Hi all,
I recently had an opportunity to buy a used Canon 28-70/2.8L at a
good price and have been playing with it for the past couple of
weeks. This lens was intended to replace my old 28-105/3.5-4.5.
I was highly impressed by the optics and build quality of the lens.
My first test roll on Provia delivered what I expected from this
lens and it is very very good even at f/2.8.
However my question is about flare. On some other lenses I've tested
flare makes itself visible in the form of hot spots or starbursts.
With the 28-70 I don't see this happening, however, this lens seems
prone to "smearing"/"haze", i.e., it looks like haze over large parts
of the image, resulting in loss of contrast and colour. Of course, this
only happens when I point the lens at light sources / the sun / etc.
The lens has always been used with the hood. I've tested it with and
without a filter. The filter is an expensive B+W which is very clean, btw.
The flare seems more prominent with the filter on.
I was quite surprised when I compared this to my old 28-105 which showed
much less flare or "haze" effects under the same circumstances.
Question : Is this normal with this lens? Has anyone else experienced
this? Should I be concerned about anything?
Thanks!
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