• E
    Nice, informative writeup. Thanks
  • Click
    Click replied to the thread Show your Bird Portraits.
    Beautiful shot. Clear view of the subject. Nicely done!
  • A
    I'm glad to see some quantitative data on corner stretching. So for the 14-35 at 14 mm, the amount of distortion is 5.3%. This results...
  • J
    But that’s where I get confused. It can’t be cropped down to 6000 on the horizontal because there are only 6000 pixels to start. So it...
  • D
    To take it one additional step further... What about perspective, vignetting, exposure and cropping corrections applied in darkrooms in...
  • neuroanatomist
    Maybe just skip the examples. What would even be the point of an 18/4.5 lens? But I get your point. I’d say it’s a factor for those who...
    • 1771540985784.png
  • S
    I'm just curious how vignetting ruined landscape shots. Apart from the astro landscape niche discussed at length on other threads, my...
  • josephandrews222
    Spring is trying to spring here in the midwest USA, but cold temps return this weekend. Nice temps today, and the (sort of) trilling of...
    • K41A5078 picasa crop-topaz2-sharpen ps fix.jpg
  • M
    The choice of my examples is not great, here you are right,, long focal lengths are easyer to correct - So lets think about 18mm f/4.5...
  • justaCanonuser
    I guess the progress in computer based design, new optical materials and coatings will go hand in hand with a deeper digital correction...
  • Q
    I would go one step further... Your entire image with digital cameras is created with a series of digital corrections. Your sensor is...
  • S
    My take, Canon is trolling us, knowing someone would take a pic, but just using an R1 casing for testing out features for future cameras...
  • neuroanatomist
    Yes, what you say makes no sense. I’m not sure who is saying the image quality is better, there is a difference between better and not...
  • Malm
    That is my work-around at the moment. And that is also the reason why I worry that a much stronger image correction might create...
  • neuroanatomist
    Yes, it’s cropped…after the distortion correction stretches it out. Because of the 3:2 aspect ratio, correcting the distortion stretches...
  • Malm
    And I thought that these 'digital correction' allows for a better image quality as most writers assume. And now I can only use these...
  • Skux
    I'll happily take them. No one notices and the lenses are lighter. The only time they have bothered me was when pushing some very low...
  • J
    Main thing I don’t understand with the Digital Corrections is how they can clearly make a physical crop of the original image and...
  • neuroanatomist
    Yes, let's go back to the good old days when men were men and lenses were lenses. When real men looked through real viewfinders. When...
    • Lenses for MEN.png
  • S
    Were you not stopping down? I thought that was typical for landscape shooting? Slippery slope fallacy?
  • S
    Can you stack uncorrected subframes? Something like: process raw without the lens profile, then stack, then apply the corrections to the...
  • Malm
    Hi! As mentioned by some contributors before: The vignette is pretty strong and limiting the use of such lenses for certain...
  • S
    Definitely in the “hate it” side of this argument.. sure barrel distortion correction is lovely, and the ability to crop anywhere in an...
  • Sporgon
    They may yet kill the current 24mp high speed cam R3 line !
  • roby17269
    Does the VCM 50/1.4 require digital corrections to stretch image corners that do not cover the entire sensor? or just some geometry...
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