On 5/8/2016 5:52 PM, Paul Stenquist wrote:
Here’s one example. This is a pic of Grace shot with the DFA 150-450 and the 1.4X converter. I of course wouldn’t have shot this with that combo, but she wandered into the yard when I was shooting birds, and I think it shows the vignetting clearly. To me it’s not a problem. Crop mode sacrifices much more of frame. The camera in AUTO crop chose the crop mode of course because the converter is an APS-C optic, but I overruled it and went full frame. http://photo.net/photodb/photo?photo_id=18230104&size=lg Paul
The level of vignetting with that combination doesn't appear to be too bad. I expect it would be possible to eliminate it almost completely in Camera Raw or Lightroom.
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