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jmkmva
Joined: 25 Nov 2010 Posts: 78 Location: MidAtlantic US
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Posted: Mon Apr 06, 2020 8:21 pm Post subject: Canon R 135mm f3.5 |
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jmkmva wrote:
#1
Attached is a snap shot of the Canon R 135mm f3.5 (type 1) lens. The lens is from approximately 1959. I say approximately because I found the Canon Museum site to contain errors. More on that later.
The lens is certainly well build. hefty and easy to use and hold. It is also very short. Shorter than the R type 2, the FL and initial version of the FD 135mm f3.5 breech lock mount. Like Canon’s rangefinder lenses, These SLR lenses are 4 elements/3 group designs.
The R 135 f3.5 appears similar to a t-mount lens with the mount attached. The base of the lens surrounded by the chrome collar has a larger diameter than the barrel. It looks like a rangefinder lens attached to an SLR mount. Hum?
This lens is branded Canon not Canomatic like much of the R series. It simply has a simple aperture ring to open and close the aperture - like a rangefinder lens. No odd “semi-automatic” Canonflex aperture linkages to get in the way. Looking forward to trying this lens out.
The likely explanation, Canon used its rangefinder lens experience to transform their RF designs into SLR lenses for the Canonflex. The Canon R 105mm 3.5 is another example. I did find out more about this lens (and Canon Museum’s mis-listing of this lens) in an online article by Matt Flynn.
https://flynngraphics.ca/r135/[url][/url] |
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fdlenses
Joined: 15 Mar 2017 Posts: 56 Location: Germany
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Posted: Mon Apr 06, 2020 10:33 pm Post subject: |
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fdlenses wrote:
Can you please post a picture of the aperture closed half-way? I'd like to know if the aperture opening of your lens has the same odd shape as the R 135mm f3.5 (I) shown on Flynn Marr's page on this lens. |
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jmkmva
Joined: 25 Nov 2010 Posts: 78 Location: MidAtlantic US
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Posted: Mon Apr 06, 2020 10:49 pm Post subject: |
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jmkmva wrote:
Sure, fdlenses. I will be better able to post pictures tomorrow.
In the meantime, the diaphragm pattern of the blades pictured by Flynn are identical to mine. They do appears more typically rounded at smaller (numerically higher) apertures. |
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Alun Thomas
Joined: 20 Aug 2018 Posts: 614 Location: New Zealand
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Posted: Tue Apr 07, 2020 4:44 am Post subject: |
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Alun Thomas wrote:
It may be a similar case to the 100 F2, which looks to have been a Canon RF lens which was redesigned for use as one of the 'Canomatic' range of lenses.
http://forum.mflenses.com/canon-r-100mm-f2-t71356.html |
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jmkmva
Joined: 25 Nov 2010 Posts: 78 Location: MidAtlantic US
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Posted: Tue Apr 07, 2020 4:34 pm Post subject: |
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jmkmva wrote:
Here are photos of the aperture opening at f5.6 and f11.
It would be interesting to know if the Canon 135mm 3.5 rangefinder lens introduced in 1958 has the same aperture pattern.
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yoyomaoz
Joined: 31 Jul 2018 Posts: 89 Location: Adelaide
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Posted: Tue Apr 07, 2020 11:52 pm Post subject: |
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yoyomaoz wrote:
I happened to have bought one of these lenses quite a few years ago for just a few dollars in a bargain bin outside a camera store. initially I assumed it to be an FL lens (without checking) only to find later that it was an R lens. But this did not really matter in this case at least - the physical mounting scheme (breech lock) is the same as on an FL lens and hence this lens will mount on FL, FD cameras and all associated lens adapters used with mirrorless cameras. But its aperture arrangement is different. From memory, my lens has a pre-set aperture the same as many other preset lenses in Canon and other marques. I have read however that not all R lenses will mount properly on FL bodies due to interference from the automatic aperture arrangement that some R lenses had. But I have never checked or had the need to. According to this page https://www.cameraquest.com/canonflx.htm " When introduced, there were only two Canonflex lenses with automatic diaphragms, the 50/1.8 and the 100/2." So the majority of the R lenses would have been preset like mine and hence mount readily on later bodies - though there was not a large range of lenses for this range and surprisingly no wide angles.
As to image quality the 135mm f3.5 is in line with the vast majority of 135mm lenses of this era. It is pretty good - a sonnar design from memory (a design I have always liked in terms of rendering) which turns in predictably nice photos. The lens itself is skinny and relatively long (not my favoured form factor but perfectly functional never the less). In this regard it is somewhat similar to the long skinny black and chrome version of the 135mm f3.5 in LTM mount offered by Canon around the same time. As to the question about the aperture blade pattern, my recollection is that the late, black and chrome LTM one is the same. _________________ Peter M
Flickr me: https://www.flickr.com/photos/life_in_shadows/
Articles on Style and Mood in Photography
http://www.stevehuffphoto.com/2014/11/24/character-style-and-mood-in-photography-by-peter-maynard/
http://www.stevehuffphoto.com/2014/12/02/character-style-and-mood-in-photography-part-2-by-peter-maynard/
http://www.stevehuffphoto.com/2017/01/10/character-style-and-mood-in-photography-part-3-by-peter-maynard/ |
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fdlenses
Joined: 15 Mar 2017 Posts: 56 Location: Germany
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Posted: Thu Apr 16, 2020 10:17 pm Post subject: |
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fdlenses wrote:
jmkmva wrote: |
Here are photos of the aperture opening at f5.6 and f11. |
Thanks a lot!
The reason I was asking is that I found the same shape of the aperture with a Canon R 135mm 1:3.5 (II) and noticed something odd while cleaning it.
The aperture blades exhibit the same star-like shape as on your and Flynn's pictures:
The stud positions seem to be symmetrical:
See what happens when you install the blades “upside down”...
f/5.6:
f/11:
I was wondering if someone already did do a CLA and assembled the aperture incorrectly. (It's almost 60 years since the lens has left the factory.)
But after reading this thread and Flynn's 135 page it seems the “star pattern” is correct. |
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fdlenses
Joined: 15 Mar 2017 Posts: 56 Location: Germany
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Posted: Thu Apr 16, 2020 10:48 pm Post subject: |
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fdlenses wrote:
yoyomaoz wrote: |
So the majority of the R lenses would have been preset like mine and hence mount readily on later bodies - though there was not a large range of lenses for this range and surprisingly no wide angles. |
1961 R lens range:
And by the way: The same 1961 brochure proves that Flynn is correct claiming that Canon show wrong pictures for the R 135mm in their museum:
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Lightshow
Joined: 04 Nov 2011 Posts: 3669 Location: Calgary
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Posted: Fri Apr 17, 2020 4:09 am Post subject: |
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Lightshow wrote:
fdlenses wrote: |
jmkmva wrote: |
Here are photos of the aperture opening at f5.6 and f11. |
Thanks a lot!
The reason I was asking is that I found the same shape of the aperture with a Canon R 135mm 1:3.5 (II) and noticed something odd while cleaning it.
The aperture blades exhibit the same star-like shape as on your and Flynn's pictures:
The stud positions seem to be symmetrical:
See what happens when you install the blades “upside down”...
f/5.6:
f/11:
I was wondering if someone already did do a CLA and assembled the aperture incorrectly. (It's almost 60 years since the lens has left the factory.)
But after reading this thread and Flynn's 135 page it seems the “star pattern” is correct. |
You will know if they are upside down when you stop down to the smallest opening, the correct way will have a round aperture, this is due to the 7 or L shape of the blade(the inside corner to be specific), the older ( shaped blade has a more geometric pattern at the smallest opening. _________________ 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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Alun Thomas
Joined: 20 Aug 2018 Posts: 614 Location: New Zealand
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Posted: Wed Jan 25, 2023 10:38 pm Post subject: |
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Alun Thomas wrote:
#1
Wide open, near MFD.
#2
100% crop
I managed to find an R2000 camera locally, and it arrived with a copy of this lens. The rear element required a clean, and is good but not perfect. I tested the lens and was very impressed by the contrast and resolution right out to the frame edge even wide open. It improves even further on stopping down, but is surprisinglly good at full aperture. Although a modest aperture, the IQ overshadows the 50/1.8 lens which also came with the camera, especially wide open. |
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lumens pixel
Joined: 27 Feb 2019 Posts: 821
Expire: 2021-06-25
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Posted: Fri Jan 27, 2023 1:50 pm Post subject: |
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lumens pixel wrote:
If this shares the same optical formula with the FL line it is a very good lens. _________________ Lumens Pixel
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Minolta SR mount: 16 2,8; Sigma SuperWide 24 2,8; 28 2,5; 28 2,8; 28 3,5; 35 2,8; 45 2,0; 50 1,4; 50 1,7; 50 2,0; 58 1,4; 85 2,0; 100 2,5; 100 4 Macro; 135 3,5; 135 2,8; 200 4; RF 250 5,6; 24-35 3,5; 35-70 3,5; 75-150 4; 70-210 4
Canon FD mount: Tokina RMC 17 3,5; 28 2,8; 35 2,8; 50 1,8; 50 3,5 Macro; 55 1,2; 135 3,5; 135 2,5; 200 4,0; 300 5,6; 28-55 3,5 4,5; Tokina SZ-X SD 270; 70-150 4,5; 70-210 f4; 80-200 4L; Tokina SZ-X 845
Tamron Adaptall: 28-80 3,5-4,2 (27A); 70-210 3,8-4 (46A); 60-300 (23A); 90 2,5 (52B); 35-135 3,5-4,5 (40A)
Tamron SP: 20-40 2,7-3,5 (266D) |
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Alsatian2017
Joined: 05 Mar 2018 Posts: 237
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Posted: Fri Jan 27, 2023 2:54 pm Post subject: |
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Alsatian2017 wrote:
lumens pixel wrote: |
If this shares the same optical formula with the FL line it is a very good lens. |
As far as I know, the optical construction (4 elements arranged in 3 groups) doesn't change between the R, FL and first generation FD 135 mm f/3.5 SC lenses. The later FD SC (11/1976) and nFD 135 mm f/3.5 lenses have 4 separate lenses. _________________ Personal website : https://volkergilbertphoto.com
Classic lenses : https://volkergilbertphoto.com/objektive/
Instagram : https://www.instagram.com/volker.gilbert/ |
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papasito
Joined: 09 Jan 2015 Posts: 1658
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Posted: Fri Jan 27, 2023 3:00 pm Post subject: |
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papasito wrote:
Some years ago I ised the R 35/2,5 in Aps-c Sony 3-5N.
Great lens, very sharp from wide open. But very prone to flare, the coated is far from newers fórmulas.
If I find the 85 and/or the 100 mm R, will buy them |
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lumens pixel
Joined: 27 Feb 2019 Posts: 821
Expire: 2021-06-25
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Posted: Sat Jan 28, 2023 6:42 pm Post subject: |
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lumens pixel wrote:
papasito wrote: |
Some years ago I ised the R 35/2,5 in Aps-c Sony 3-5N.
Great lens, very sharp from wide open. But very prone to flare, the coated is far from newers fórmulas.
If I find the 85 and/or the 100 mm R, will buy them |
Not so on full frame. Angles are quite bad. _________________ Lumens Pixel
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Minolta SR mount: 16 2,8; Sigma SuperWide 24 2,8; 28 2,5; 28 2,8; 28 3,5; 35 2,8; 45 2,0; 50 1,4; 50 1,7; 50 2,0; 58 1,4; 85 2,0; 100 2,5; 100 4 Macro; 135 3,5; 135 2,8; 200 4; RF 250 5,6; 24-35 3,5; 35-70 3,5; 75-150 4; 70-210 4
Canon FD mount: Tokina RMC 17 3,5; 28 2,8; 35 2,8; 50 1,8; 50 3,5 Macro; 55 1,2; 135 3,5; 135 2,5; 200 4,0; 300 5,6; 28-55 3,5 4,5; Tokina SZ-X SD 270; 70-150 4,5; 70-210 f4; 80-200 4L; Tokina SZ-X 845
Tamron Adaptall: 28-80 3,5-4,2 (27A); 70-210 3,8-4 (46A); 60-300 (23A); 90 2,5 (52B); 35-135 3,5-4,5 (40A)
Tamron SP: 20-40 2,7-3,5 (266D) |
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Alsatian2017
Joined: 05 Mar 2018 Posts: 237
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Posted: Mon Jan 30, 2023 4:07 pm Post subject: |
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Alsatian2017 wrote:
lumens pixel wrote: |
papasito wrote: |
Some years ago I ised the R 35/2,5 in Aps-c Sony 3-5N.
Great lens, very sharp from wide open. But very prone to flare, the coated is far from newers fórmulas.
If I find the 85 and/or the 100 mm R, will buy them |
Not so on full frame. Angles are quite bad. |
Right, and sharpness wide open in the center is nothing to write home about as well _________________ Personal website : https://volkergilbertphoto.com
Classic lenses : https://volkergilbertphoto.com/objektive/
Instagram : https://www.instagram.com/volker.gilbert/ |
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stevemark
Joined: 29 Apr 2011 Posts: 3751 Location: Switzerland
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Posted: Mon Jan 30, 2023 10:42 pm Post subject: |
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stevemark wrote:
Alsatian2017 wrote: |
lumens pixel wrote: |
papasito wrote: |
Some years ago I ised the R 35/2,5 ... |
... on full frame. Angles are quite bad. |
Right, and sharpness wide open in the center is nothing to write home about as well |
This (missing) performance is typical for 1st gen retrofocus wideangles, usually based on a tessar-typ master lens and a negative "wide-angle-converter" placed in front of the master lens. Lenses with similar performance problems are e. g. the 1st generation of the Konica AR 2.8/35mm, the earlier 7L computation of the Minolta AR/MC 2.8/35mm, the Asahi (Pentax) 2.3/35mm and early versions of the Nikkor 2.8/35mm.
S _________________ www.artaphot.ch |
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