Seriously, I think one thing you guys have overlooked with this lens, is that the internal reflections give VERY bad coma in high contrast areas at f1.4!! Personally I found it unuseable at f1.4 but even at f2 it will be as sharp as any other lens, this is one of the only (albeit major) flaw that I found with this lens. Other than that, I've been using my 50mm f1.2 much more now since realising it's acute focusing issues.
Too bad it cannot be stopped down to f1.6 since the aperture ring doesn't allow that to happening. I am not wanting optical perfection, only want to note the disadvantages when there's only praise for it. And I don't shoot on digital only, my F100s and FM2s shows it's flaws as well.Um, you'll probably find that by stopping down even a *tiny* bit, to like 1.6 or 1.7, you'll significantly reduce that. Besides, I think you're being somewhat over sensitive to this, optical design is a game of imperfect compromise. Looking for optical design challenges in high contrast areas wide open?! If you want wide open perfection at 35mm get a Leica ASPH Summilux.
Consider that the first design of this lens was during the late 60's, and it doesn't use an aspherical element and has way less elements, is smaller and lighter than the Canon design. Also consider my point from above, if you haven't used this lens wide open with all of the imaging option available then you don't really know what it can do. Shooting only on digital gives an incomplete view of what the lens can do.
Since this is a lens and technical forum, I was put in technical comments with the lenses, the emotional aspect of photography cannot be denied but sometimes you want to seperate the two and analyse the technical side of things without the clingyness of the emotions, and vice versa of course.So what? Is your goal to have a lens free of aberrations, or is it to have a lens that lets you get shots that no other lens can? I see it like this: If you are driving a specialized race car in a quarter-mile straight line, are you going to be worried that a few moths are splattering on your windscreen?
Almost all people judge images based on the emotional, conceptual, intellectual, and over all visual impact of prints, not on technical issues. Additionally, many people think that aberrations simply look cool and make images have a special mood.
If you have a damned good shot, no one is going to be looking at your lens aberrations, and if having f/1.4 got you that shot while f/2.0 would not have, what is to complain about?
Maybe I've got a bad copy? At f1.4 mine is quite in high contrast areas, halos, extreme blue fringing.I'm not the type to photograph lens charts or 'pixel peep' and to be honest, the examples of coma aberration that I've seen on the net have never seemed that bad. As an amateur with no photo editor breathing down my neck and no customers to satisfy, aberration seems to be a flaw worth accepting if the only chance of getting a shot is by shooting at f1.4.
Maybe I've got a bad copy? At f1.4 mine is quite in high contrast areas, halos, extreme blue fringing..
I've just had a close look at my test roll. Please excuse the scan, but have a look at the two areas circled, is this an example of the halos you've noticed?
http://farm4.static.flickr.com/3308/3345993555_6482dcc836_b.jpg
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