Here are two pics to illustrate the magenta "target pattern" with the FE35.
The pattern emerged capturing dark skies, not shooting anywhere near the sun so it is not a flare but some sort of chromatic aberration. What we are looking at here is a series of concentric purple rings. the problem is, once you know what to look for one will see it even in very mildly corrected pictures.
The first shot is shot at f2.8, the second one at f5. The first pic has been doctored with a crazy cc to make the rings more apparent (maxing magenta saturation will result in solid, blocky flat magenta crud, but it's so far from a realistic use so I did not bother export that), the second has a strong saturation boost as well but now i can see the pattern emerge even in mild corrections.
I am not posting that to poo-poo the lens or be a picky pixel peeper - Can one take fabulous shots with the FE35 ? Of course. Is there a flaw in the lens that will bring unwanted color noise in your pixels and restrain what can be done with them ? yes. So, troublesome at least for me!
Nicolas M wrote:
and here is a somewhat more realistic pp with much more restrained values. I still see the rings!
Thanks, I see what you mean. And I was about to answer that that is easy to provoke with any lens with some harshish sky treatment. But not here, here's multiple overly harsh contrast treatments with the FE55 but nothing discolored comes out except some annoying posterization. Maybe it's a wider angle/vignetting problem (?).
I've seen it occasionally in other lenses as well. And with Canon 5D2, though it can be extreme with a combo such as A7 + CV 15/4.5. Vignetting lens and overcast sky is good starting point and - as the Leica guy says - increased vibrance/saturation. Increased vibrance is one common side-effect you can get with various contrast enhancements.
thank you for the link, Tim. The page on leicaboss is a worthy read... I need to go back to all that I shot so far and decide if I can live with it or not. Wfrank, the 55 does not seem affected at all... Thank you for posting this.
wfrank wrote:
Oh you have a blog Phillip! Did not know, looks readworthy :-)
hehe, thanks
I started it last week but so far the response was pretty positive, I think I like blogging
Yesterday I published an article about how I work with the A7, it might be interesting for some of you: working with the A7
Phillip, great shots. Maybe a little underexposed, or maybe my monitor too, but the sharpness makes them almost jump of my screen. Would you mind sharing your pp settings, particularly the sharpness! Again, awesome work. I had really convinced myself that I wasn't going to get this camera and am quickly losing that restraint. Just a little concerned about the magenta cast with a wide angle lenses. Thanks gain everyone for posting these samples!
fmphoto wrote:
Phillip, great shots. Maybe a little underexposed, or maybe my monitor too, but the sharpness makes them almost jump of my screen. Would you mind sharing your pp settings, particularly the sharpness! Again, awesome work. I had really convinced myself that I wasn't going to get this camera and am quickly losing that restraint. Just a little concerned about the magenta cast with a wide angle lenses. Thanks gain everyone for posting these samples!
have a look at my blog. I will write about it in more depth in the coming days.
