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Lenses & Add-Ons

First lenses, SD cards and lens cleaning, with plain help on what the numbers on a lens mean.

  • Sigma 30mm f/1.4 DC DN (Sony E)
    Lenses & Add-Ons

    Best Lenses for the Sony A6400

    Find the best lens for Sony A6400 photos, from a flexible everyday zoom to bright primes for portraits, wide scenes, video and distant subjects.

  • Giottos Rocket Air Blaster (Large)
    Lenses & Add-Ons

    How to Clean a Camera Lens

    Learn how to clean a camera lens safely: remove loose dust first, then use a clean microfiber cloth and lens-safe cleaner for fingerprints and smudges.

  • Sigma 16mm f/1.4 DC DN (Sony E)
    Lenses & Add-Ons

    What Do the Numbers on a Camera Lens Mean?

    Learn what camera lens numbers mean, from focal length and aperture to mount and focus markings, so you can read a lens and choose one that fits.

  • SanDisk Extreme PRO 128GB SD Card
    Lenses & Add-Ons

    What Size SD Card Does a DSLR Camera Need?

    Find what size SD card a DSLR camera needs, how to check capacity and speed, and when 64GB or 128GB makes sense for photos and video.