New Member Registered: November, 2018 Location: Southern California Posts: 12
1 user found this helpful
| | Review Date: April 1, 2021 | Recommended | Price: None indicated
| Rating: 10 |
| Pros: | sharpness, contrast, rendering, bokeh | | Cons: | flare | | Sharpness: 10
Bokeh: 9
Handling: 10
Camera Used: Zeiss Icarex 35S Pro and others
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I bought the Zeiss Icarex 35S Pro used with the Ultron in the mid-70s (from my dad who bought it new). I used it for many years until the shutter starting failing in the camera. At that time I started shooting more medium format, and put this camera in deep storage for 25 years or so. I revived the lens recently, and it is now one of my favorite lenses for shooting 35mm film. First I show 3 bokeh examples: "flower" (Kodachrome 25; very close, fairly open), "Swinging Baobab" (Ilford FP4+; close, but f5.6-f8), and "wine glass" illustrates the potential for bubbly bokeh wide open (Plus-X). "Oaks on a Hill" show the general sharpness and contrast (Ilford FP4+). Finally "run" illustrates the potential for flare in the Ultron (Plus-X).
flower
Swinging Baobab
wine glass
Oaks on a Hill
run
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New Member Registered: February, 2020 Posts: 1 | | Review Date: February 18, 2020 | Recommended | Price: $550.00
| Rating: 10 |
| Pros: | A superb lens with character! Nice Bokeh, sharp enough with the fully open aperture1.8. | | Cons: | High price and hard to find M42 version | | Sharpness: 10
Aberrations: 9
Bokeh: 10
Handling: 9
Value: 10
Camera Used: Sony A7RII
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Yes the ZEISS 50MM F1.8 ULTRON lens is really something special. Very glad I finally managed to get one myself. A superb lens with character!  | |
New Member Registered: February, 2017 Posts: 2
1 user found this helpful
| | Review Date: May 3, 2018 | Recommended | Price: None indicated
| Rating: 10 |
| Pros: | Very sharp even wide open | | Cons: | Only takes Zeiss B50 filters | | Sharpness: 10
Aberrations: 7
Bokeh: 10
Handling: 9
Value: 10
Camera Used: Sony A6000
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I love this lens!
I was fortunate to find this as part of a local auction lot. I picket up the entire lot for $119. I have already sold some of the lessor items and made beck my purchase price!!
The lens is about the sharpest I've used on my Sony A6000. My copy is the M42 version and came mounted on an Icarex 35S. The focus and aperture rings are smooth with non clicking motion in the aperture ring.
The lens produces a wonderful bokeh while still being very sharp wide open! I even like the lens flare it produces.
The lens came with two of the original Zeiss lens hoods and a set of Zeiss close up filters. Unfortunately the UV and polarizer filters that also came with it had issues and are not usable.
Other than the lens requiring a Zeiss B50 filter type and the lens being somewhat heavy, I have nothing bad to say about this lens.
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New Member Registered: November, 2013 Posts: 14 | | Review Date: March 12, 2015 | Recommended | Price: None indicated
| Rating: 8 |
| Pros: | amazing sharpness | | Cons: | minimal CA's wide open | | Sharpness: 9
Aberrations: 7
Bokeh: 8
Handling: 8
Value: 8
Camera Used: k-x, spotmatic, fuji x-e1
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high contrast
f5.6 very sharp
very good colors
very expensive | |
Veteran Member Registered: February, 2009 Posts: 621
1 user found this helpful
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New Member Registered: October, 2010 Location: bronx Posts: 6
3 users found this helpful
| | Review Date: December 18, 2010 | Recommended | Price: $400.00
| Rating: 10 |
| Pros: | Amazingly Sharp | | Cons: | Beautiful bokeh "Bouquet " | |
Carl Zeiss Ultron 50mm f1.8 concave front element
42mm Pentax Screw Mount
Has a reputation superior to Leica Summitar f/2 and Summicron f/2 first generation.
Depth of field button on lens must be held to use lens stopped down.
I owned this lens in 1970 on a Zeiss Icarex 35s TM PRO that I owned till 1979.
Nostalgia set in over the summer and I decided to look for one.
After a 2 month search I found one. My plan was to use it on the Icarex film camera.
Thant did not last long.
So it seemed the easiest way to use the lens and test it was on a pentax digital camera with 42mm adapter.
I settled on the K-X.
Well this lens is amazing.
I blew away the standard SMC Pentax-DA L 18-55mm F3.5-5.6 AL
But I had nothing to else compare it to.
So I bought a few lenses to compare.
Super Takumar 50mm F1.4
SMC Pentax-M 50mm F1.4
SMC Pentax-M 50mm F1.7
SMC Pentax-A 50mm F1.4
SMC Pentax-FA 50mm F1.7
Well it blows them all away. Now it's a shelf queen.
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;)
;)
