Vignetting on RF 24-105mm stm lens

Discussion in 'Canon Lens Discussion' started by Paul_l987, Feb 12, 2021.

  1. Paul_l987

    Paul_l987 New Member

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    I recently bought an eos RP with a RF 24-105mm lens . Used for first time at sunrise this morning and found quite significant vignetting at 24mm . Is this “normal” for this lens ? or perhaps a malfunction?
    Many thanks for any replies .
    Paul.
     

  2. GDN

    GDN Well-Known Member

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  3. Paul_l987

    Paul_l987 New Member

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  4. johnsey

    johnsey Site Moderator Staff Member Site Supporter

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    I am assuming you are also shooting this wide open at 4.0? While the RF seems to have a little more pronounced vignetting from what I am reading a few other questions... are you using a filter, shooting a wide angle with a filter can introduce that too, underexposure will turn corners dark quickly.
     
  5. Paul_l987

    Paul_l987 New Member

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    Hi Gary,
    Thanks for the input :- shooting at 24mm - f11 to f16 ( mainly f11) - no filter- yes was under exposing ( still getting feel for camera) First time out with camera for a sunrise .Never had such pronounced vignetting ever , so abit concerned.
     
  6. Paul_l987

    Paul_l987 New Member

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    Further investigations: I’ve taken test shots across the entire aperture range @ 24mm at normal exposure + 1 stop under exposed and all photos had significant black vignetting.I attempted 35mm tests but it started to rain so aborted that effort . Think I’ll return with the lens to the retailer tomorrow to see if they can have it tested to establish if it operates within promised parameters. If this is as good as it gets then my opinion of Lens is ......well unflattering.
     
  7. Roy03

    Roy03 New Member

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    Is this the F4 lens or the F4-f7.1 that often comes as a kit with the RP camera, and if it is the latter, does it make a difference?

    Roy
     
  8. Caladina

    Caladina Active Member

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    i take it you can illuminate the peripheries in-camera through lens corrections if you wanted to?
     
  9. Paul_l987

    Paul_l987 New Member

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    I have the in camera lens correction option switched on .
     
  10. Paul_l987

    Paul_l987 New Member

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    Hi Roy , yes it was part of the package , but I still expected it to work . Cheers Paul.
     
  11. johnsey

    johnsey Site Moderator Staff Member Site Supporter

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    I think we for the most part were thanking you had the 4.0 L copy. Having the inexpensive $400 4-7.1 stm, I'm less surprised you say there is noticeable vignetting, it still sounds like it could be performing outside of range.
     
  12. Caladina

    Caladina Active Member

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    can you post a picture of the vignetting, just to rule out an optical fault outside what others might be experiencing
     
  13. GDN

    GDN Well-Known Member

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    I think that you will find that it's the nature of this lens and that there is nothing wrong so to speak with your lens. Even so I would be interested in how this pans out with this lens for you.

    Gary
     
  14. Paul_l987

    Paul_l987 New Member

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    Update : I took the lens back to the camera shop yesterday and showed the salesman the jpgs of the vignetting at various aperture settings. He replaced it with a new one .I’ve been testing the replacement and the deficiencies are more akin to the examples shown in the reviews I have read . Thanks for all assistance. Cheers Paul.
     
    Roy03 likes this.
  15. GDN

    GDN Well-Known Member

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    It's good to see that it worked out ok in the end.

    Gary
     

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