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Macca
Joined: 20 Mar 2012 Posts: 248 Location: Glasgow, Scotland.
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Posted: Sat Apr 25, 2015 10:23 am Post subject: RE Auto Topcor 20mm f4 |
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Macca wrote:
A few from this old rarity.Processing may be iffy as I`m working of an old laptop for the past few months due to house renovations and it`s not ideal, so minimal pp mostly.
First shot on a dull day
Some indoor museum type shots,highish iso.
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High contrast day- beach type.
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refelction in bottom right corner caused by lens hood/polariser.
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A couple of Topcor "blue sky" shots.
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Both shot with series 9 linear polariser. All on A7 mk 2. _________________ Sony A7iii.
CZ Distagon 15mm 2.8,Loxia 25mm 2.4,RE Auto Topcor 35mm 2.8,Contax Zeiss 35mm1.4,Minolta M Rokkor 40mm f2, Jupiter 3 50mm 1.5, Kuribayashi CC Petri Orikkor 50mm 2,Topcor S 50mm f2,Topcor RE GN 50mm 1.8,RE Auto Topcor 58mm 1.4, Helios 44m 2,Steinheil Munchen Auto Quinon 55m 1.9,Olympus auto g zuiko 60mm f1.5 ,KMZ PO2-2M 75mm F2,Jupiter 9 85mm f2(Arsenal Kiev),RE Auto Topcor 85mm 1.8,Leica Elmarit 90mm 2.8 R, RE Auto Topcor 100mm 2.8,Meyer Orestor 100mm 2.8,,F.B.R.105mm 2.4, RE Auto Topcor 135mm 3.5,Leica Elmarit R 135mm 2.8,Steinheil Munchen Quinar VL 135mm 2.8,Contax Zeiss 100-300mm 4.5-5.6, Vernon Edonar 350mm 5.5 |
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scsambrook
Joined: 29 Mar 2009 Posts: 2167 Location: Glasgow Scotland
Expire: 2011-11-18
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Posted: Sat Apr 25, 2015 11:03 am Post subject: |
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scsambrook wrote:
Well, they look nice on my screen - quite an uncommon lens. _________________ Stephen
Equipment: Pentax DSLR for casual shooting, Lumix G1 and Fuji XE-1 for playing with old lenses, and Leica M8 because I still like the optical rangefinder system. |
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cyrano
Joined: 15 Feb 2013 Posts: 857 Location: UK
Expire: 2016-12-30
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Posted: Sat Apr 25, 2015 12:25 pm Post subject: |
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cyrano wrote:
That looks to do the job! Is it that rare a lens? _________________ A whole bunch of stuff. |
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Macca
Joined: 20 Mar 2012 Posts: 248 Location: Glasgow, Scotland.
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Posted: Sat Apr 25, 2015 1:27 pm Post subject: |
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Macca wrote:
According to Antonetto and known existing serial numbers no more than 1800-2000 were ever made. _________________ Sony A7iii.
CZ Distagon 15mm 2.8,Loxia 25mm 2.4,RE Auto Topcor 35mm 2.8,Contax Zeiss 35mm1.4,Minolta M Rokkor 40mm f2, Jupiter 3 50mm 1.5, Kuribayashi CC Petri Orikkor 50mm 2,Topcor S 50mm f2,Topcor RE GN 50mm 1.8,RE Auto Topcor 58mm 1.4, Helios 44m 2,Steinheil Munchen Auto Quinon 55m 1.9,Olympus auto g zuiko 60mm f1.5 ,KMZ PO2-2M 75mm F2,Jupiter 9 85mm f2(Arsenal Kiev),RE Auto Topcor 85mm 1.8,Leica Elmarit 90mm 2.8 R, RE Auto Topcor 100mm 2.8,Meyer Orestor 100mm 2.8,,F.B.R.105mm 2.4, RE Auto Topcor 135mm 3.5,Leica Elmarit R 135mm 2.8,Steinheil Munchen Quinar VL 135mm 2.8,Contax Zeiss 100-300mm 4.5-5.6, Vernon Edonar 350mm 5.5 |
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calvin83
Joined: 12 Apr 2009 Posts: 7555 Location: Hong Kong
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Posted: Sat Apr 25, 2015 3:48 pm Post subject: |
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calvin83 wrote:
I have this lens and it perform pretty good on my 5N. It is good to see it perform pretty well on an A72 too. _________________ https://lensfever.com/
https://www.instagram.com/_lens_fever/
The best lens is the one you have with you. |
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vroger
Joined: 23 Jul 2014 Posts: 623 Location: MN
Expire: 2016-10-21
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Posted: Sat Apr 25, 2015 5:48 pm Post subject: |
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vroger wrote:
Thanks for sharing. _________________ Roger Lund
Canon EOS-M, Fuji X-E2, Helois 44-0 Vintage, Helois 44-4, Canon FD 50mm 1.8, Jupiter 8 50mm F2, Jupiter 3 50mm F1.5, Canon Serenar 50mm 1.9, Canon 50mm 1.8 LTM, Canon Serenar 85mm F2, Leica 50mm f2 summar, E.Ludwig 50mm F2.9, Rekagon will.wetzlar 50mm 2.8,, a.schacht ulm travenar 135mm F3.5, CZJ 29mm 2.8 Hoya 28mm 2.8, CZ Tessar 50mm 2.8, MIR 37mm. 2.8, Porst Color Reflex MC 50mm 1.7, Vivitar 28mm 2.8 mc cf
http://photography.rogerlund.net
For sale: Canon EOS-M and MF Adapters. |
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Lightshow
Joined: 04 Nov 2011 Posts: 3666 Location: Calgary
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Posted: Sat Apr 25, 2015 6:40 pm Post subject: |
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Lightshow wrote:
Very nice. _________________ A Manual Focus Junky...
One photographers junk lens is an artists favorite tool.
My lens list
http://www.flickr.com/photos/lightshow-photography/ |
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Macca
Joined: 20 Mar 2012 Posts: 248 Location: Glasgow, Scotland.
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Posted: Sun Apr 26, 2015 10:10 am Post subject: |
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Macca wrote:
Thanks folks, these first ones were in more challenging conditions I guess and I`m still getting used to the A7mk2 and lens combo as it`s wider than I usually shoot! Here`s some more recent shots, it really is a fine little lens, not as soft in the corners as as I`ve read.
Topcor wides usually tolerate being stopped down to f13-16 without any great loss through diffraction, not a huge amount of distortion either so looking forward to using it more over the coming months.
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3. _________________ Sony A7iii.
CZ Distagon 15mm 2.8,Loxia 25mm 2.4,RE Auto Topcor 35mm 2.8,Contax Zeiss 35mm1.4,Minolta M Rokkor 40mm f2, Jupiter 3 50mm 1.5, Kuribayashi CC Petri Orikkor 50mm 2,Topcor S 50mm f2,Topcor RE GN 50mm 1.8,RE Auto Topcor 58mm 1.4, Helios 44m 2,Steinheil Munchen Auto Quinon 55m 1.9,Olympus auto g zuiko 60mm f1.5 ,KMZ PO2-2M 75mm F2,Jupiter 9 85mm f2(Arsenal Kiev),RE Auto Topcor 85mm 1.8,Leica Elmarit 90mm 2.8 R, RE Auto Topcor 100mm 2.8,Meyer Orestor 100mm 2.8,,F.B.R.105mm 2.4, RE Auto Topcor 135mm 3.5,Leica Elmarit R 135mm 2.8,Steinheil Munchen Quinar VL 135mm 2.8,Contax Zeiss 100-300mm 4.5-5.6, Vernon Edonar 350mm 5.5 |
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IAZA
Joined: 16 Apr 2010 Posts: 2587 Location: Indonesia
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Posted: Mon Apr 27, 2015 2:56 am Post subject: |
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IAZA wrote:
nice samples.
I have this lens too. Many people said, it has better sharpness compared to Flektogon 20/4. I agree with it. specially wide open. _________________ nex5, Olympus EPM1, yashica half 14, Canon eos 650 want to see samples of mine? please click My lenses
and My gallery
~Suat~ |
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Macca
Joined: 20 Mar 2012 Posts: 248 Location: Glasgow, Scotland.
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Posted: Mon Apr 27, 2015 1:54 pm Post subject: |
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Macca wrote:
Thanks IAZA, nice to know.Strangely enough apart from the couple of days I`ve had out with it I haven`t really used it wide open or close up yet so will when I get the chance! _________________ Sony A7iii.
CZ Distagon 15mm 2.8,Loxia 25mm 2.4,RE Auto Topcor 35mm 2.8,Contax Zeiss 35mm1.4,Minolta M Rokkor 40mm f2, Jupiter 3 50mm 1.5, Kuribayashi CC Petri Orikkor 50mm 2,Topcor S 50mm f2,Topcor RE GN 50mm 1.8,RE Auto Topcor 58mm 1.4, Helios 44m 2,Steinheil Munchen Auto Quinon 55m 1.9,Olympus auto g zuiko 60mm f1.5 ,KMZ PO2-2M 75mm F2,Jupiter 9 85mm f2(Arsenal Kiev),RE Auto Topcor 85mm 1.8,Leica Elmarit 90mm 2.8 R, RE Auto Topcor 100mm 2.8,Meyer Orestor 100mm 2.8,,F.B.R.105mm 2.4, RE Auto Topcor 135mm 3.5,Leica Elmarit R 135mm 2.8,Steinheil Munchen Quinar VL 135mm 2.8,Contax Zeiss 100-300mm 4.5-5.6, Vernon Edonar 350mm 5.5 |
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stevemark
Joined: 29 Apr 2011 Posts: 3925 Location: Switzerland
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Posted: Sat Sep 19, 2015 6:59 pm Post subject: |
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stevemark wrote:
I recently found one of these little rare RE 4/20 mm beasts, together with the classical RE 1.8/5.8 cm and the RE 2.8/10 cm. Since i don't have an adapter yet, i didn't use it on the A7II. Together with the RE 1.4/5.8cm and the RE 3.5/135mm and two (slightly different) Topcon RE super SLRs they make a small but nice collection.
Which adapter do you use on the Sony A7II?
Stephan |
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Lightshow
Joined: 04 Nov 2011 Posts: 3666 Location: Calgary
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Posted: Sat Sep 19, 2015 10:04 pm Post subject: |
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Lightshow wrote:
I'm using a Big_is adapter, it's ok, my only nitpick is the release lever doesn't stick out very far, it's almost flush with the body of the lens, that may be a good thing depending on how you look at it. _________________ A Manual Focus Junky...
One photographers junk lens is an artists favorite tool.
My lens list
http://www.flickr.com/photos/lightshow-photography/ |
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stevemark
Joined: 29 Apr 2011 Posts: 3925 Location: Switzerland
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Posted: Sun Jan 16, 2022 12:23 am Post subject: |
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stevemark wrote:
Here are a few images taken today here in my hometown Luzern (Lucerne in English). The light was peculiar - some very slight fog / mist, and very dim sunlight "shining" through the overcast. All pictures taken with Topcor RE 4/20mm and Sony A7II in "autumn mode" (to enhance colors, especially the yellows & reds).
PLEASE CLICK ON THE IMAGES TO GET ORIGINAL COLORS - FOR REASONS UNKNOWN TO ME SOME OF THE "THUMBNAILS" SHOWN BELOW HAVE PRETTY DULL COLORS ... !
Kasernenplatz in Lucerne, with the Science Museum on the left and the Historical Museum in the middle.
Topcor RE 4/20mm @ f11. JPG out of Sony A7II, "autumn mode".
Small venue near the Kasernenplatz, with parts of the building of the "Luzerner Staatsarchiv" (state archives) on the right.
Topcor RE 4/20mm @ f11. JPG out of Sony A7II, "autumn mode".
Display window of the "Alte Suidtersche Apotheke", the oldest pharmacy in Lucerne.
Topcor RE 4/20mm @ f11. JPG out of Sony A7II
Ancient houses near the Pilatusplatz. Some building in this street date back to the 15th century.
Topcor RE 4/20mm @ f4 (wide open). JPG out of Sony A7II, "autumn mode".
View from the Jesuitenkirche over the Reuss river. Large renaissance style building with tower on the left side is the Rathaus (city hall), built 1602-1606 partly in Italian style (facade) and partly in local style (roof). On the right side the Wasserturm ("water tower") which probably dates back to 1300.
Topcor RE 4/20mm @ f11. JPG out of Sony A7II, "autumn mode".
Back side of the main building of the "Luzerner Kantonalbank" (state bank of Lucerne), built around 1973.
Topcor RE 4/20mm @ f11. JPG out of Sony A7II, "autumn mode".
Detail of a zebra crossing and pavement just behind the "Kantonalbank".
Topcor RE 4/20mm @ f11. JPG out of Sony A7II, "autumn mode".
Ancient buildings adjacent to the Reuss river, partly dating back to the 16th century.
Topcor RE 4/20mm @ f11. JPG out of Sony A7II, "autumn mode".
Picture taken at the same location as above, but in the other direction: The Reuss river and the regulation system for adjusting its flow and for regulating the level of Lake Lucerne ("Vierwaldstättersee").
Topcor RE 4/20mm @ f11. JPG out of Sony A7II, "autumn mode".
S _________________ www.artaphot.ch |
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stevemark
Joined: 29 Apr 2011 Posts: 3925 Location: Switzerland
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Posted: Sun Jan 16, 2022 1:01 am Post subject: |
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stevemark wrote:
Compared to other well respected "slow" and small superides, the Topcor RE perfoms very well, especially at f11. I am pretty impressed by the lacking CAs and the very good corners. Actually this lens, at f11, might be nearly as good as the Loxia 21mm!
First the overview and the crop area (yellow):
Now the 100% crops from JPGs out of the 24 MP Sony A7II.
CLICK TWICE ON THE IMAGE TO GET FULL RESOLUTION!
I have tested also the Konica AR 4/21mm (with 77mm filter diameter certainly not a small lens), and it is not as good as the Topcor, but better than the Olympus.
Maybe that's useful for those who look for a smallish 20mm "landscape" lens with a very good performance at f8 or f11.
S _________________ www.artaphot.ch |
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cbass
Joined: 27 Jul 2019 Posts: 446
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Posted: Sun Jan 16, 2022 3:06 am Post subject: |
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cbass wrote:
These old top whores can really surprise you. |
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kds315*
Joined: 12 Mar 2008 Posts: 16623 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Sun Jan 16, 2022 10:25 am Post subject: |
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kds315* wrote:
I have it, too _________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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Lightshow
Joined: 04 Nov 2011 Posts: 3666 Location: Calgary
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Posted: Mon Jan 17, 2022 7:11 am Post subject: |
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Lightshow wrote:
cbass wrote: |
These old top whores can really surprise you. |
O_o _________________ A Manual Focus Junky...
One photographers junk lens is an artists favorite tool.
My lens list
http://www.flickr.com/photos/lightshow-photography/ |
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stevemark
Joined: 29 Apr 2011 Posts: 3925 Location: Switzerland
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Posted: Thu Dec 14, 2023 9:52 pm Post subject: |
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stevemark wrote:
The achilles heel of the Topcor RE 4/20mm is its strong and complex distortion:
Those lines at the border should be straight. They are not.
Image taken at the Rittersaâl of the episcopal castle of Chur / Switzerland.
S _________________ www.artaphot.ch |
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D1N0
Joined: 07 Aug 2012 Posts: 2530
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Posted: Thu Dec 14, 2023 10:31 pm Post subject: |
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D1N0 wrote:
Much like the Pentax-m 20/4. I looked up the diagrams to see if they might be the same. Not really
left Pentax, right topcor
Well at least no change of separation problems with the Pentax _________________ pentaxian |
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John Shriver
Joined: 24 Dec 2009 Posts: 198
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Posted: Fri Dec 29, 2023 1:59 am Post subject: |
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John Shriver wrote:
I've never had element separation on any Topcor lens, and I have all the R. Topcor and RE. Auto-Topcor lenses.
I have had element separation in the Pentax 100/4 short-mount K-mount macro lens, and on a Leica Summar 50/2.0. Former was fixed by Eric Hendrickson, and I baked the Summar doublet in the oven (it also had a cracked element). |
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BrianSVP
Joined: 09 Jun 2023 Posts: 335 Location: Philadelphia
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Posted: Sat Dec 30, 2023 12:08 am Post subject: |
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BrianSVP wrote:
I've recemented an RE 58mm f/1.4 that had yellow edge separation in both doublets. Original cement was Canada balsam, which I replaced with Norland UV cure lens adhesive.
The Pentax 100 macro uses an early form of UV cure epoxy and almost always ends up with hazy separation. The SMC-K 50mm f/1.4 also tends to this problem. Whereas the topcor only required an acetone bath to separate, the Pentaxes require Methylene Chloride, or if you can't find it, you can place the doublet on top of a cold 100w bulb, then turn it on, which heats it gently enough to separate the crown and flint without cracking them. Just make sure you monitor it carefully and turn the bulb off as soon as the cement has separated, so it doesn't get too soft, allowing the top element to slide off onto the floor.
John Shriver wrote: |
I've never had element separation on any Topcor lens, and I have all the R. Topcor and RE. Auto-Topcor lenses.
I have had element separation in the Pentax 100/4 short-mount K-mount macro lens, and on a Leica Summar 50/2.0. Former was fixed by Eric Hendrickson, and I baked the Summar doublet in the oven (it also had a cracked element). |
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ZuikosHexanonsandVivitars
Joined: 03 Nov 2021 Posts: 249 Location: Austria
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Posted: Thu Jan 04, 2024 8:18 am Post subject: |
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ZuikosHexanonsandVivitars wrote:
Lightshow wrote: |
cbass wrote: |
These old top whores can really surprise you. |
O_o |
That´s probably one of these "damn autocorrect" moments. _________________ Cheers, Gerhard |
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