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35MM SUMILUX


YKERVREN

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Dear all

I got few remarks that the 35MM f:1,4 Sumilux pre aspheric is of better quality compared with the very last release aspherical ?

Could you please let me know the reason in the back of this statement ?

Is Leica going to correct the existing 35 Sumilux to correct the situation ?

Thanks and regards

Yves:confused:

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Well, first "Better" needs to be defined.

 

According to some on this forum and to some reviews the new Summilux-M 35 ASPH (Version 2) is the best Leica lens around.

 

But if it´s the best for you... Well it depends on what you value and if you are shooting film or digital.

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Well, if you you define best as MTF curves and specifications, the current lens is without doubt the best 35 mm Leica ever built. If it is an artistic value judgement, anything goes and I could make a case for an Old Delft Alfinar being the "best" .

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Hi Yves

 

That is like playing football with a Frelon nest for the balloon.

 

The pre asph was a statement lens from '62 designed to put Nikon and Canon in their (2nd) place compared with Leitz, it is small, light, and has an interesting signature, especial wide open.

 

The Aspherical, and then type I and II Asph, perform much better, in the range f/1.4 to /5.6.

 

If you need speed some of my friends use the CV f/1.2, on film and digital, some the CV /1.4 on digital.

 

I use CV f/2.5 and pre asph Leica, I dont like big lenses.

 

But before you buy any of these you need to try the ergonomics of the focus mechanisms and your hands.

 

Noel

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Dear all

I got few remarks that the 35MM f:1,4 Sumilux pre aspheric is of better quality compared with the very last release aspherical ?

Could you please let me know the reason in the back of this statement ?

Is Leica going to correct the existing 35 Sumilux to correct the situation ?

Thanks and regards

Yves:confused:

 

The reason could be a bit of confusion of various voices... :o... indeed, Leica has JUST made a new Summilux 35 (some months ago - above referred to by Noel as "type II asph") and this is the lens one can buy now; the previous asph was many times criticized for a certain "vagueness" in focusing : it was said to show a significant focus shift (to be honest, the issue sprout out with the advent of digital Leicas and the feast of "100% pixel size") : but is hard to say that the "old" un-asph Summilux was , in general, "better", even if, for myself, I still have and like to use it.

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The problem with the original pre-aspheric lens (1961–1995) was not only large amounts of astigmatism and coma. Ordinary diffuse highlights did also give rise to large swaths of veiling glare that spread across much of the image. You had to stop it down to 4.0 to have decent results, and 8.0 was better.

 

The first version ASPH (1994–2010) had a clear issue with focus shift when the lens was stopped down. It was spot on at 1.4, but then you'd better skip all f-stops wider than 5.6, where an expanding field of view took care of the problems. Luigi is right that this was in fact just a minor issue as long as we used film, not necessarily because of pixel-peeping but because the depth of the film emulsion hid some of it. The current v.2 ASPH, which I own, is a superlens that can be used without hesitation at any f-stop wider than f:11 (where diffraction starts to visibly degrade the image of ANY well-corrected lens), and the fingerprint is just beautiful.

 

But the reason why I do own it at all is probably that I put in a firm order for it even before the old version was even officially discontinued!

 

The old still slightly aspherical old man

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I agree the term better needs to be qualified.

 

I personally like the look I get from my 35 1.4 Summilux pre ASPH.

 

It's got the glow, or veiling flare which ever you prefer. And stopped down it is really sharp.

 

 

675969962_7te3W-L-2.jpg

 

35 1.4 Summilux @ 1.4 on Leica M3 on XP2.

 

 

1001754436_oVQDz-L.jpg

 

35 1.4 Summilux @1.4 on Leica MP

 

 

1064534869_Cibte-L.jpg

 

35 Summilux 1.4 @ F4 on Leica M7

 

Gregory

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I just recently decided to forego the newest asph2 and stick with my asph1. Instead I decided to use the money saved from the upgrade to re-re-buy the pre-asph.

Yes, my asph 1 focus shifts between f2 and f4 and yes I know how badly the pre-asph flares. I guess my concept of 'better' is to have two different signatures than one perfect asph 2....for now anyway:p

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I think having a differnt signature look is totally reasonable.

From my research, I would love to get the orignial hand ground first version of the 35 1.4 Summilux ASPH . The new one not so much.

 

 

Gregory

 

How is the 'Aspherical's signature different from asph 1? I have not heard much about it's signature, other than no focus shift.

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Sorry bad writing, I ment the difference in signature between the the ASPH and my lowley non ASPH 35 1.4 Summilux copy:p.

 

I am mostly interested in the first 35 Summilux 1.4 ASPH version because I understand it had hand ground ASPH elements like my Nikkor 28 1.4 AF-D and my Nikkor 58 1.2 AIS.

 

I got my 35 1.4 Summilux because it has what I though of was the classic leica look. And being my first Leica lens I wanted to start there.

 

1158824988_J9fq8-L.jpg

 

 

767404124_VT7Sm-L.jpg

 

 

 

 

764074240_Sn2Zs-L.jpg

 

 

 

 

I am not saying there "better" but I get a kick out of owning/using a lens made by hand and not molded.

Not that there is anything wrong with how they make them now.

 

 

 

I just think there is somthing special about lenses polished by hand.

I saw a telivesion show and even the "best telescopes" made where hand polished. The irregular motion made by the human hand is not easlliy reproduced by a machine.

 

 

Gregory

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Just to sort it all out properly. There are by now THREE aspherical 35mm Summilux lenses.

 

(1) Summilux Aspherical. This was the first "testing the waters" version, launched in 1990. It had an optical layout, revolutionary at that time, that was very similar to that of the later two versions. It had however two aspherical surfaces, one in the front and one in the rea half. These (quite large) surfaces were ground by a semi-manual process that was very slow and laborious, identical (I'm told) to that used for the first Noctilux 1:1.2 in 1966. The venture was economically suicidal, and Leica announced from the outset that only 2,000 lenses would be produced. This was a clear case of optical territory-pissing. The lens is now a sought-after collectors' item.

 

(2) Summilux ASPH (v.1). 1994–2010. The commercially successful version with one aspherical surface (the first after the iris diaphragm) made by hot die-pressing. This lens was a wonderlens with film, but digital revealed problems with focus shift on stopping down. Can be instantly recognised by its snap-on, rectangular part-plastic lens hood.

 

(3) Summilux ASPH (v.2). 2010 and current. One aspherical surface as above, but re-computed and with the entire rear half of the lens designed as a "floating group". Screw-on all metal hood.

 

And as has already been pointed out, the original 1961–1995 non-aspherical double-Gauss type version, which was flarey, astigmatic and comatose ... A very compact, near-pancake lens with a round metal snap-on hood which took Series VII filters.

 

The anastigmatic old man

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