05-17-2016, 05:05 PM
In the reviews I see decentered lenses as faulty lenses with poor quality. Recently I discovered that this is not totally true.
I was at the repairs and was seeing how decentering is repaired:
The lens used to be mounted on a custom mount and project a chart on a wall now they just shoot a chart using live view plus HDMI projection on a screen, behind the camera mount there are a lot of screws that change position to lens elements, after adjustments any lens is back working nicely.
The bad news in Canon land this is available for all L lenses, but not all L lenses. The guy also told me centering quality is not lifelong after heavy use any lens can acquire such a defect, it is easily repaired. So having a centering defect on my 17-55 IS after ten years of use, isn't surprising.
If you have a decentetered lens this is not the end of the world especially if it is Canon L.
I know now the basics of the trick however I am not ready to do it and I prefer leaving to professionals.
I was at the repairs and was seeing how decentering is repaired:
The lens used to be mounted on a custom mount and project a chart on a wall now they just shoot a chart using live view plus HDMI projection on a screen, behind the camera mount there are a lot of screws that change position to lens elements, after adjustments any lens is back working nicely.
The bad news in Canon land this is available for all L lenses, but not all L lenses. The guy also told me centering quality is not lifelong after heavy use any lens can acquire such a defect, it is easily repaired. So having a centering defect on my 17-55 IS after ten years of use, isn't surprising.
If you have a decentetered lens this is not the end of the world especially if it is Canon L.
I know now the basics of the trick however I am not ready to do it and I prefer leaving to professionals.