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Cooke Triplet thread - Normal Lenses from 40mm to 50mm
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PostPosted: Wed Apr 27, 2016 9:49 am    Post subject: Reply with quote
A question. Just gotten in to these triplets lenses wich I like a lot. Is there longer focal length lenses as well that are triplets? I got two rodenstock
, a Reomar 45mm and a trinar 80mm, but I would like even an longer one. Do you have any recomendations?
Kjell

Fireworks with the latter


PostPosted: Wed Apr 27, 2016 10:23 am    Post subject: Reply with quote
Triplets are even more commonly found on longer focal length. To name a few:

For 35mm Camera:
Feinmess Dresden Bonotar, Steinheil Cassar 105/4.5
CZJ Triotar , Minolta Rokkor TC and Topcon Macro-Topcor 135/4
and etc.

Projection lens:
Meyer Diaplan/Pentacon AV
Rodenstock Splendar
Enna Ennagon
and etc.

I have very limited experience on these and I can't give you a recommendation.


PostPosted: Wed Apr 27, 2016 8:28 pm    Post subject: Reply with quote
The TAIR-3 300mm f4.5 lens (Photosniper) is a triplet and a very fine lens as well.

Mark


PostPosted: Thu Apr 28, 2016 2:25 am    Post subject: Reply with quote
TAIR-3 is a bit different from the original triplet. It is a real/true telephoto design with large positive front and small negative rear element.


PostPosted: Thu Apr 28, 2016 7:52 am    Post subject: Reply with quote
calvin83 wrote:
Projection lens:
Meyer Diaplan/Pentacon AV
Rodenstock Splendar
Enna Ennagon
and etc.
I have very limited experience on these and I can't give you a recommendation.


I recently found a V/S -Heidosmat projection lens 2.4/90 MC, from a Rollei projector I presume.
Rather fast lens for a triplet. Does anyone know if it is a triplet?


PostPosted: Thu Apr 28, 2016 9:44 am    Post subject: Reply with quote
Minolfan wrote:
calvin83 wrote:
Projection lens:
Meyer Diaplan/Pentacon AV
Rodenstock Splendar
Enna Ennagon
and etc.
I have very limited experience on these and I can't give you a recommendation.


I recently found a V/S -Heidosmat projection lens 2.4/90 MC, from a Rollei projector I presume.
Rather fast lens for a triplet. Does anyone know if it is a triplet?

With such fast speed, it is very unlikely be a triple. It may be a 5 or 6 element design similar to the Leica Coloarplan 90 2.5.


PostPosted: Thu Apr 28, 2016 4:50 pm    Post subject: Reply with quote
Reflection with a flashlight don't give me a clear impression.
May be the Heidosmat has more than 3 elements.
However AFAIK every Heidosmat viewer lens on Rolleiflexes is a triplet.

Last edited by Minolfan on Sun May 01, 2016 5:22 pm; edited 1 time in total


PostPosted: Sun May 01, 2016 7:06 am    Post subject: Reply with quote
Untitled by Berang Berang, on Flickr

ISCO Isconar 2.8/50

Isconar by Berang Berang, on Flickr


PostPosted: Sun May 01, 2016 11:59 am    Post subject: Reply with quote
The lens Isconar matches the camera very well. Like 1 small


PostPosted: Sun May 08, 2016 9:54 am    Post subject: Reply with quote
I tried my Color-Lanthar yesterday. It does give similar bokeh as many over-corrected triplets. I will open a new thread later today for more photos.



PostPosted: Sun May 08, 2016 1:57 pm    Post subject: Reply with quote
Belcanto wrote:
A question. Just gotten in to these triplets lenses wich I like a lot. Is there longer focal length lenses as well that are triplets? I got two rodenstock, a Reomar 45mm and a trinar 80mm, but I would like even an longer one. Do you have any recomendations?


You can try to get some of the smaller genuine TT &H Cooke triplets. The older TT &H Cooke Anastigmats were regarded as the best Anastigmats ever made.
I have a few of them in the 4-8 inches range and I like them a lot. After all TT&H invented (well, actually bought the patent...) the Cooke triplet Smile

You can see some samples on our member Vilva page here:
http://galactinus.net/vilva/retro/#cooke


PostPosted: Fri Apr 16, 2021 8:31 pm    Post subject: Reply with quote
Gerald wrote:
I've just rescued the list and optical diagrams of triplets and derivatives that were lost when the forum had a technical problem a few years ago. Of course, the triplet lenses are those corresponding to the diagram T1.

http://forum.mflenses.com/viewtopic,p,1381407.html#1381407


Already found a mistake in that great list you provided!
Primoplan 58 1.9 is not at all triplet design, its 5 elements in 4 groups.Smile
Thanks for providing it tho, alot of names came up!


PostPosted: Fri Apr 16, 2021 11:58 pm    Post subject: Reply with quote
Ignacio_Sottano wrote:
Already found a mistake in that great list you provided!
Primoplan 58 1.9 is not at all triplet design, its 5 elements in 4 groups.


The Primoplan is collectedly listed as design T14, 5elements in 4 groups.
Only question is of that is a really a derivate of a triplet.
Thank You Dog


PostPosted: Sat Apr 17, 2021 3:42 am    Post subject: Reply with quote
Minolfan wrote:
Ignacio_Sottano wrote:
Already found a mistake in that great list you provided!
Primoplan 58 1.9 is not at all triplet design, its 5 elements in 4 groups.


The Primoplan is collectedly listed as design T14, 5elements in 4 groups.
Only question is of that is a really a derivate of a triplet.
Thank You Dog

I think the Primoplan is a derivate of a triplet by adding a doublet behind the front element.


PostPosted: Sat Apr 17, 2021 3:45 am    Post subject: Reply with quote
The APO-Lumar is also a triplet with very good CA control at close distance.

http://forum.mflenses.com/corfield-england-apo-lumar-50mm-f3-5-on-a7r-ii-part-i-t78765.html


PostPosted: Sat Apr 17, 2021 7:06 am    Post subject: Reply with quote
Angeneiux Z2 50mm f2.9, processed to bring out the bokeh a little. If you go to a little longer focal length, there are some great triplets in the range of 75-80mm including the Isco Westar 75 2.9 Enna Correlar 80 2.9 and Balda Baltar 75 and 80 2.9s.

#1


#2


#3


#4


#5


PostPosted: Sat Apr 17, 2021 9:24 am    Post subject: Reply with quote
Like 1

Z2 is one of the triplets I was looking for. Never found one with my limited budget.


PostPosted: Sat Apr 17, 2021 10:56 am    Post subject: Reply with quote
Belcanto wrote:
A question. Just gotten in to these triplets lenses wich I like a lot. Is there longer focal length lenses as well that are triplets? I got two rodenstock
, a Reomar 45mm and a trinar 80mm, but I would like even an longer one. Do you have any recomendations?
Kjell


The less expensive Kodak folders for 616 film with Anastigmat (later Anaston) and not the more expensive Anastigmat Special (Later Anastar) which is a very good Tessar design. Around 126mm focal length. (L) on the lens rim when coated. For example: http://www.bnphoto.org/bnphoto/KodakMonitor.htm

Some old larger Polaroid camera models whether folders or rigid will have longer focal length triplets. Search for it, you may find some with lenses that have not more than 2 elements and some with 4 element Tessar designs. Triplets in between of 130mm focal length. http://www.landlist.ch/landlist/landhome.htm https://www.photo.net/discuss/threads/polaroid-800.229626/

As cameras they are hardly usable anymore with the films being discontinued, conversions possible but usually done on the models with Tessar type lenses. You can get older triplets but these are more modern, with better glass and usually coated.


PostPosted: Sat Apr 17, 2021 4:03 pm    Post subject: Reply with quote
Like 1 Like 1 Like 1 a legend!!


PostPosted: Sat Apr 17, 2021 8:27 pm    Post subject: Reply with quote
Far too heavily processed for my tastes, like a synthetic character has been imposed on the images rather than letting their natural aesthetic speak for itself, thus giving a somewhat false impression of how the lens actually renders.

In fact, I think the processing has ruined those shots, it's made the bokeh distracting and harsh and detracted from the subject and composition.


PostPosted: Mon Apr 19, 2021 8:00 am    Post subject: Reply with quote
kymarto wrote:
Angeneiux Z2 50mm f2.9, processed to bring out the bokeh a little...


Like 1 Like 1 Like 1


PostPosted: Wed Apr 21, 2021 8:17 pm    Post subject: Reply with quote
iangreenhalgh1 wrote:

In fact, I think the processing has ruined those shots, it's made the bokeh distracting and harsh and detracted from the subject and composition.


Being someone who usually prefers a smooth bokeh I tend to agree with Ian. The serenity of the Buddha statues, for instance, doesn't go well with the "noisy" bokeh. However, I really like #3 !

S


PostPosted: Wed Apr 21, 2021 9:55 pm    Post subject: Reply with quote
The ultra cheap Lomo T-43 40/4 is also a tip. It can be found on the most produced camera in the world. The Smena. Although marked 40 it is actually 42mm.

http://forum.mflenses.com/lomo-t-43-40-4-from-smena-camera-adapted-to-sony-e-t72979.html


PostPosted: Wed Dec 14, 2022 8:00 am    Post subject: Reply with quote
I put more information on the background of cooke triplet my blog.
https://lensfever.com/the-legend-of-3-element-lens-brief-introduction-of-cooke-triplet/

The review of the following lenses will be post later:
Meyer Trioplan 100/2.8
Voigtlander Color-Lanthar 50/2.8
Leica Elmar 90/4.0 3e
British APO triplet
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