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Question(s) for RF 14-35 owners

Started 2 weeks ago | Discussions thread
Wing2 Contributing Member • Posts: 512
Re: Question(s) for RF 14-35 owners

Basil Fawlty wrote:

Wing2 wrote:

Distortion and vignetting is not serious after correction. The RAW file uncorrected does have serious distortion and vignetting. However, if you manually correct the RAW file, you can get as wide as 13mm

Thanks for your reply! Just curious, from your experience, was you zoom out, at what focal length would you say the uncorrected distortion and vignetting cease to be a problem? In other words, how bad is it at 15mm? 16mm?

Thanks

Like a lot of RF lens including the 16mm 2.8, 15-35 2.8,24-240, 14-35 4.0 is designed to be working with distortion correction software/firmware to start with.

The theory behind this is distortion and vignetting are now easily correctable by software or firmware but the extreme wide angle and wider zoom range achieved using this method is close to impossible (may be possible at very high cost) to be done using pure optical solution.

I can see distortion and vignetting on uncorrected RAW files from 20mm or below. If you refuse to use any software to do post-processing, you may be better off shooting jpeg (Canon camera's firmware would correct it for you)

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