p.13 #1 · Official: Voigtlander 50mm f/2 APO VM mount
tsdevine wrote:
Unfortunately you will probably see this even with shading correction turned off. It affects multiple lenses, even some Sony lenses. You could tape the contacts, but then you lose communication of EXIF etc.
Did you push the files pretty hard? I think you can minimize it by using ETTR, I have not noticed it in normal shooting and RAW file processing. Certain types of shooting seem to bring it out more.
The sample picture above was pushed hard in post-processing - mostly to make sure the banding was visible but it is noticeable with more delicate post-processing and makes printing not possible without some workaround. The issue mostly arises with clear skies. This image was exposed pretty far to the right.
p.13 #2 · Official: Voigtlander 50mm f/2 APO VM mount
Unfortunately this appears to be only something Sony can resolve by removing whatever processing they are doing that causes this. If you slightly rocker the lens so it's not fully locked in, you'll see this disappear. If Sony doesn't know a lens is connected it bypasses whatever is causing this.
You could create a profile and remove it via Lightroom Flat Field or Cornerfix, which is painful.
lakatua wrote:
The sample picture above was pushed hard in post-processing - mostly to make sure the banding was visible but it is noticeable with more delicate post-processing and makes printing not possible without some workaround. The issue mostly arises with clear skies. This image was exposed pretty far to the right.
p.13 #3 · Official: Voigtlander 50mm f/2 APO VM mount
I turn off all in-camera corrections as I find them to work against our images.
It's been demonstrated on FM (need to find the thread) that in-camera vignetting correction is the worse aggressor but I would think that even distortion correction is best done in post as well.
p.13 #4 · Official: Voigtlander 50mm f/2 APO VM mount
Thanks for the insights. I will definitely turn these settings off and experiment. Would you also turn of Chromatic Aberration Comp.?
Fred Miranda wrote:
I turn off all in-camera corrections as I find them to work against our images.
It's been demonstrated on FM (need to find the thread) that in-camera vignetting correction is the worse aggressor but I would think that even distortion correction is best done in post as well.
p.13 #5 · Official: Voigtlander 50mm f/2 APO VM mount
I was able to start from scratch and re-edit this photo. I stayed away from adjusting saturation levels, dehaze, and was careful about overdoing contrast adjustments. The banding is pretty imperceptible and I happy with the color rendition given that I deviated from my typical workflow.
The day was wet and rainy so I couldn't take the 50APO out for some test shots with the correction settings turned off. Thanks to you guys for the recommendations.
p.13 #9 · Official: Voigtlander 50mm f/2 APO VM mount
I've seen a few, but too few to mention (hat tip Frank). Don't expect objectivity when the purchase cost multiplier is (currently) 8.57. Impartiality is inversely proportional to this critical analytical metric - this is the second law of lens comparison dynamics
p.13 #12 · Official: Voigtlander 50mm f/2 APO VM mount
lakatua wrote:
Wondering if anyone else has experienced or has insight into what may be happening with the rings/circle in this photo. It was taken this evening at sunset with a sony a7riv and the Voigtlander APO 50mm F/2.
I have some other examples but this photo stands out. When shot directly into the sun it is not an issue but when shooting sideways to the sun (if that makes sense) these rings often appear but not always. I was facing south with this shot and took another facing north and the photograph when facing north did not have these rings.
p.13 #14 · Official: Voigtlander 50mm f/2 APO VM mount
Unfortunately, you can get these concentric rings even with shading correction turned off.....except maybe with the a1. Rumor has it Sony may have fixed that phenomena.
The OP said he had it set to auto...I'd be curious to see if setting it to off fully solved the problem. I've seen similar behavior even with shading correction turned off.
Fred Miranda wrote:
This image sample shows why it's wise to turn off vignetting correction in-camera. Best to do in post if needed.
p.13 #15 · Official: Voigtlander 50mm f/2 APO VM mount
Fred Miranda wrote:
Is the CV 50/2 APO sharper than the Leica version at corners?
I've never used the Leica version. The quoted was a summary from feedback I've read online. If it's true that the CV is sharper in the corners, it's probably only when wide open at f/2 at infinity. It makes sense to me since vignetting at infinity is something Canon sacrificed with the RF 50 1.2 in order to get sharp corners wide open, and the CV APOs seems to follow that design choice.
p.13 #17 · Official: Voigtlander 50mm f/2 APO VM mount
TerryLee wrote:
Did anyone test this lens on a SL2/SL2-S with the Leica adapter?
Any issues with corner sharpness or colors?
Hi Terry and welcome to FM.
You may wish to look at this thread where Fred compares the lens with the Voigtlander 50mm f1.2 and the Leica Summilux 50mm f1.4 on the SL2. I am not sure which adapter that Fred used, but knowing Fred, I suspect it was the Leica.
Hope this helps; yes the thread provides much more information than you have asked.
p.13 #18 · Official: Voigtlander 50mm f/2 APO VM mount
naturephoto1 wrote:
Hi Terry and welcome to FM.
You may wish to look at this thread where Fred compares the lens with the Voigtlander 50mm f1.2 and the Leica Summilux 50mm f1.4 of the SL2. I am not sure which adapter that Fred used, but knowing Fred, I suspect it was the Leica.
Hope this helps; yes the thread provides much more information than you have asked.
p.13 #19 · Official: Voigtlander 50mm f/2 APO VM mount
naturephoto1 wrote:
Hi Terry and welcome to FM.
You may wish to look at this thread where Fred compares the lens with the Voigtlander 50mm f1.2 and the Leica Summilux 50mm f1.4 on the SL2. I am not sure which adapter that Fred used, but knowing Fred, I suspect it was the Leica.
Hope this helps; yes the thread provides much more information than you have asked.
Thanks a lot, very helpful comparison. Looks like it doesn't perform very well. I just got an SL2-S and this looks like a very good lens for its price. But I guess I will test my 50 Summicron (non-APO) on the SL2-S, hope it performs well.
p.13 #20 · Official: Voigtlander 50mm f/2 APO VM mount
TerryLee wrote:
Thanks a lot, very helpful comparison. Looks like it doesn't perform very well. I just got an SL2-S and this looks like a very good lens for its price. But I guess I will test my 50 Summicron (non-APO) on the SL2-S, hope it performs well.
Keep in mind that the main issue is induced field curvature for this lens when using it on a sensor with a thicker filter. For the test linked above, the subject located at infinity was focused at center. However, if one focuses at corner, it will improve greatly (in detriment of center's IQ) but still not as good compared to using it on the M sensor body.
So, if shooting wide open, your subject will still be sharp at center, mid-field or corners when focused on these locations. The issue will be that the amplified field curvature might make rendering uneven depending on your subject distance. For example OOF corners may sharpen up compared to center at mid-distance where there is not enough blur to mask this issue.
