uhoh7 wrote:
I find those stunning in the off rendering, how many blades in that lens?
you have so many killer shots--I love it.
thanks! 10 blades if my count is correct, makes f/2.8 and f/4 bokeh look much better than on my more modern lenses. all those shots are wide one though, so the number of blades doesn't play a role.
congrats on the new lens! i'm very jealous of your ability to be on the slopes so often (or even see mountains for that matter).
philber wrote:
uhoh7, I would be most grateful if you taught me how to get rid of this colour shift. I tried, and got nowhere. Devil is in the details, I suppose.
I have to learn myself, philber, but I have read up a bit, and everyone else is using it. Maybe someone will chime in, but I will brief you when I get it down.
thanks! 10 blades if my count is correct, makes f/2.8 and f/4 bokeh look much better than on my more modern lenses. all those shots are wide one though, so the number of blades doesn't play a role.
haha--what a poser I am! of course the blades don't do anything wide open! What does account for the incredible variation in bokeh in all these lenses?
Well, my experience with it, and I have to admit, I am not very good at this sort of thing, is that Cornerfix is very good at correcting vignetting, which is what it is designed for, and not colour shift.
uhoh7 wrote:
haha--what a poser I am! of course the blades don't do anything wide open! What does account for the incredible variation in bokeh in all these lenses?
lens design and how the designer choose to correct for various aberrations. sonnar lenses like my nikkor tend to have a distinct look, part of which is due to under corrected spherical aberration that tends to lead to a gentler transition from in focus to out of focus behind the subject. my pen f lenses seem to accept a fair amount of field curvature in order to prevent astigmatism, which gives them rather swirly bokeh.
philber wrote:
Well, my experience with it, and I have to admit, I am not very good at this sort of thing, is that Cornerfix is very good at correcting vignetting, which is what it is designed for, and not colour shift.
Hi philber
which lenses to you want to correct?
have you shot the "profile shot" white background? It sounds like you have tried, but they say this can take several atempts to get it right.
these lenses also shift colors on the M9 and there is specific reference to this, also noting that "coding" for lenses on the leica is another way to deal with it---and coded lenses need their own profiles.
I figured there would be lens profiles already for the CVs on nex, however I can't find them, but making one is mainly a matter of getting a good shot against a white background.
The detail seems quite good in this picture as well. I see some yellow edges, but it could also come from the strong sunlight? I have no experience with this lens, I only have the modern ZF version, which differs from other ZF lenses I have had. IS it the MM or AE version. these days I only look for the late production ones.
Charlie, ideally, I would like to correct a Contax G 21mm. Though even the learned Lotus has given up on that one. My second choice would be a ZM 25mm. Both lenses are IMHO superb, and what I can see in the pics despite the colour shift confirms that. Thanks to your info, I will try again.
Lots of great photos here! I just picked up a NEX-5 the other day to give it a whirl, so far I am impressed. Just not-so-patiently waiting for my adapter(s) to arrive...
Used the 18-55 kit lens on my favourite test subject yesterday. He seems to be thinking...'why did you get the silver model?'
