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ACC

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Posts posted by ACC


  1. Hi Julie

    I use an iPad pro and the IOS Photos app which is a bit limited so i’m thinking about buying something else. I want to improve the quality of my pictures and be able to see the RGB histogram alongside my images as i’m working on them. Also see and edit metadata / tags alongside the image i’m working on. I’m looking at Affinity, Pixelmator Pro (rather than the £5 version) and Photoshop. There’s loads of tutorials and reviews about I just wanted an opinion from this group. Lots of the tutorials focus on major image manipulation which i’m not interested in. 

     

    thanks

    Angela


  2. EXIF shows ISO 6400 f5.6 and shutter speed 1/13. Not a burst but pictures taken over the course of a few minutes. They were the first shots of the day. I guess at those settings on a bright day the images just burnt out. Next step = interview my young daughter to see if she can remember why she had taken the camera off auto and what did she think she was doing with an ISO 6400 setting and also what caused her to switch back. The shots following the blanks are fine and all at ISO 100. 

     

    Thanks for all the comments.

    • Haha 1

  3. 17 hours ago, wiskerke said:

    Than the first suspect is still that lens. Has it been too hot at some point? Oil on the aperture blades and that sort of thing?

    Has it had a blow?

    My guess: it's only when you choose a small aperture and the blades either close too slowly or they don't close at all.

    If it's dirty blades the effect will be less outspoken when the shutter time is longer and/or the aperture is wider.

    If the aperture doesn't close at all, it's really easy to spot by putting the body on manual. If they only close halfway or unevenly, it has usually had a shock or blow.

     

    Software (firmware): usually only with a newer (never experienced that with Canon) or third party lens.

    Body failure like dirty contacts: all images would be affected.

    With Canon there are no mechanical functions in the body. And while  electronics can fail, it's usually the same for all images. (At least for those shot in the same way.)

     

    wim

     

    It was a hot day. 29 degrees and we’d walked for a couple of hours. My daughter had the camera on a neck strap so it was completely exposed to the heat. Are you thinking the heat caused the aperture blades to stick then after a while they spontaneously unstuck? I’ve had the camera on manual and a range of apertures while i look into the lens. There’s no sticking or failure to close that I can detect. Should I get the lens serviced/ cleaned?


  4. Hi

    This is odd. I’m wondering if anyone has ideas as to what happened. Canon 600D, 200 shots taken on holiday. Amongst them about 40 where the image created is completely white. All pixels = 255. Either side of the 40 “blanks” are plenty of normal properly exposed images. None of the camera settings were altered. Images were all shot outside in a park on a pleasant sunny day.

     

    Anyone seen this before? Any ideas? 

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