Attach the Tamron B008 lens to your Sony camera and take shots of the expansive ocean and also close- up shots of your dog. Focal length on this Tamron lens for Sony can be changed between 18 mm and 270 mm, depending on whether it is portrait or landscape photographs you are taking. Sharpness of the image can also be altered, as aperture on this Tamron 18 mm - 270 mm lens can be adjusted between f/3.5 and f/6.3. To keep the reflection of light minimal at the surface of the lens and also to protect it from dust, this Tamron lens for Sony has 62 mm filter. As the minimum focus distance of this Tamron 18 mm - 270 mm lens is 0.49 meters, you can take pictures of the white mice nibbling at the cheese without making it conscious. The Tamron B008 lens is a quick attachment.