Steve Spencer Offline Upload & Sell: On
|
p.46 #1 · Voigtlander 28mm f/1.5 Nokton Review | |
Yogifi wrote:
Thanks Steve, appreciate the handholding after I threw my tantrum on day 1! There was a comment after the first impressions about satan gargling the light and spitting it back out, that I edited out to be a little more civil.
This 28mm on a full-frame camera is my first, most of my (still limited) experience has been at around 45-50mm, and mostly taking photos of family.
I did recently pick up the 35mm Sigma f2 but I barely touched it, it was just a great price brand new and figured it would be good to have something wider with autofocus and I remember the threads with it performing well in the comparison. So these wider lenses on a full-frame camera are new to me.
With the first brick wall you can see all these really saturated yellows between the bricks, it doesn't exist in real life, it looks more like the fuji. With the x100 and the wide angle adaptor the light doesn't have this funky look to it. Whereas on this, in that stronger light, the bricks just looked funky, more so to the sides. Yes it had a lot more contrast but the sharpness I wasn't seeing it, when I look closely at the bricks they just look messy.
But with the fuji I'll never get sharpness like this longer distance, and there's definitely a lot of quirks with it at larger apertures.
I'm thinking maybe it's the focal length that might be adding to the funk in addition to the harsh light. Like with my 50s, every image is clean, even if some lenses have cleaner images than others, they're all pretty clean, across different light. With the 75's it's even more clean, especially the TTA f2. So maybe that has something to do with it, I'm not sure. I don't see it on the fuji.
Tonnes of issues with the fuji, but I don't feel the need to go past f8 on the apsc, unless I'm shooting something with tonnes of depth like this:
https://www.fredmiranda.com/forum/topic/1842505/2#field -- this will look different with aperture right? So I'd assume that was wide-open to illustrate it best..]
So for something like this where it's a scene in close distance you'd use f16 if there was enough light? And maybe focus on the mid-point like the tree:
https://i.postimg.cc/SqFmhdTy/DSC04000.jpg
At f11 I feel like it wasn't enough and something like this sort of situation is going to be a frequent thing for me. I think apsc handles this with more ease ... in a way.
F11 with x100vi + wideangle:
https://i.postimg.cc/5fqvMpWD/X1001620.jpg
I don't mind the blob part of the flare, I see a very similar (single) small blue/red blob in many images where I shoot into the sun, it doesn't bother me:
https://i.postimg.cc/rmTX8g5s/image.png
It's cute. Get's more defined edges and saturated at smaller apertures. There are other parts to the flare sometimes that are bigger offenders, but flare in general I'm okay with.
But with the side-by-side of images taken seconds apart with the boats, blobs probably weren't the right description, it was like fringing I guess, let me get a bigger closeup so we're talking about the same thing:
https://i.postimg.cc/tgjnjQvv/image.png
And I was just not understanding why at infinity distance, with the boat in the shade, and a slight re-adjustment of the frame, why the pole (on the right-hand side) would be much more yellow in one shot and not in the other. And that random yellow showing up on things reminded me of the brick wall comparison against the fuji in the strong light.
With the shot of the building (thank you for commenting) I was happy with most of the front facing bricks at f5.6. Towards the right hand side, which is probably harder to see without opening the image in a new window to get the full res (pain to do with the host but at least it's available to zoom around), where the building starts to curve on the right - I saw an improvement going to f8. But I wasn't understanding why: if it's at infinity, then why does it matter. It was a small improvement at f8 on that side. Maybe that's to do with the FC?
F8 left, F5.6 right at around 400% - BUT, it wasn't on a tripod and this section on the F8 is a little more inwards (towards the centre) compared to the f5.6.
https://i.postimg.cc/YpMcy2tP/image.png
And just for reference, closer to the center at 200% with the a7cii:
https://i.postimg.cc/LmsLkL1W/image.png">
Most of this is minor and I don't want to put all this on Steve so you're more than forgiven if you leave me to figure it out 
The main thing for me is going to be clean, sharp images in bright sunlight without the funk - that's what I want to focus on. And lots more where I set it to f5.6 and infinity focus and just see what I get. ...Show more →
Now I see what you are concerned about and let me ask what RAW converter you are using and if you are correcting for lateral chromatic aberration (CA)? I think that is what you are pointing out, and it generally cleans up really well with most converters (I use adobe camera RAW to convert to either Lightroom or Photoshop and it handles this CA really well). Lateral CA (as opposed to axial aka longitudinal) CA does not reduce as you stop down the aperture, so it will be there even at small apertures. It is especially apparent in harsh light, so you will see it less with softer light and it should clean up well in post-processing.
If you tell us about your post-processing we may be able to help you get rid of it even in these images, but there is a bit of lateral CA with the CV 28 f/1.5, but I haven't found it a problem as I can correct for it well in post processing.
It can look pretty funky and is a real color problem when uncorrected, however. I think if you get lateral CA corrected well it may help with what is bothering you about this lens.
|