Summilux 28mm月底發佈

MIG

Assume 21,24,28lux are at similar price tag, and you are going to get only one of those, which one would you guys get? And why?

(10 marks)

Toscaninifans

好大支...

M3fans

28/1.4A corner vignetting could be a major concern for many. We may not be able to notice the problem looking at the published pictures as they are corrected while some are heavily processed.
When the 28/2A was launched, many users complainted at its 2 stops vignetting (at max aperture of f2 on 35mm full frame).
For 28/1.4A at f1.4, the "dark corners" are at 3.5 stops (on 35mm full frame) and 2 stops even on APSC size sensors (like M8).
Some may like this as an effect at certain situations but many won't. The vignetting will be very noticable at f1.4 unless corrected by camera built-in lens profile or pp afterwards.

頭文字L

Gone were the days when E49 28mm elmarit-M with oversized front lens elements to mitigate the vignettes issue. Max light loss is 1.9 stops.... But now, 3.5 stops seems a challenge to post processing software.

M3fans

頭文字L 發表於 2015-5-23 13:33
Gone were the days when E49 28mm elmarit-M with oversized front lens elements to mitigate the vignet ...

When 28/1.4A stop down to f2.8, it is actually very close and seems slightly better than the E49 28mm Elmarit (version 3). The 3.5 stops of vignetting is at f1.4

頭文字L

M3fans 發表於 2015-5-23 14:15
When 28/1.4A stop down to f2.8, it is actually very close and seems slightly better than the E49 2 ...

Consider MTF wise, 28mm summicron is still the lens to beat amount the current three 28mm in Leica stable.

Honrts

有理由相信不久將來Leica會停產支Summicron 28mm，唔係支Summilux 28mm點賣。

頭文字L

From rapid drop of MTF values near format edges, I guess the image circle of 28 lux is not as large as the summicron. So as from the vignette diagram ... Moreover, separate of T and S resolution lines may implies chromatic errors may easily occurs ?

頭文字L

28 Lux .... M8 / 8.2 因物

M3fans

頭文字L 發表於 2015-5-30 12:34
28 Lux .... M8 / 8.2 因物

haha, thinking about this lens all the time? Buy one la
And seriously, one should reconsider as the technical data was recently modified, seems Leica noticed some earlier mistakes.
Now, the MTF charts are replaced with much better ones.
Data now shows more distortion but the vignetting chart still shows the same light lost and still has f2 instead of f1.4
If this set of data is real and final, 28/1.4 should be better than or at least equal to 28/2 in the center up to the shorter sides of the frame, ie 28/2 only has advantage at the far corners and longer sides of the frame. Also, of course the weight and size.
These mistakes all over the 1st published technical page is just plain lousy!

頭文字L

M3fans 發表於 2015-5-30 15:26
haha, thinking about this lens all the time? Buy one la
And seriously, one should reconsider as th ...

First set of MTF has less distortion.... Stainless steel version has 1st data sheet ? Black version got redesign?