Ultron 35mm f2 Aspherical vs Summicron 35mm f2 ASPH

Really? It's not out of the ordinary. Someone bought a new lens, it arrived with some kind of glitch, and they post in the one forum where others also use the lens to compare notes.

Problems happen sometimes with new lenses. That goes for Leica ones too. You should see the Leica dedicated forum.

yes people start a thread and not invade a thread dedicated to comparison with other lens... im sure its not coincidence-i know to recognize crisis management when i see it...
 
two guys with extremely low post count report issues... sounds like a leica marketing department decided to kill the competition....


Leica undercover spy..? :)
Actually I'm struggling for finding one 35mm for everything. Leica lens have their reputation so I've been digging older (affordable) ones.

Here are some modest pictures I made with the Ultron, Summicron v2 and Summilux pre-asph V2.
As I told above there was a slight misfocusing issue so I kept in the f8-f16 area.
Focused with the range finder on tripod at f11 (close distance but misfocusing shouldn't be sooo dramatic)
All from raw with same White balance value in Photoshop for export. No further treatment.

Summicron:

Ultron:

Summilux:


Summicron and Ultron at same focusing distance. The Ultron seems to have a slightly narrower angle.

Summilux at about 15cm further (1m min focusing distance :bang:)

To my eyes the Summilux is so soft that he can't be compared to the other ones for "all-rounder" lens.
 
At f8 on tripod:

Summicron:


Ultron:


"sharpness" may not be the ultimate advantage for a lens but once again, the ultron is sharper.
It's f8 but you may notice some purple fringing on the ultron (on the cars for exemple)
 
Now I'm waiting to see how the Ultron performs on portraits for example. I'm not a very talented photographer so it important to me that the lens helps a bit by adding some "wow effect".
The Summilux is unbeatable on this points but difficult to use in 2019's everyday life.
The older Summicron has been a good compromise with good sharpness when needed and some character when needed. The ergonomics and lens cap are superior to the Ultron IMO. So, I'm excited to see how the Ultron performs in the wide open area and at the end wich lens I'm going to take for MY next travel.
 
Sorry for the boring shots but I like to take pictures at home! It's the place I know the best so I see how faithful pictures are to my vision of the reality..!

on tripod, F2, focused on the middle of the frame (you can also see the Ultron's misfocusing)

Summicron:

Summilux:

Ultron:
 
on tripod, F8, focused on the middle of the frame (you can still see the Ultron's misfocusing)

Summicron:


Summilux:

Ultron:
 
on tripod, F2, focused on the middle of the frame (you can also see the Ultron's misfocusing)

I see very little difference between the lenses. Looks like the Ultron image was taken at a different angle too.

> focused on the middle of the frame

Can you be more specific?
 
Once again, the Ultron is more faithful to what I see.
On these pictures, the Summicron is slightly softer and Summilux even softer but I prefer the more "dreamy" out of focus area with these ones.
 
I see very little difference between the lenses. Looks like the Ultron image was taken at a different angle too.

> focused on the middle of the frame

Can you be more specific?

this point:


Actually I put the camera in a heavy vice so it may have moved of a few millimeters by changing the lenses but it's not very critical.
 
I see very little difference between the lenses. Looks like the Ultron image was taken at a different angle too.

> focused on the middle of the frame

Can you be more specific?

Yes, you're right, it's a bit different and not only a few millimeters! It seems to be more like 5-10cm.
Anyway, the difference is not that big given the distance and the focus point with range finder was definitely the same.

Putting the misfocusing issue aside, I guess it can give an idea of the lense's personality, how they behave.
 
now the lens is back to the seller and I should receive a new one this week so I have to wait a few days before testing it again more "seriously".
 
Different framing with the Ultron aside (center point is off and its tilted - look at the wall on the right edge of the frame), from the results you posted I'd say your Summicron is front focusing.
Hopefully you's satisfied with your second Ultron copy.

32513957007_ef19a21a02_o.png


The actual image centers are these:
46732622244_97054c198a_o.png
 
@nutmeg: I am interested in this lens and so have been looking at the initial pictures you and jonmanjiro and others have posted with gratitude. One thing though.

At f:8 most 35mm lenses produce similar -- almost indistinguishable -- results. What I mean by that is that coverage issues, mechanical vignetting, focus problems, chromatic and other aberrations that may be inherent to the lens design, and decentering, which might pertain to your specific example of a lens, are all improved considerably by stopping down a lens that much. So showing a set of photos at f:8 is not likely to demonstrate anything to distinguish one lens from another, except degree of linear distortion and color cast.

At the risk of sounding greedy, I'd ask for some more snaps wide open or one stop down.

Many thanks for your posting.

[Edit: Ah, I see now that you have done. Many thanks.]
 
On these last shost on the balcony at the extreme right I see the most distortion (barrel), quite a lot actually, on the shot with the Ultron.

There also is a lot of difference in color, but that aspect is unimportant for me.

Erik.
 
Sorry for the lazyness of my pictures posted above.

Anyway, I guess shots taken at f8 and focused on infinity are something one may work with.
If you‘re looking for contrast or sharpness over the frame it may be not „enough“ for some but may give an idea to others. And even if the differences become smaller, there are still some.. Just look at the Summilux!

F2 was difficult to shot witout EVF because of the focusing problem but I‘ll try as soon as I‘ll receive the lens.

I have the same shot from the roof tops taken from my balcony at f2..f16/infinity focus I could post. But here again, the summilux at F2 for example is a killer for portraits and useless for landscapes (unlike you want to give a kind of effect, but how often would you use this?)

Actually I believe in the Ultron‘s strenght, otherwise I would have asked for my money back and not a new copy ��

Let‘s how it performs after say, 6 months of use, in many situations.
 
at f2 and f4 the center is sharper with the Summicron but edges and corners are more blurry. And even very blurry at f2.
Putple fringing is important at f2 with the Ultron but not so at f4.
 
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