Newbie question

Discussion in 'Beginner Questions' started by Jakob Rohde, May 15, 2021.

  1. Jakob Rohde

    Jakob Rohde New Member

    Joined:
    May 15, 2021
    Messages:
    1
    Equipment:
    Canon EOS RP
    Canon 24-105 mm f4-1.7 IS STM
    Canon 50 mm f1.8 STM
    Samyang AF 14/2.8
    Canon RF 100-400mm f/5.6-8 IS USM
    Canon RF 24-105 F4 L IS USM
    Hi
    I have purchased the Canon 50 mm RF f1.8 STM lens, and I wonder how I can change aperture even though the lens has a fixed aperture of f1.8.
    Thanks
    Jakob
     
    Jakob Rohde, May 15, 2021
    #1
    VikingSteve likes this.

  2. Craig Sherriff

    Craig Sherriff Well-Known Member Site Supporter

    Joined:
    Apr 25, 2017
    Messages:
    3,177
    Location:
    Tasmania, Australia
    Equipment:
    60D, 10D, 50D 1dmark3, T70, AV1, lenses ranging from 28mm to 600 mm, canonet Junior, Canonet QL 25, Mamiya C3 and 3 lens sets,Mamiya 645 pro TL and 3 lenses. Pentax MG and various lenses, Toyoview 4 * 5 inch large format camera,Calimat C1 8*10 inch ultra large format camera.
    Welcome Jakob, by the looks of it you have the latest version of Canon's nifty 50, I have the older version and you change the aperture in the camera, There is several very good video clips on you tube about this lens and using it with your camera it would be informative to have a look. any other question, we are here to help.
     
    Craig Sherriff, May 15, 2021
    #2
  3. johnsey

    johnsey Site Moderator Staff Member Site Supporter

    Joined:
    Apr 21, 2017
    Messages:
    2,134
    Location:
    Fargo, ND
    Equipment:
    5dMk4, 5dsR, 5dMk2, 20D, 70-200 2.8L IS, 100mm 2.8 Macro USM, 50mm 1.4, 85mm 1.8, 17-40mm 4.0L, TS-E 24mm 3.5L II, Rokinon 14mm 2.8; Pixma Pro-100
    HI Jakob,

    Your lens has an aperture range from f1.8 to f22, these are changed automatically or manually using the camera depending on the mode you have set.

    Your fixed aperture is expected on a fixed length lens. An example on a variable aperture would be when you buy a zoom lens, the cheaper ones usually sacrifice optical performance and build, these end up being plastic and many times the wide aperture is a variable aperture, This means that let say you buy a 70-300 and it says "4 - 5.6" the 4.0 is available at 75mm but as you zoom out you loose the option and only go as wide as 5.6.
     
    johnsey, May 15, 2021
    #3
    john_1968 likes this.
  4. GDN

    GDN Well-Known Member

    Joined:
    Jul 22, 2018
    Messages:
    2,170
    Location:
    South Island, NZ
    Equipment:
    A little Canon stuff
    Hi Jakob,

    With this R mount lens, you have two choices on how to change the aperture. You can use the control ring that is on the lens or can change the aperture via the camera body.

    Gary
     
    GDN, May 15, 2021
    #4
  5. Craig Sherriff

    Craig Sherriff Well-Known Member Site Supporter

    Joined:
    Apr 25, 2017
    Messages:
    3,177
    Location:
    Tasmania, Australia
    Equipment:
    60D, 10D, 50D 1dmark3, T70, AV1, lenses ranging from 28mm to 600 mm, canonet Junior, Canonet QL 25, Mamiya C3 and 3 lens sets,Mamiya 645 pro TL and 3 lenses. Pentax MG and various lenses, Toyoview 4 * 5 inch large format camera,Calimat C1 8*10 inch ultra large format camera.
    According to the video clip on you tube, using the control ring to change the aperture is done by setting it up in the customize menu when in video use.
     
    Craig Sherriff, May 16, 2021
    #5

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