p.1 #2 · Which Voigtländer 28mm m-mount lens shows least corner smearing on e-mount?
In my opinion 28/2.8 Color-Skopar adapts pretty well but it's still necessary to stop down to f8 for best corner-to-corner results (extreme corners improve until f8). I've had all of them in VM / LTM and only used them adapted. 28/2.8 Type II is also the smallest and lightest of the CV options.
From the current VM lineup I've only kept the 28/2.8 VM, but it's in part because 28/1.5 and 28/2 APO were released as native E-mount options and I got both of those. I still found 28/2.8 to be the most appealing option when adapting. It does have relatively high vignetting though.
p.1 #3 · Which Voigtländer 28mm m-mount lens shows least corner smearing on e-mount?
Knut. wrote:
With the
90mm/f4 Apo Lanthar (upcoming)
50mm/f3.5 Apo Lanthar
There is only an excellent 28mm missing to have a very light weight solution for e-mount as well.
Unfortunately the 28mm is the achilles heel: Which one of the Voigtländer m-mount lenses adapts best to e-mount?
Unfortunately, there really isn't a perfect option. As Juha mentioned, the Voigtlander 28mm f/2.8 Color-Skopar is probably the least compromised of the bunch when adapted to Sony's thicker sensor stack, but even it falls well short of an ideal match.
I think compatibility would be better if Cosina were to release an updated version of the 28mm f/3.5 Color-Skopar. Its slower maximum aperture would allow it to work better with thicker stacks.
p.1 #4 · Which Voigtländer 28mm m-mount lens shows least corner smearing on e-mount?
I think a new 28/3.5 VM is not very likely since Cosina already has 4 different 28mm VM lenses in production (since 28/2 Ultron is also making a comeback) and since 28/2.8 Type II is already so light and small.
On the other hand I think a small new pancake style 28/2.x to go along with Septon 40/2 in E and Z is highly likely so that could become the best small/light option for E-mount in the future.
I recently got the Color-Skopar 28/2.8 SLIIN in Canon EF-mount (adapting to Sony with Sigma MC-11). I think it's not as good as 28/2.8 VM on Sony overall (esp. at infinity) but pretty nice in the close range (that version focuses to 0.22m). It's not small and light when adapted though.
p.1 #5 · Which Voigtländer 28mm m-mount lens shows least corner smearing on e-mount?
You could try a PCX front filter with one of the 28s. Then it'd be usable on both with some easy additions/subtractions. I'll admit, I felt like it wasn't a great compromise when I tried it with the Elmarit-M 24, solving one problem while creating others, but it worked for some lenses from the reports in the old thread here.
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p.1 #6 · Which Voigtländer 28mm m-mount lens shows least corner smearing on e-mount?
Knut. wrote:
With the
90mm/f4 Apo Lanthar (upcoming)
50mm/f3.5 Apo Lanthar
There is only an excellent 28mm missing to have a very light weight solution for e-mount as well.
Unfortunately the 28mm is the achilles heel: Which one of the Voigtländer m-mount lenses adapts best to e-mount?
I would add to your list the VM 75 f/2.8 APO Skopar, and the VM 21 f/3.5, 15 f/4.5, 12 f/5.6 and 10 f/5.6, although they don't have the optical perfection of the 3 small APO lenses, are small and all perform as well or almost as well on mirrorless as they do on Leica M cameras.
Notably missing is a 28mm and 35mm that is small and peforms well on mirrorless cameras. So, you have a choice to make with E mount either go with a larger lens optimized for the mirrorless mount (the 28 f/2 APO Lanthar and the 35 f/2 APO Lanthar both have fantastic performance) or a smaller lens that performs less than optimally on mirrorless (the VM 28 f/2.8 and VM 35 f/3.5 are both very tiny but the performance of both suffer quite a bit on mirrorless).
I don't see this situation as likely to change any time soon, but you never know with Cosina. Even with four VM 28mm lenses and seven VM 35mm lenses, they might make a 28mm or 35mm f/3.5 APO Lanthar that works well on mirrorless as well. I wouldn't hold my breath for such lenses, but we can always hope.
p.1 #7 · Which Voigtländer 28mm m-mount lens shows least corner smearing on e-mount?
The original 28/1.9 does pretty well, I bought it originally to use on film with M6ttl and M3, and used it happily on the original Sony A7 when I had it. Continue to use it on Fuji even now. It was highly regarded in its day, later beaten by the first Leica aspheric 28mm and no doubt by later Voigtlanders, but I like it.
p.1 #8 · Which Voigtländer 28mm m-mount lens shows least corner smearing on e-mount?
I have the original 28/1.9 LTM, 28/3.5 LTM and also had the first gen 28/2 VM but all of them are weaker on stopped down corner to corner sharpness (on Sony) than the current 28/2.8 VM. I enjoyed the 28/1.9 a lot on my NEX-6 back in the old days though.
I think the current 28/2.8 works quite well on Sony if one is OK with stopping down to f8 for infinity shots. I would usually stop down with native lenses for those type of shots too, but preferably no further than f5.6. With my native Nokton 28/1.5 E version I stop down to f5.6 and with APO-Lanthar to f4. In bokeh / wide open shots I never see any problems with the 28/2.8.
I believe corner-to-corner performance at wider apertures on 28/2.8 will be better on a native digital M but it doesn't really mean that it is problematic in real life use on E. I enjoy shooting with it on my A7CII and can ram it to hard infinity for long distance shots with the right adapters which can't be done with the native E-mount 28mm lenses (since those have some buffer allowing focusing beyond infinity). It works well as a small adapted option.
I also have various other small rangefinder lenses at 28mm (4 from MS-Optics, Minolta M-Rokkor, 2 versions of Avenon 28/3.5). None are better than the 28/2.8 VM in terms of corner-to-corner sharpness on Sony but they have other interesting character traits.
p.1 #9 · Which Voigtländer 28mm m-mount lens shows least corner smearing on e-mount?
Juha, your post above is helpful because I'm trying to fit out my A7R5 for every-day-carry without giant (heavy, scary) glass. I posted in the Sony forum yesterday to ask which 21mm f3.5 - Cosina or Voigtlander (fares better with the Sony sensor. 21mm makes the final winner useful on my XPro-2, too. I love the quality of the Sony files and the features of the body, but the XP2 just feels better going out the door. (40mm field of view and I don't get along and I used an M2 with a Summicron for 25 years back in the day.)
If Cosina's current 28mm f2.8 is better on Sony than either of the 21mm's I might give up the benefit of use on both bodies to have a good solution for the Sony.
p.1 #11 · Which Voigtländer 28mm m-mount lens shows least corner smearing on e-mount?
Actually, the best solution would be, if Cosina could offer compact versions of the following three lenses in native e-mount:
28/2.8 (or 28/3.5)
50/3.5 Apo Lanthar
90/4 Apo Lanthar
Keeping my fingers crossed, do not know how realistic these expectations are.
p.1 #12 · Which Voigtländer 28mm m-mount lens shows least corner smearing on e-mount?
Juha Kannisto wrote:
I think a new 28/3.5 VM is not very likely since Cosina already has 4 different 28mm VM lenses in production (since 28/2 Ultron is also making a comeback) and since 28/2.8 Type II is already so light and small.
On the other hand I think a small new pancake style 28/2.x to go along with Septon 40/2 in E and Z is highly likely so that could become the best small/light option for E-mount in the future.
I recently got the Color-Skopar 28/2.8 SLIIN in Canon EF-mount (adapting to Sony with Sigma MC-11). I think it's not as good as 28/2.8 VM on Sony overall (esp. at infinity) but pretty nice in the close range (that version focuses to 0.22m). It's not small and light when adapted though....Show more →
I agree it's highly unlikely that Cosina would introduce a 28mm f/3.5 Color-Skopar, especially considering how compact their current 28mm f/2.8 Color-Skopar is and how well it performs. But, if they ever surprised us with a slower f/3.5 design, it could potentially offer greater flexibility to varying sensor stack thicknesses, much like their excellent 21mm f/3.5 Color-Skopar does today.
