p.6 #1 · Official: Voigtlander 15mm f/4.5 III E-mount
GMPhotography wrote:
Looks like a nice copy Mike. I'll find some sample images from mine I shot in NY . See how those corners look. Mike does yours have the petals on.
Yep, still has the petals. I don't often use filters.
p.6 #4 · Official: Voigtlander 15mm f/4.5 III E-mount
mcbroomf wrote:
This is the test image I made with thew 15mm CV III M mount when I 1st got it. The link is to a 50% sized image if I recall correctly. Like Guy's, this copy seems to have very sharp corners. Taken at ~F9 on an A7R, a good distance away but not infinity. It was processed in LR with Auto CA on
Thanks for posting this Mike. This is another great example of how the VC15/4.5 performs great even at the edges. The branches follow the sagittal line but still great performance.
p.6 #5 · Official: Voigtlander 15mm f/4.5 III E-mount
rscheffler wrote:
Yes, would be great, but I think the most realistic solution to this lack of documentation is to nicely ask Roger at LR to generate the MTFs.
I think Roger has a hard time testing ultra wides at infinity but I will ask.
p.6 #6 · Official: Voigtlander 15mm f/4.5 III E-mount
Well I found some really good Choppy images. This one just seems to put all issues out on the left wing as it looks just about what you would expect. Im in NY here , Times square and obviously not infinity but i consider a lens like this infinity after about 100 feet but thats me but check this out. Im impressed with the extreme corner. I lifted the shadows upper right corner
p.6 #7 · Official: Voigtlander 15mm f/4.5 III E-mount
My guess most likely f5.6 it was fairly much in the shadows. So my point being here this is not looking like anything we are seeing out of Freds three copies he is testing. There is NO smearing i can see
p.6 #11 · Official: Voigtlander 15mm f/4.5 III E-mount
Fred Miranda wrote:
It would be nice if Voigtlander published MTF graphs for their lenses.
rscheffler wrote:
Yes, would be great, but I think the most realistic solution to this lack of documentation is to nicely ask Roger at LR to generate the MTFs.
Fred Miranda wrote:
I think Roger has a hard time testing ultra wides at infinity but I will ask.
It would be great if he could... I'm actually hoping to see MTFs for all of the Voigtlander lenses. It would fill a current information void.
p.6 #13 · Official: Voigtlander 15mm f/4.5 III E-mount
Well don't want to bore anyone anymore but as you can see it can do extreme corners. Im hoping Fred can see where the issue is on his testing with this versus the copies he has. Im baffled myself. FYI mine is less than a year old and bought it new from Cameraquest
p.6 #14 · Official: Voigtlander 15mm f/4.5 III E-mount
jhinkey wrote:
I'm not alone then with difficulties focusing my 15/4.5 on my A7RII!
Unlike many of my other lenses that are very very obvious when peak sharpness is reached (I'm even talking about my 16/3.5 AI fish that clearly has a peak infinity sharpness), the 15/4.5 has a broad range of focus turn that all appear to be pretty close in sharpness in the center of the frame - never really looked in the corners while focusing to make sure they are "optimal".
I'm still interested in the native E mount version just for convenience of having the focal length/aperture in the EXIF.
I have the original v1 of the 15mm, and have had for 20yrs. I have used it quite a lot on the nex 6 and with that I do just the same as I did with the M3 and M6, I simply use the focus scale, and hard stop for infinity shots, its not coupled to the rangefinder anyway. You need an adapter with correct register of course but I wouldn't want to use anything else personally. Should surely be the same with the new one? especially the E mount version. The original is pretty useless on the A7 of course, the colour shading and light fall off in the corners can be sorted but the loss of sharpness cant, I have been waiting to see if the E mount is any different to the M mount before deciding whether to change.
p.6 #15 · Official: Voigtlander 15mm f/4.5 III E-mount
Guy your samples look very good to the corners. I wonder if it is adapter related. I don't think the lens has floating elements, but I have seen some of my lenses that don't (for instance the Rollei/Zeiss 18/4) have their corner performance affected using different adapters. Obviously, no adapter on the e-mount sample Fred has though
p.6 #16 · Official: Voigtlander 15mm f/4.5 III E-mount
Very interesting, Guy.
FWIW, I also have this lens in M mount, but shoot it on the M240. I need to revisit my tests from last year but think my results are closer to Fred's. And from what I've seen it's possible this lens performs slightly better on Sony than Leica. I also have the previous version. In respect to across-frame sharpness I don't recall seeing much difference, but vIII has better distortion correction, and of course, no color shift.
p.6 #17 · Official: Voigtlander 15mm f/4.5 III E-mount
pdmphoto wrote:
Guy your samples look very good to the corners. I wonder if it is adapter related. I don't think the lens has floating elements, but I have seen some of my lenses that don't (for instance the Rollei/Zeiss 18/4) have their corner performance affected using different adapters. Obviously, no adapter on the e-mount sample Fred has though
I had a Metabones which has been sold and using a cheap Fotasy I think its called. Yesterdays test where with the Fotasy and i believe these where as well because i had the metabones on the CV 35 1.7 when in New York.
p.6 #18 · Official: Voigtlander 15mm f/4.5 III E-mount
rscheffler wrote:
Very interesting, Guy.
FWIW, I also have this lens in M mount, but shoot it on the M240. I need to revisit my tests from last year but think my results are closer to Fred's. And from what I've seen it's possible this lens performs slightly better on Sony than Leica. I also have the previous version. In respect to across-frame sharpness I don't recall seeing much difference, but vIII has better distortion correction, and of course, no color shift.
p.6 #19 · Official: Voigtlander 15mm f/4.5 III E-mount
The last crop on bottom left with the street corner is a dead giveaway there is no smearing going on. I can see the cracks in the sidewalk. so there is no blurring at all.
p.6 #20 · Official: Voigtlander 15mm f/4.5 III E-mount
There is clearly quite a bit of astigmatism in the upper left corner and the lower left one isn't a very good target to judge it because the structures are mostly saggital
It would fill a current information void.
