Suitable for wildlife, landscape p ography and astrop ography etc Manual focus, fixed aperture F7.5 Multi-layer brightening coating helps to reduce ghosting and glare Provides the user with extremely images with minimal color aberration Compact and design makes it easy to carry and use length: 500mm Aperture: f/7.5 Lens construction: in 3 groups Multi-coating: Yes Angle of view: 5° Minimum focusing distance: 4m Filter size: 77mm Note: 1. Due to the long length, it is recommended to focus in live-view mode to achieve accurate focusing. 2. As with all long telep o lenses, a combination of a sturdy camera support, a reliable tripod, good technique, fast shutter speed, use of remote control and mirror lock to avoid camera shake is recommended for results. (The product printed words depending on the batch, but this does not affect use) Color: As Shown Material: ABS Package Contents: 1 x Lens (without converter) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.