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Pentacon 135mm f2.8 Auto MC

Sharpness 
 6.8
Aberrations 
 6.2
Bokeh 
 7.0
Handling 
 7.2
Value 
 7.2
Reviews Views Date of last review
7 36,879 Fri January 27, 2017
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Recommended By Average Price Average User Rating
57% of reviewers $31.00 6.43
Pentacon 135mm f2.8 Auto MC

Pentacon 135mm f2.8 Auto MC
supersize
Pentacon 135mm f2.8 Auto MC
supersize

Description:
" PENTACON auto 2.8/135 MC "
M42 mount
6 blade iris
f2.8 to f22
MFD = 5.5 ft
Auto/manual switch
Built-in hood
"German Democratic Republic"
Mount Type:
Price History:



Add Review of Pentacon 135mm f2.8 Auto MC
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Sort Reviews by: Date | Author | Rating | Recommendation | Likes (Descending) Showing Reviews 1-7 of 7
New Member

Registered: January, 2017
Posts: 3
Lens Review Date: January 27, 2017 I can recommend this lens: Yes | Price: $30.00 | Rating: 8 

 
Pros: Solid, metal
Cons: Handling, soft at full aperture
Sharpness: 8    Aberrations: 8    Bokeh: 9    Handling: 6    Value: 8    Camera Used: Lumix GX-80   

My copy is the second edition (electric, 6 blades) in bad shape. The optic elements are scretched and The diaphragm is in bad shape too and a bit rusty so the aperture modification is not instantaneous when closing it. I must wait 1 or 2 seconds for the diaphragm to close at the chosen aperture. The scratches don't seem to affect IQ.

The focus ring is a bit hard but still useable.

At full aperture the image is a bit soft but still decent. I'd like to try out one in good shape though (the 15 blades one).

The bokeh is very nice.

Lumix GX-80 - @ f/2.8
   
New Member

Registered: September, 2016
Posts: 1

1 user found this helpful
Lens Review Date: September 9, 2016 I can recommend this lens: No | Price: $10.00 | Rating: 6 

 
Pros: glass/metal body, sharp stopped down
Cons: Soft wide-open,
Sharpness: 7    Aberrations: 4    Bokeh: 6    Handling: 9    Value: 8    Camera Used: Pentax K5 Sigma sd14   

..
   
New Member

Registered: November, 2013
Posts: 5
Lens Review Date: March 22, 2016 I can recommend this lens: No | Price: $35.00 | Rating: 4 

 
Pros: glass/metal body
Cons: not so sharp, poor CA's
Sharpness: 4    Aberrations: 4    Bokeh: 5    Handling: 7    Value: 4    Camera Used: k-x k200   

the exterior of this lens is very beautifull, but the optical qualities were not sufficient for me.

could be, that it was an error in production, but I opened it and there was no way to improve the
performance

disappointing for me. I regret
   
Pentaxian

Registered: July, 2014
Location: Paris
Posts: 1,816
Lens Review Date: November 2, 2014 I can recommend this lens: Yes | Price: None indicated | Rating: 8 

 
Pros: cheap, sharp stopped down
Cons: handling, m42
Sharpness: 8    Aberrations: 8    Bokeh: 9    Handling: 6    Value: 8   

A good lens, but it's not easy to use because of the M42 mount, maybe my sample is too old, the focus ring is stiff and somtimes I unscrew the lens by accident while turning the focus ring
IQ : is sharp enough at 2.8, a lot better stopped down
   
Pentaxian

Registered: September, 2013
Location: Toronto
Posts: 1,328
Lens Review Date: March 10, 2014 I can recommend this lens: No | Price: $50.00 | Rating: 6 

 
Pros: Inexpensive, fast-ish 135mm (compared to other m42-era 135s), corners are good compared to other Pentacon lenses
Cons: Soft wide-open, flare
Sharpness: 6    Handling: 8    Camera Used: K-30, K20D   

Disclaimer: my copy is the "electric" version. Optically it's the same as the "auto" version, merely adding contacts for open-aperture metering on some cameras (e.g. the Praktica LLC).

A cheap enough lens. Solidly built. f2.8 is faster than many other inexpensive 135mm primes, but the lens is somewhat soft wide open and you'll need to stop it down a bit before you get a sharp photo. Given the usual price of these compared to the SMC 135/3.5 Tak and the need to stop it down, you're probably better off going with the Tak.

Built-in hood, but it's not quite deep enough. (Though better than the one on the Pentacon 4/200, which is practically useless.)

f2.8:
Music by Andrew, on Flickr

30/30(b): In the Orange (Crop) by Andrew, on Flickr

Unknown apertures:
Track Work by Andrew, on Flickr

16/30: Squeeze Box by Andrew, on Flickr

Takaakira Goto by Andrew, on Flickr
   
Site Supporter

Registered: April, 2011
Location: Lost in translation ...
Posts: 16,445
Lens Review Date: September 2, 2013 I can recommend this lens: Yes | Price: None indicated | Rating: 7 

 
Pros: f2.8, long focus throw, decent build, A/M switch ...
Cons: Not super sharp until stopped down, M42 ...
Sharpness: 8    Aberrations: 7    Bokeh: 6    Handling: 7    Value: 8   

Bonjour,

Optically, this lens is only average and must be stopped down before becoming acceptably sharp. I have a Prakticar version of this same lens (Dremel modified to PK fit - https://www.pentaxforums.com/userreviews/prakticar-pentacon-135mm-f2-8-mc-modified-pk-fit.html , but I do not know if they are identical in their optics, etc. The Prakticar does better than its possible M42 ancestor ... sample images may come later.

Salut, John le Frog
   
Junior Member

Registered: October, 2010
Location: Berlin
Posts: 33
Lens Review Date: October 16, 2010 I can recommend this lens: Yes | Price: $30.00 | Rating: 6 

 
Pros: nice bokeh, good colour rendition, cheap
Cons: weight, size, not as sharp as others

This was my first 135 but I never really became familiar with it. It is too heavy and not as sharp as my Vivitar 135/2,8. Bokeh is superb, even though I have the six-blade version of this lens, so it might be a good choice for portrait work. Overall it's quite good but there are better choices out there for the same money I think.
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