focal length will be approximately 60mm due to the crop factor, making it a short telephoto lens suitable for portraits.

Yes, the electronic contacts transmit Exif data (like focal length and aperture) and allow the camera's in-body image stabilization (IBIS) to work correctly, even though the lens itself is manually focused.

Use a blower to remove loose dust, then gently wipe with a clean microfiber lens cloth. For stubborn smudges, use a small amount of lens cleaning fluid on the cloth.

Ensure the lens is fully seated on the mount and the camera is powered on. Check that the electronic contacts on both the lens and camera are clean.

Verify that focus peaking is enabled in your camera's menu settings. Ensure the electronic contacts are clean.

Confirm that the electronic contacts are clean and making good contact. Check your camera's Exif recording settings.

Ensure IBIS is enabled in your camera's menu and that the lens is communicating correctly with the body via the electronic contacts.