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Voigtlander 75mm f/1.5 Nokton Review

  
 
Dave Sanders
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p.3 #1 · p.3 #1 · Voigtlander 75mm f/1.5 Nokton Review



Nice, that's a bevy of 75's. I'll be interested to see if that test comes to fruition and to see what the results are. We need an image thread for well-loved but imperfect M mount lenses...

genji wrote:
TBH, I haven't used the CV 75/2.5 much recently. It was relegated to reserve grade (or the minors, as Americans might say) once I got a great copy of the Summarit-M 75/2.5 from forum member DavidBM. But there's a plan for David and I to do a portrait distance test with my Leica for Phillip Reeve's 75/1.5 review and it wouldn't be too much trouble to do a couple of portrait pics with the 75/2.5 then.





Aug 13, 2019 at 11:11 PM
genji
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p.3 #2 · p.3 #2 · Voigtlander 75mm f/1.5 Nokton Review


As I mentioned in a previous post, I tested my copy of the CV 75/1.5 on an infinity scene with my Leica M10-P and found it has essentially a flat field. Using the Leica Visoflex 020 external EVF, I focused on the center of the scene (which was at the hard infinity stop) and took exposures at f/1.5, f2.0, and f/2.8.

I then moved the focus point left to the mid-zone and then as close to the left edge as possible, making another three exposures each time. Since, at each of these locations, the sharpest focus was also at the hard stop, there is no point showing images to demonstrate subtle changes in focus since there were none.

What I've done instead is shown the results for the three different apertures to illustrate how the resulting images sharpen as the lens is stopped down. I hope this is useful.












Aug 14, 2019 at 02:19 AM
DavidBM
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p.3 #3 · p.3 #3 · Voigtlander 75mm f/1.5 Nokton Review


genji wrote:
As I mentioned in a previous post, I tested my copy of the CV 75/1.5 on an infinity scene with my Leica M10-P and found it has essentially a flat field. Using the Leica Visoflex 020 external EVF, I focused on the center of the scene (which was at the hard infinity stop) and took exposures at f/1.5, f2.0, and f/2.8.

I then moved the focus point left to the mid-zone and then as close to the left edge as possible, making another three exposures each time. Since, at each of these locations, the sharpest focus was also at the
...Show more

Impressive!

The edge, though, is still midfield (the corner of course gives the outer field). While it doesnít matter in practice, it might be our fir the pixel peepers to know if FC shows up in the corners..



Aug 14, 2019 at 07:23 AM
genji
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p.3 #4 · p.3 #4 · Voigtlander 75mm f/1.5 Nokton Review


DavidBM wrote:
Impressive!

The edge, though, is still midfield (the corner of course gives the outer field). While it doesnít matter in practice, it might be our fir the pixel peepers to know if FC shows up in the corners..


Ah, excellent point! That should have been obvious to me given that Fred and the Phillip Reeve team always use a Dutch angle for their infinity test shots. Looking back at the city from a vantage point somewhere in Pyrmont would have made that framing possible.

Actually, all I needed to do was pan a little to the right and I would have had the crane in the upper left corner!



Aug 14, 2019 at 07:59 AM
GMPhotography
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p.3 #5 · p.3 #5 · Voigtlander 75mm f/1.5 Nokton Review


I'm out testing right now


Aug 14, 2019 at 08:34 AM
LBJ2
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p.3 #6 · p.3 #6 · Voigtlander 75mm f/1.5 Nokton Review


What is the benefit of the Dutch angle for corner test shots? I noticed Fred recommended the same in his decentering test at or near infinity. I apply as prescribed, but why the Dutch angle ?


Aug 14, 2019 at 08:34 AM
Steve Spencer
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p.3 #7 · p.3 #7 · Voigtlander 75mm f/1.5 Nokton Review


LBJ2 wrote:
What is the benefit of the Dutch angle for corner test shots? I noticed Fred recommended the same in his decentering test at or near infinity. I apply as prescribed, but why the Dutch angle ?


I think the benefit it just that you have something in the corners, which is the farthest from the center to examine the performance of the lens at the extreme of the image circle.



Aug 14, 2019 at 08:45 AM
Steve Spencer
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p.3 #8 · p.3 #8 · Voigtlander 75mm f/1.5 Nokton Review


genji wrote:
Ah, excellent point! That should have been obvious to me given that Fred and the Phillip Reeve team always use a Dutch angle for their infinity test shots. Looking back at the city from a vantage point somewhere in Pyrmont would have made that framing possible.

Actually, all I needed to do was pan a little to the right and I would have had the crane in the upper left corner!


Given that the wide edge is 16mm from the centre, and the corner is just 21.6mm from the center, the test you did is still very informative. We don't know the performance in that last 5mm or so into the corner, but I think that is exactly the part of an image in evaluating a lens that is often overemphasized. In a huge percentage of my shots, there isn't anything meaningful in that area. I see it as being a bit beyond mid-field, which I think of as about 12mm from the centre, and a very important part of the image.



Aug 14, 2019 at 08:49 AM
GMPhotography
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p.3 #9 · p.3 #9 · Voigtlander 75mm f/1.5 Nokton Review


I'm shooting Big Bronco right now. No difference in focus from center to extreme corner. Ziltch


Aug 14, 2019 at 08:58 AM
EltonTeng
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p.3 #10 · p.3 #10 · Voigtlander 75mm f/1.5 Nokton Review


Thank you for the tests!

Looks like I can let go of my 90/2 ASPH and have a relatively low cost replacement!



Aug 14, 2019 at 08:58 AM
 


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GMPhotography
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p.3 #11 · p.3 #11 · Voigtlander 75mm f/1.5 Nokton Review


Lens reminds me of a Summilux

Little tough at 1.5 to focus. I can but I can see where it may challenge someone. F2 is perfect

One thing I noticed immediately is the focus falloff is really fast after the focused spot. Said another way it's balls to the walls on bokeh



Aug 14, 2019 at 09:04 AM
GMPhotography
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p.3 #12 · p.3 #12 · Voigtlander 75mm f/1.5 Nokton Review


I'm seeing CA wide open but it looks like 2.8 it goes away. Have to check on computer. This would be normal for a lens like this. Remember this word Summilux



Aug 14, 2019 at 09:07 AM
GMPhotography
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p.3 #13 · p.3 #13 · Voigtlander 75mm f/1.5 Nokton Review


Early morning. Sun just popped. Both Wide open and at 1.5 . Daylight WB




  ILCE-7RM3    ---- lens    1/3200s    100 ISO    0.0 EV  






  ILCE-7RM3    ---- lens    1/4000s    100 ISO    0.0 EV  




Aug 14, 2019 at 10:17 AM
GMPhotography
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p.3 #14 · p.3 #14 · Voigtlander 75mm f/1.5 Nokton Review


Just to WB this a little more normal. I would do this




  ILCE-7RM3    ---- lens    1/3200s    100 ISO    0.0 EV  




Aug 14, 2019 at 10:19 AM
GMPhotography
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p.3 #15 · p.3 #15 · Voigtlander 75mm f/1.5 Nokton Review


So couple quick thoughts I see CA until 2.8 than goes away on its own. I could probably eliminate that sooner in processing. As I thought if you want pixel peeping corners go to F5.6 but F4 is quite good. Really reminds me of a Leica Summilux in its look.


Aug 14, 2019 at 10:22 AM
GMPhotography
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p.3 #16 · p.3 #16 · Voigtlander 75mm f/1.5 Nokton Review


Okay infinity test or lets say 300 yard test

At F5.6




  ILCE-7RM3    ---- lens    1/100s    100 ISO    0.0 EV  



















Aug 14, 2019 at 10:25 AM
GMPhotography
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p.3 #17 · p.3 #17 · Voigtlander 75mm f/1.5 Nokton Review


On center and I will post this but here is my thought you want that nice glow with people look go 1.5 but if you want sharp on center F2 is the answer and that's just ducky for me. I get two looks in one lens

I will get back to this . Need to go to hospital and do a breathing test. But my news yesterday was pretty positive.



Aug 14, 2019 at 10:29 AM
GMPhotography
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p.3 #18 · p.3 #18 · Voigtlander 75mm f/1.5 Nokton Review


Wide open




  ILCE-7RM3    ---- lens    1/5000s    100 ISO    0.0 EV  









Aug 14, 2019 at 10:34 AM
nehemiahphoto
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p.3 #19 · p.3 #19 · Voigtlander 75mm f/1.5 Nokton Review


GMPhotography wrote:
I'm seeing CA wide open but it looks like 2.8 it goes away. Have to check on computer. This would be normal for a lens like this. Remember this word Summilux


Aside from the FL and aperture, I donít see much of a draw similarity with the Lux 75. The CV 75 1.5 has smoother bokeh, smoother transitions, is sharper wide open with less SA, sharper across more of the frame, has higher micro contrast, much better flare resistance, CV sunstars and better CA correction, especially of Lateral CA. The Leica has has a warmer palate as well it seems.

I like this lens and Iíll pick one up and shoot it against my Lux, but I see a well corrected modern compact lens (nice CV!) but not a lot of character or Lux-ness.



Aug 14, 2019 at 10:47 AM
GMPhotography
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p.3 #20 · p.3 #20 · Voigtlander 75mm f/1.5 Nokton Review


I should have said a modern Lux. Yes it's sharper and better corrected in my mind though it's the immediate falloff from sharp to OOF which reminds me of a Lux


Aug 14, 2019 at 11:16 AM
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