I have a few comparisons to post, probably not exactly what you were looking for, but I had limited time and limited ideas on where to shoot. I turned off corrections in camera (what I could) as well as Lightroom. Default sharpening.
I think there are three specific ways the bokeh on the CV 50 f/2 APO is better than the bokeh on the FE 55 f/1.8. First and most obviously the bokeh on the FE 55 f/1.8 (and I had that lens for over 2 years) has quite a bit of bokeh fringing up through f/4. Second, the out of focus highlight on the FE 55 f/1.8 often have pretty visible onion rings, and third, especially at f/2.8 the CV 50 f/2 APO has those perfectly round out of focus highlights from the unique aperture of the lens. For a quite a few images these advantages of the 50 f/2 APO might not make a big difference, but I think for quite a few images they will as well.
I think the bokeh fringing is the most relevant of these, and it certainly is a major failing. I personally don't shoot the kinds of images where specular highlights are relevant to me, although the shape of the highlight is obviously directly related to how OOF backgrounds are rendered in an image. In the 4 years I've had the sony 1,8/55 I think this is the only occasion I've ever seen the onion rings, but I'm sure that for some people it's way more common because of the subject matter that they shoot.
tsdevine wrote:
Point me to an example of what you'd like to see, I'll dry to shoot something over the weekend. It's supposed to be warm, goopy, and soggy this weekend.....but I'll see what I can do.
And yes, I'll may sure EFCS is off at or above 1/800th or so.
-Tim
Thanks, I think that would be great. I suspect images with subject at close to mid range, say 2-5m or so, with a cluttered background would be useful and representative of normal use for a lot of people. A few random samples below (from various lenses but to illustrate the type of pic). Anything with a busy background, horizontal and verticals at a distance, would be good.