[Digitalis]

I have a copy of the Voigtlander 20mm f/3.5 Color-Skopar in K mount (that lens was hard to find) the Pentax SMCP-FA 24mm f/2, the SMCP-K 24mm f/2.8 and I am looking for a copy of the Samyang 20mm f/1.8 ED AS UMC.

It's a shame I still don't have my optics bench up and running.

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Last edited by Digitalis; 11-26-2021 at 04:45 AM.

[repaap]

I have a copy of the Voigtlander 20mm f/3.5 Color-Skopar in K mount (that lens was hard to find) the Pentax SMCP-FA 24mm f/2, the SMCP-K 24mm f/2.8 and I am looking for a copy of the Samyang 20mm f/1.8 ED AS UMC.

It's a shame I still don't have my optics bench up and running.

I suppose that there are someone going for that kind of testing at some point. Doesn't voigtlander have moustash distortion? in addition of slow apeture which has to be even more stopped down? Not sure about samyang, some good things on crop bodies. There is ofcourse price difference in this comparison.

It would be interesting to see what is what, done properly. I'd bet that it is going to beat all of those lenses.

[texandrews]

For the tulips one, i was pretty close." can't remember the actual distance" maybe 0.3 to 0.5meter?

For the F2.4 one, i have push to the minimum focusing "switch to manual and put as 0.18 metre"

Very helpful! If you asked me about close focusing with a wide lens, my typical response would have been "meh". This lens is changing my mind---now I'll have to check some of my 645 lenses for wide open, close focusing.

[dneira29]

How is the AF? I have the DFA* 50 f1.4, how to you think the AF compares? Im debating getting this lens, if I dont win the raffle hahah

[biz-engineer]

I am looking for a copy of the Samyang 20mm f/1.8 ED AS UMC

Isn't the D-FA 21 ltd better optically, in your opinion?

[Digitalis]

Isn't the D-FA 21 ltd better optically, in your opinion?

Hard to be certain, I haven't got a copy of either lens yet (handmade silver flutes being as expensive as they are) so any differences I could imply would be speculative at best, I prefer to be quantitative and empirical. There is the possibility* that the lenses I plan to compare will posses optical/physical characteristics that might be comparatively superior for certain genres of photography.

One positive thing I will say about the Voigtländer Color-Skopar 20mm f/3.5 ASPH SLII - it is delightfully svelte. Though as someone mentioned above: field curvature and distortion are an optical shortcoming. I have a copy of the Zeiss Distagon T* 21mm f/2.8** in F mount and that lens is a brick and a half.


* though this depends heavily on the presence of any optical misalignment which tends to have a catastrophic effect on wide-angle lenses.
** the older F mount version, not the newer Milvus.