CV 35/1.4 SC vs late Summilux pre-asph 35/1.4

The Nokton seems to flare a lot for such modern lens. I've seen similar flare in examples of multicoated version, too.
 
The CV is sharp wide open, but seems less sharp at f4 than f1.4...
Color, bokeh and flare comparisons go clearly in favor of the old 'Lux...
Hmm?...
Didier
 
The CV is sharp wide open, but seems less sharp at f4 than f1.4... Color, bokeh and flare comparisons go clearly in favor of the old 'Lux... Hmm?...
The CV is sharper at f/1.4 and f/2 where the 'lux is smoother and shows some 'glow' at same apertures. Different beasts at fast apertures obviously. From f/2.8 onwards, differences look less obvious. Leica colors are brighter but sharpness, contrast and bokeh look very close. In black and white, flare aside, i see very little differences from f/2.8 to f/11 to a point where i could mistake one for the other. But my experience is limited to the R-D1 and i'm but a newbie with the CV that i acquired 3 days ago.
 
Honestly this looks like focus shift. To me it appears that the CV is on at 1.4 then starts to back focus with aperture closing down. It also appears that your Lux is front focussing when wide open, then shifting in when stopping down.

After a second look at the pictures, I must absolutely second Ray. It looks indeed more like a focus shift issue. Couldn't imagine a modern asph lens like the CV 35 Nokton to get so less sharper when stopping down, as well as the pre-asph 35 Lux, wide open, can not be that soft in the middle of the picture.

On both Epsons I had (R-D1) or still have (R-D1s), all Leica lenses I tried, did front focus at close up, if older (Summicron collapsible) or newer (35 Lux asph). The Nokton 40 did not, but I never checked if it starts to back focus after f=4.0 like the 35 Nokton obviously does on these pictures. Interesting, my Canon 50/1.2 as well as the Canon 35/2 do not front focus wide open, close up.

Once more, I come to the end, that one should let adjust all his lenses and all his M-bodies together, from the same person at the same time, to be absolutely shure about any focusing issues. I know from former professional Leica users that they did so. Once a year.

Didier
 
I was looking to buy this 35 nokton, in MC. But as i understand, its only useable wide open, and not working properly in everyday conditions in the daylight.. bummer! Is this Front focus issue stopped down, easy to (get) fixed?
 
That's what I thought, which is why I don't understand palec's last comment. It looks like flare is a much larger problem for the lux than it is for the CV. I'm curious because the CV seems to suffer from some interesting flare issues:

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Hexar RF, CV 35 1.4 SC, TriX
 
LCT, thanks for posting the shots -(I only just found the thread) and was considering the Nokton. Do you know if it was focus shift from f4 onwards in the opening shots. At f1.4 -2.8 it looks great, and then just treads water.
 
LCT, thanks for posting the shots -(I only just found the thread) and was considering the Nokton. Do you know if it was focus shift from f4 onwards in the opening shots...
Cannot answer sorry as i haven't noticed any focus shift with any of my (many) lenses before i did the tests above at short distance to do like everybody. I even did not know what focus shift could be one or two years ago to tell the truth. It is perhaps because i don't use charts and rulers to become demoralized and i don't shoot closeups with WA lenses so that at longer distances focus shift must be compensated with DoF presumably. Just a guess from my part but frankly i don't care to explain what is basically a non-issue for me. Sorry to be useless here but if you're not after the Leica 'glow' or the harsh contrast of some modern lenses you will hardly find out that good a little fast 35 at the price of the Nokton SC IMHO.
 
...if you're not after the Leica 'glow' or the harsh contrast of some modern lenses you will hardly find out that good a little fast 35 at the price of the Nokton SC IMHO.
Well said LCT :D
Seriously both little gems are really little and are a joy to use if focus tabs are your cup of tea.

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