Rare Excellent Condition Sigma AF Apo 135-400Mm F4.5-5.6 Pentax (Pre-owned)

Really great rare Sigma AF Apo 135-400mm f/4.5-5.6 for Pentax cameras! The lens is in amazing shape with no marks on the barrel, and the glass is in immaculate shape with no scratches, marks, or haze at all on either the front or rear elements! All the rings spin nice and freely without sticking. 

Here are some benefits to shooting with this particular lens: 

1. Versatility: A 135-400mm focal range provides a versatile zoom range suitable for various photography genres, including wildlife, sports, and even some types of portrait photography.

2. Long Reach: The telephoto focal length allows you to capture distant subjects, making it ideal for wildlife and bird photography where getting physically close to the subject may be challenging.

3. Aperture Range: While the lens has a variable aperture from f/4.5 to f/5.6, it still allows for decent low-light performance, especially at shorter focal lengths. This can be useful in situations where you need to shoot in less-than-ideal lighting conditions.

4. Autofocus (AF): Autofocus capabilities can be crucial when shooting fast-moving subjects, such as wildlife or sports events. Check the specific AF performance and speed of the lens for accurate and fast focusing.

5. Image Stabilization (if available): Some lenses come with built-in image stabilization, which helps in reducing the impact of camera shake, particularly at longer focal lengths. This is especially beneficial when shooting handheld.

6. Quality Construction: Sigma lenses are generally known for their build quality. The construction materials and design contribute to the lens's durability and overall performance.

7. Compatibility with Pentax Cameras: Ensure that the lens is fully compatible with your Pentax camera model, including features like autofocus and exposure control.

8. Cost-Effective Option: Sigma lenses often provide a more budget-friendly alternative compared to some original equipment manufacturer (OEM) lenses, making them an attractive option for photographers looking for good performance without breaking the bank.