Flektogon 4/20,= happy man :D

[Orio]

If you have read my past messages, you will remember that I was a bit unhappy with my copies of Flek 4/20, not because of the IQ which is excellent, but because of the sloppy and partly not working mechanical parts.

Well, a few days ago I have noticed a Flek 4/20 for sale at a German seller, on "buy it now" for only 115 Euros.
I could not believe my eyes. This is a lens that usually goes around 200 when sold with a "buy it now". And I could even less believe them when the description reported it as excellent condition.

I wasn't planning any purchase but I couldn't let this one go, it was just what I was expecting for months: a perfect 4/20 at a bargain price.
Remembering how I lost great bargains for hesitating too much, I immediately clicked the "buy it now" button.

The lens has arrived today and the description was perfect. Only a very few dust specks inside, as described. Mechanically perfect. Optically perfect.
For 115 Euros.
Wow.

I immediately made a test pic to verify the state of the lens. For me this means to verify possible damage problems with the distortion, which for me is more important than CA or sharpness for a superwide lens.
Happily there was no problem at all, and the lens is just like a Flek 4/20 should be: perfect.
Don't believe me? Look at the sample:



The camera was hand-held and I didn't have a bubble level with me, so take this into account.
Look at the right wall lines. They seem to be drawed on a drawing table with an instrument. Amazing isn't it?
Don't forget it's a 20mm lens!
On a full frame camera!
The control of distortion is just as perfect as a 20mm lens can get. Damn close to the result of a good 50mm lens.

And it's perfect almost all over the frame. Only the building at left shows a slight slant, which is in most part due to the fact that it's completely off-axis compared to the POV of the camera. And also, to the fact that the building was obviously build smaller on the top than on the bottom (which is something that you could verify with your eyes if you were here).

I swear there is NO Photoshop or whatever other line correction on this image!

And I have to remark, bokeh is not all that bad either for being a superwide (although you can not appreciate it from this resize)

So do you understand why I always recommend the Flek 4/20 to anyone who asks my advice on a superwide?
Where else can you get such a quality 20mm lens for 115 Euros?
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[Orio]

I have to add another comment about the quality of the Flek 4/20: it seems to be one of my very few lenses to suffer little or next to nothing from the negative effect of diffraction. I can stop it down to f/22 and it maintains a more than decent readability of the details even in the busy areas of the image.
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[Ballu]

frankly.. just amazing...
Which camera is used for this picture...

[Orio]

[Katastrofo]

Congrats, Orio! I agreee, truly amazing lens! Can't wait to see some
"road tests" with this!

Bill

[LucisPictor]

Incredible! This low (almost zero) level of distortion from a 20mm lens at a FF cam? Incredible!

Congratulations, Orio, to your great find!
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Carsten, Moderator
Things ON SALE
Carsten = "KAPCTEH" = "Karusutenu" | T-shirt?.........................My photos from Emilia: http://www.schouler.net/emilia/emilia2011.html
Sets:
Leica M8 - Voigtländer Heliar 4.5/15 & Ultron 2/28 & Ultron 1.7/35 & Heliar 2.5/75, Leica Summitar 2/50 & Elmar 4/90, Jupiter-3, Jupiter-8,
Sony NEX-7 / NEX-3 - Tamron 2.5/24, Pentax-110 2.8 (18/24/50/70), Fujian CCTV 1.7/35, Hexanon 1.8/40 & 1.4/57, Schneider-Kreuznach Tele-Xenar 3.8/75, Zuiko 2.8/100, Leica Hektor 4.5/135, Sony SEL 2.8/16 & 18-55 OSS & 55-210 OSS, Sigma EX 2.8/19 & 2.8/30
Canon EOS 5D - Zenitar 2.8/16, Rokkor 2/28, Summicron-R 2.0/50, Nikkor-SC 1.2/55, Nikkor 1.8/85, Tamron 2.5/135, Elmar 4/180, Tamron 8/500,
Tamron 2.8-3.8/35-80, Sigma EX 15-30, Sigma 1.8/24, Canon EF 1.8/50, Tokina AT-X Pro 24-200 (EOS), Sigma 70-300
Canon EOS 300D - Steinheil 2.8/35, Zuiko 1.4/50, Helios-44 2/58, Jupiter-9 2/85, Vivitar S1 2.3/135
Nikon D1 & Fuji S2 Pro - Tamron 2.5/28, MIR 2/35, Jupiter-37 3.5/135, Soligor 3.5/70-220, Tamron 18-200
Nikon D3100 - Nikkor AF-S 18-55VR, AF-S 18-70, AF-S 55-200
Ricoh KR10x - Pentax-M 1.7/50, Rikenon 3.4-4.5/35-70
Nikon F - Nikkor 2.8/24, Nikkor-SC 1.4/50 a.s.a.
Asahi Spotmatic SPII: CZJ Flek 4/20, Tamron 3.5/35-70, Industar 3.5/5cm, Mamiya 1.8/55
EXA Varex - CZJ Biogon 2/58
Leica IIIa syn & Zorki-4 - (LTM lenses)

Leica C2, Minox 35 GL,Yashica Electro 35 GS, Kodak Retina Ia, Agfa Super Silette, Vivitar Ultra Wide & Slim, Adox Golf 66 and some others...
Sigma DP1s, Leica Digilux 2, Lumix LC-5 & FX37, Lumix FZ20, Canon G2, Sony Mavica 300, Fuji 4800Z + 4900Z, Oly C3030, Pentax Optio S, Nikon CP950, Sony V1 & F505 a.s.m.
Old list: http://forum.mflenses.com/viewtopic.php?t=65 (Not up-to-date, sorry!) | http://lucispictor.weebly.com | http://www.alensaweek.wordpress.com

[Orio]

yes guys, truly an amazing lens - but also my previous 4/20 have zero distortion. What makes this one different is that it has perfect mechanics, for once!
I have already tested it head to head with the black 4/20 which is the better of my previous 4/20 - it seems even sharper than the black one (which, being a later version, is supposed to be slightly better).
So really, a very lucky copy I have found. And the cheapest of all three, on top of that.
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[LucisPictor]

Orio, could you post a picture of the lens, please?
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Carsten, Moderator
Things ON SALE
Carsten = "KAPCTEH" = "Karusutenu" | T-shirt?.........................My photos from Emilia: http://www.schouler.net/emilia/emilia2011.html
Sets:
Leica M8 - Voigtländer Heliar 4.5/15 & Ultron 2/28 & Ultron 1.7/35 & Heliar 2.5/75, Leica Summitar 2/50 & Elmar 4/90, Jupiter-3, Jupiter-8,
Sony NEX-7 / NEX-3 - Tamron 2.5/24, Pentax-110 2.8 (18/24/50/70), Fujian CCTV 1.7/35, Hexanon 1.8/40 & 1.4/57, Schneider-Kreuznach Tele-Xenar 3.8/75, Zuiko 2.8/100, Leica Hektor 4.5/135, Sony SEL 2.8/16 & 18-55 OSS & 55-210 OSS, Sigma EX 2.8/19 & 2.8/30
Canon EOS 5D - Zenitar 2.8/16, Rokkor 2/28, Summicron-R 2.0/50, Nikkor-SC 1.2/55, Nikkor 1.8/85, Tamron 2.5/135, Elmar 4/180, Tamron 8/500,
Tamron 2.8-3.8/35-80, Sigma EX 15-30, Sigma 1.8/24, Canon EF 1.8/50, Tokina AT-X Pro 24-200 (EOS), Sigma 70-300
Canon EOS 300D - Steinheil 2.8/35, Zuiko 1.4/50, Helios-44 2/58, Jupiter-9 2/85, Vivitar S1 2.3/135
Nikon D1 & Fuji S2 Pro - Tamron 2.5/28, MIR 2/35, Jupiter-37 3.5/135, Soligor 3.5/70-220, Tamron 18-200
Nikon D3100 - Nikkor AF-S 18-55VR, AF-S 18-70, AF-S 55-200
Ricoh KR10x - Pentax-M 1.7/50, Rikenon 3.4-4.5/35-70
Nikon F - Nikkor 2.8/24, Nikkor-SC 1.4/50 a.s.a.
Asahi Spotmatic SPII: CZJ Flek 4/20, Tamron 3.5/35-70, Industar 3.5/5cm, Mamiya 1.8/55
EXA Varex - CZJ Biogon 2/58
Leica IIIa syn & Zorki-4 - (LTM lenses)

Leica C2, Minox 35 GL,Yashica Electro 35 GS, Kodak Retina Ia, Agfa Super Silette, Vivitar Ultra Wide & Slim, Adox Golf 66 and some others...
Sigma DP1s, Leica Digilux 2, Lumix LC-5 & FX37, Lumix FZ20, Canon G2, Sony Mavica 300, Fuji 4800Z + 4900Z, Oly C3030, Pentax Optio S, Nikon CP950, Sony V1 & F505 a.s.m.
Old list: http://forum.mflenses.com/viewtopic.php?t=65 (Not up-to-date, sorry!) | http://lucispictor.weebly.com | http://www.alensaweek.wordpress.com

[Orio]

[Orio]

I think they have changed the coating on the black version. You can see a difference in the color, the black version has a slightly yellow-tinted coating, whereas the zebra version has a neutral color coating.

Somebody told me a while ago, that the black version of this lens is reported to have multicoating even if not written on the barrel. This because the black version was made in a very short period, just before the 4/20 was discontinued in favor of the 2.8/20, which is multicoated. My guess is that the already had the barrel parts printed without the MC writing, so this iis why it's not written. but I indeed notice a visible difference in the coatings.

I have tried to get another black version. Two of them passed on the Ebay lately. But one was sold by Gold Camera, which is a seller I avoid, and the other one was sold by a Polish guy who asks for the VAT to be paid on top of the auction price (which I think it's illegal by the way, as the Ebay prices are already considered VAT inclusive)
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[LucisPictor]

Thanks, Orio!
These lenses do not only perform great, they also look great!
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Personal forum activity on pause!

Carsten, Moderator
Things ON SALE
Carsten = "KAPCTEH" = "Karusutenu" | T-shirt?.........................My photos from Emilia: http://www.schouler.net/emilia/emilia2011.html
Sets:
Leica M8 - Voigtländer Heliar 4.5/15 & Ultron 2/28 & Ultron 1.7/35 & Heliar 2.5/75, Leica Summitar 2/50 & Elmar 4/90, Jupiter-3, Jupiter-8,
Sony NEX-7 / NEX-3 - Tamron 2.5/24, Pentax-110 2.8 (18/24/50/70), Fujian CCTV 1.7/35, Hexanon 1.8/40 & 1.4/57, Schneider-Kreuznach Tele-Xenar 3.8/75, Zuiko 2.8/100, Leica Hektor 4.5/135, Sony SEL 2.8/16 & 18-55 OSS & 55-210 OSS, Sigma EX 2.8/19 & 2.8/30
Canon EOS 5D - Zenitar 2.8/16, Rokkor 2/28, Summicron-R 2.0/50, Nikkor-SC 1.2/55, Nikkor 1.8/85, Tamron 2.5/135, Elmar 4/180, Tamron 8/500,
Tamron 2.8-3.8/35-80, Sigma EX 15-30, Sigma 1.8/24, Canon EF 1.8/50, Tokina AT-X Pro 24-200 (EOS), Sigma 70-300
Canon EOS 300D - Steinheil 2.8/35, Zuiko 1.4/50, Helios-44 2/58, Jupiter-9 2/85, Vivitar S1 2.3/135
Nikon D1 & Fuji S2 Pro - Tamron 2.5/28, MIR 2/35, Jupiter-37 3.5/135, Soligor 3.5/70-220, Tamron 18-200
Nikon D3100 - Nikkor AF-S 18-55VR, AF-S 18-70, AF-S 55-200
Ricoh KR10x - Pentax-M 1.7/50, Rikenon 3.4-4.5/35-70
Nikon F - Nikkor 2.8/24, Nikkor-SC 1.4/50 a.s.a.
Asahi Spotmatic SPII: CZJ Flek 4/20, Tamron 3.5/35-70, Industar 3.5/5cm, Mamiya 1.8/55
EXA Varex - CZJ Biogon 2/58
Leica IIIa syn & Zorki-4 - (LTM lenses)

Leica C2, Minox 35 GL,Yashica Electro 35 GS, Kodak Retina Ia, Agfa Super Silette, Vivitar Ultra Wide & Slim, Adox Golf 66 and some others...
Sigma DP1s, Leica Digilux 2, Lumix LC-5 & FX37, Lumix FZ20, Canon G2, Sony Mavica 300, Fuji 4800Z + 4900Z, Oly C3030, Pentax Optio S, Nikon CP950, Sony V1 & F505 a.s.m.
Old list: http://forum.mflenses.com/viewtopic.php?t=65 (Not up-to-date, sorry!) | http://lucispictor.weebly.com | http://www.alensaweek.wordpress.com

[Orio]

[Orio]

by the way, have you noticed how smooth the bokeh on the Prakticas?
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[naplam]

An impressive lens Orio, congratulations. A full-frame camera like your 5D is the best option to test it to its limits

[Ballu]