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Welcome to the Canon EF 300mm f/4L IS USM.

When posting images to the pool try to include EXIF data and use the common lens tags below adopted by this and other Canon groups:

"Canon EF 300mm f/4L IS USM"

Please use the search function and read through existing threads to find answers to common questions before posting a new question.


  • 300mm F/4 L 運動攝影

    is it easy to take shot on sport function?

    kwanon_2e2455 months ago1 replies

  • Cannon 300M f/4L IS USM or canon 100-400 is ii for birding

    Hello Guys, I am planing to buy new lens. I am confuse between Cannon 300M f...

    pinakin2in57 months ago2 replies

  • Settings for Airshows

    Please may I ask for guidance on subject settings. Canon 7D Canon 300mm F4 Cano...

    8lueskies67 months ago2 replies

  • lens strap

    Hi all Just wanting to.know if you can get a strap to add to the lens for car...

    Steven Peachey68 months ago0 replies

  • Why should I buy a 300mm F4 IS with 1.4 tc and not a 400mm F5.6

    Hi Folks, Decision time. I need a new tele and am looking at 2 choices. Th...

    Mike Kruiper Photography69 months ago37 replies

  • Compatibility...

    Sorry guys for beeng NOOB! can you help me, 7d or 70d for my 300mm? thank you...

    knightshirt71 months ago7 replies

  • Troubles

    Hi all! I use my 300f4 l is all the weekend. Every thing where ok until I notic...

    Stelafon77 months ago1 replies

  • canon 7d setting

    any Tip while im shooting wild life? tnx

    knightshirt81 months ago2 replies

  • 300mm + 7d

    Hi, Im a new user, is it ok to combine this body and lens? thank you

    knightshirt84 months ago5 replies

  • New Toy!!

    Just got this fantastic lens and I am having a blast. Still getting used to it b...

    gshankuf85 months ago4 replies

  • Whats your bag for this lens?

    Greetings everyone. Im a very happy new owner of this awesome lens and im wond...

    tolis*86 months ago6 replies

  • 2x extender

    im thinking of purchasing @x canon iii extender, i no it will be manual focus on...

    lackadaisical marble88 months ago1 replies

  • canon 300mm f4 or 100-400

    with october coming up i want to photograph red deer in the wild. i have always ...

    lackadaisical marble88 months ago2 replies

  • Err message?

    I just bought this lens, and was really excited to fire off some shots until i g...

    ericjmalave90 months ago5 replies

  • 1.4 extender

    Anyone else using this lens in combination with the 1.4x teleconverter? It makes...

    Surfrdan91 months ago25 replies

  • 1.4 TC

    Hey all, I was wondering if this lens is compatible with the Canon 1.4 series t...

    Eric Heisey95 months ago2 replies

  • + Kenko 2x DGX. will still AF?

    hi all users of this lens! currently i only have the Kenko 2x DG teleconverte...

    marco mariano [engrmariano]96 months ago8 replies

  • New 300mm F4 IS Owner

    Just wanted to say hello Just got a new 300mm F4 IS lens for under £1000. T...

    phil.seagust100 months ago2 replies

  • Pulling the trigger for 300mm F4L IS USM

    I am buying it for about 750.00 is that a fair deal for built 2004? What should ...

    Peter Bangayan102 months ago11 replies

  • Almost sold on this lens

    Hi there! I don't have this lens yet, but I'm almost sold. Since I have an EF...

    Erick Houli111 months ago21 replies

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