Following my post yesterday, someone on the Flickr page noticed some vignetting going on at the edges of the image, noticeably down the right hand side. This is whilst using my new Canon 16-35 mm L series wide angle zoom. As I had uploaded this from a laptop I really couldn't see the effect as noticeably as now on my main system. Hmmm. Here is another shot, taken within minutes, which had some vignetting but nothing un-sortable by the usual software:-
Pulled Two (working title!) © Glyn Davies 2010
Actually in many ways I perhaps like this shot more anyway, softer, more ethereal and even more graphic, but the point is I never really experienced this sort of vignetting with my old 17-40mm lens, only 1mm difference ! I do sometimes use a grad ND or polariser so the Lee Filter holder is in place, with the Wide Angle adapter and just one filter slot. It was simply not an issue on the 17-40 but I wonder if it now is with the 16-35, especially as the outer filter thread is now 82mm not 77mm, therefore physically being closer to the filter system regardless of angle of view ?
I now need to run some tests with and without the filter system, and with largest and smallest apertures, so see if I can identify why this problem 'sometimes' occurs.
There is an old saying, that "If something ain't broke, don't try and fix it" - it was hinted to me that this 16-35 really did have the edge over the 17-40 so I was persuaded to part with my cash and sell my trusty old beast. In hindsight, I was extremely happy with that old lens and wish I had never gone for this new one which doesn't really seem to be any sharper anyway and with all the additional expense on adapters and filters such as an 82mm HD Circular Polariser at nearly £200!
I will keep you posted about the test results but in the meantime I hope you enjoy the latest image from this sharp but so far problematic lens/filter set up.
All words and images are strictly copyright © Glyn Davies 2009
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