Plus, free shipping on everything.

Shop the deals ›

Today only.
Online and in store.

Current Offers

  • (1)


  • (1)


Enter Custom Price Rangeto
  • (1)


  • (1)

Lens Type

  • (1)

Filter Diameter

  • (1)

Maximum Aperture

  • (1)

Maximum Focal Length

  • (1)

Minimum Focal Length

  • (1)


  • (1)
Sigma - 70-300mm f/4-5.6 DG Macro Telephoto Zoom Lens for Select PENTAX DSLR and 35mm SLR Film Cameras - Black - Larger Front
  • Model: 509109
  • SKU: 5956016
Compatible with select PENTAX full-frame DSLR, APS-C-size DSLR and 35mm SLR film cameras; 58mm filter size; 4.9' minimum focus distance
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare