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difference between two lenses


madaneerg

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Hi

 

the 1.2 is out of production the type II when it appears may have a different signature

the 1.4 is available in SC and MC

the 1,4 is a clone of the type I cron (35mm)

the 1.2 will vignette a bit more

aside from size, weight, cost, speed

 

You might like the 40mm CV f1.4 more?

 

Noel

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Hi

 

The CVs and the Leicas are different lenses, with different photographic signatures.

 

There are 'two' Leicas in f/1.4 the non asph and the asph.

 

The non asph 62-94 'character' from 1.4 to 5.6 normal 5.6 to 16, needs a 12526 hood

Three asph's sub types '89 to date high contrast sterile, might get some flare shooting into Profiles @/1.4, nothing like as bad as pre asph.

 

The pre asph is 'cheap', small and light.

 

The CV are different from the Leica lenses and from each other, the SC and MC will have different signatures, they may flare more then the Leica Asph, and the /1.4 has some distorsion. The 1.2 is gigantic, the 1.4 small

 

The CV 40mm f/1.4 again different, no distorsion to speak of, little larger then 35mm /1.4.

 

Looking at web shots to see the difference is 'abstract'.

 

Noel

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My CV 35/1.4 SC flares a lot and has focus shift at f/2.8 and slower apertures. Similar fingerprint as the pre-aspheric Summilux 35/1.4 w/o the 'glow' (halo around highlights) of the latter.

The CV 35/1.2 is said to be better as far as flare and focus shift but i have no experience with it.

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My CV 35/1.4 SC flares a lot and has focus shift at f/2.8 and slower apertures. Similar fingerprint as the pre-aspheric Summilux 35/1.4 w/o the 'glow' (halo around highlights) of the latter.

The CV 35/1.2 is said to be better as far as flare and focus shift but i have no experience with it.

Hi Lct

 

You detect this focus shift with a film camera?

 

Noel

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My CV 35/1.4 had focus shift and back-focussed visibly on my M8 so I encouraged it to 'seek new opportunities with another owner'.

 

My CV 35/1.2 exhibits no focus shift or back-focus, is easy to focus wide open for such a fast lens, and has a lovely signature. Yes, it's comparatively large and heavy for a 35 mm rangefinder lens but not insufferably so imo.:)

 

Pete.

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Similar fingerprint as the pre-aspheric Summilux 35/1.4 w/o the 'glow' (halo around highlights) of the latter.

I think it's a common misconception among people new to Leica to confuse some halos around highlights with the proverbial 'Leica glow'. The former just is an unwanted aberration which occurs primarily in older high-speed lenses at full aperture. The latter is the special balance between macro contrast and micro contrast that's intrinsic to many Leica lenses (and pretty much different from typical Zeiss lenses); it has nothing to do with halos.

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So I call glow what it is to me i. e. typical halos around highlights if you don't mind.

As long as you say just glow and not The Leica Glow™, I don't mind. :D

 

Seriously—the glow around highlights at full aperture of less-than-near-perfect lenses is a common phenomenon with all brands of lenses, not just Leica. So that isn't what's meant be 'the Leica glow' specifically. To the contrary—the Leica glow will start shining at medium apertures, when fine detail starts to stand out in a very special ... umm, 'glowing' way that's typical for Leica lenses and that other lenses for 35-mm-format cameras mostly cannot match (medium-format and large-format cameras usually can—but that's a different kettle of fish).

 

Today, with greatly improved computer-aided design and computer-aided manufacturing methods, the significance of tke 'Leica glow' has ceased to a degree, as other lens manufacturers can also make real fine lenses too these days, and the lens designers are less restricted by contradicting requirements to balance as they used to be, thanks to modern high-performance glass types, CAD/CAM methods, and cheap aspheres. Today, a high-end lens can have very high contrast and very high resolution at the same time, even at wide apertures.

 

Also, most people theses days aren't used to see really well-crafted prints anymore; instead, they will look a cheap, small-format drugstore prints or at no prints at all but at computer screens. So no wonder people will confuse a mundane aberration for what once was known as 'the Leica glow'—they simply don't know any better.

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As long as you say just glow and not The Leica Glow™, I don't mind. :D

 

Seriously—the glow around highlights at full aperture of less-than-near-perfect lenses is a common phenomenon with all brands of lenses, not just Leica. So that isn't what's meant be 'the Leica glow' specifically. To the contrary—the Leica glow will start shining at medium apertures, when fine detail starts to stand out in a very special ... umm, 'glowing' way that's typical for Leica lenses and that other lenses for 35-mm-format cameras mostly cannot match (medium-format and large-format cameras usually can—but that's a different kettle of fish).

 

Today, with greatly improved computer-aided design and computer-aided manufacturing methods, the significance of tke 'Leica glow' has ceased to a degree, as other lens manufacturers can also make real fine lenses too these days, and the lens designers are less restricted by contradicting requirements to balance as they used to be, thanks to modern high-performance glass types, CAD/CAM methods, and cheap aspheres. Today, a high-end lens can have very high contrast and very high resolution at the same time, even at wide apertures.

 

Also, most people theses days aren't used to see really well-crafted prints anymore; instead, they will look a cheap, small-format drugstore prints or at no prints at all but at computer screens. So no wonder people will confuse a mundane aberration for what once was known as 'the Leica glow'—they simply don't know any better.

Hi O1af

 

If the 35mm preasph lux does not glow which Leica lenses would you recommend?

 

Noel

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I didn't say it doesn't.

 

 

 

For example, the pre-asph Summilux 35 mm at apertures between, say, f/2.8 – f/8.

@/5.6

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