Focal Length: The lens has a zoom range of 90mm to 300mm, making it suitable for a variety of photography styles, including wildlife, sports, and portrait photography.
Aperture: The maximum aperture varies from f/4.5 at 90mm to f/5.6 at 300mm. This allows for decent light capture, but it may not be as effective in low light compared to faster lenses.
Mount Type: It is an EF lens, compatible with Canon's full-frame and APS-C DSLRs. On an APS-C camera, the effective focal length is approximately 144-480mm due to the crop factor.
Focus Type: The lens features an internal focus system, meaning the length of the lens does not change while focusing, which can be beneficial for balancing and handling.
Optical Design: The lens typically features several glass elements designed to reduce chromatic aberration and improve overall image quality.
Build Quality: While it is a budget-friendly telephoto lens, its construction may be lightweight and less rugged compared to professional-grade lenses.
Performance:
Image Quality: The lens provides good image quality for its class, although you might notice some softness at the extreme ends of the zoom range, especially at wider apertures. Stopping down can improve sharpness.
Autofocus: It typically has a decent autofocus speed, although it may be slower than more expensive lenses. Manual focus override is usually possible.
Stabilization: This model does not include image stabilization, so using a tripod or monopod is recommended, especially at longer focal lengths to avoid camera shake.
Use Cases:
Ideal for wildlife and sports photography due to the extended reach.
Suitable for portraits, as the compression at longer focal lengths can create pleasing backgrounds.
Not the best option for low-light scenarios without a tripod, due to the maximum aperture.
Compatibility:
Works with Canon's full-frame and APS-C DSLR cameras.
Not compatible with Canon's RF mount without an adapter.