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Welcome to the Third-Party Pentax Lens Review Database!
This database contains reviews and technical data on third-party lenses (made by Sigma, Tamron, etc.) designed for use with Pentax K-Mount DSLRs and film SLRs. In addition to being able to post lens reviews, users can also add new lenses to this database.

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In-Depth Pentax Lens Reviews

Category Lenses Reviews
Sigma Lenses
  Current Zoom Lenses 
10 217
  Current Prime Lenses 
6 58
  Legacy Zoom Lenses (9 viewing)
98 853
  Legacy Prime Lenses (2 viewing)
58 366
Tamron Lenses
  Current Zoom Lenses (3 viewing)
5 302
  Current Prime Lenses 
1 54
  Legacy Zoom Lenses (2 viewing)
18 199
  Legacy Prime Lenses (2 viewing)
17 58
Tamron Adaptall Lenses
  Zoom Lenses (3 viewing)
42 181
  Prime Lenses (4 viewing)
26 172
  Adaptall Adapters 
Adapters that enable the use of Tamron Adaptall lenses on Pentax cameras.
8 13
Samyang Lenses
  Prime Lenses (2 viewing)
16 154
Lensbaby Lenses
  Prime Lenses 
12 6
Venus Laowa Lenses
  Current Prime Lenses 
6 6
Tokina Lenses
  Prime Lenses (2 viewing)
19 122
  Zoom Lenses (6 viewing)
58 270
Samsung Lenses
  Prime Lenses 
2 3
  Zoom Lenses (1 viewing)
6 8
Schneider-Kreuznach Lenses
  Prime Lenses 
6 2
  Zoom Lenses 
4 10
Vivitar Lenses
  Zoom Lenses (4 viewing)
39 206
  Prime Lenses (2 viewing)
56 271
Cosina Lenses
  Zoom Lenses 
11 38
  Prime Lenses (3 viewing)
23 75
Ricoh Lenses
  Prime Lenses (1 viewing)
26 119
  Zoom Lenses 
12 29
Carl Zeiss Lenses
  Prime Lenses (3 viewing)
34 157
Quantaray Lenses
  Zoom Lenses 
11 46
Russian and Zenitar Lenses
  Prime Lenses (11 viewing)
47 308
Voigtlander Lenses
  Prime Lenses (1 viewing)
10 78
Miscellaneous Lenses
  Zoom Lenses (4 viewing)
108 169
  Prime Lenses (8 viewing)
298 764
  Teleconverters (All Brands) 
40 151

Recent Products
Canon FL 55mm F1.2 review
Canon FL 55mm F1.2

KONICA 135mm F3,2

KONICA 85mm F1,8

KONICA 50mm F1,4

KONICA 57mm F1,4
Cosina Cosinon-C 50mm F1.4 review
Cosina Cosinon-C 50mm F1.4
Soligor / Cunor et al... 350mm f5.6 review
Soligor / Cunor et al... 350mm f5.6
Olympus Zuiko 50mm 3.5 Macro review
Olympus Zuiko 50mm 3.5 Macro
Yashica Yashinon-DX 500mm f/5 Reflex review
Yashica Yashinon-DX 500mm f/5 Reflex
Venus Optics Laowa 25mm F2.8 2.5-5x Ultra Macro review
Venus Optics Laowa 25mm F2.8 2.5-5x Ultra Macro

Most Popular Lenses
Helios 44-2 58mm F/2 review
Helios 44-2 58mm F/2
Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II review
Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II
Tamron 70-200mm F2.8 Di LD Macro review
Tamron 70-200mm F2.8 Di LD Macro
Tamron 28-75mm F2.8 AF XR Di LD Macro SP review
Tamron 28-75mm F2.8 AF XR Di LD Macro SP
Tamron SP AF 90mm F2.8 Di Macro review
Tamron SP AF 90mm F2.8 Di Macro
Carl Zeiss Jena 50mm F2.8 Tessar review
Carl Zeiss Jena 50mm F2.8 Tessar
Vivitar (komine) Auto Telephoto 135mm F2.8 review
Vivitar (komine) Auto Telephoto 135mm F2.8
Sigma 10-20mm F4-5.6 EX DC J review
Sigma 10-20mm F4-5.6 EX DC J
Tamron 70-300mm F4-5.6 AF Di LD Macro review
Tamron 70-300mm F4-5.6 AF Di LD Macro
Sigma 24mm F2.8 Super Wide II review
Sigma 24mm F2.8 Super Wide II

Random Lenses
Tokina AF SD 28-70mm f3.5-4.5 review
Tokina AF SD 28-70mm f3.5-4.5
Vivitar Series 1 70-210mm f/3.5 (Version 2) - made by Tokina review
Vivitar Series 1 70-210mm f/3.5 (Version 2) - made by Tokina
Miranda 28mm, f2.8 MC review
Miranda 28mm, f2.8 MC
Vivitar 2x Automatic Tele Converter (M42) review
Vivitar 2x Automatic Tele Converter (M42)
Mir-1 (Mir-1A, Mir-1B, Mir 1V) 37mm F2.8 review
Mir-1 (Mir-1A, Mir-1B, Mir 1V) 37mm F2.8

Statistics
Pentax Lenses: 1,133 | Total Reviews: 5,465 | Views: 25,932,274
Users browsing the lens reviews: LennyBloke and 81 unregistered users
 
Recent Reviews
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Carl Zeiss Jena Sonnar MC 135mm, f3.5 Review
CZ01.jpg
Tried four copies of the lens: two had stuck diaphragm blades, one had fungus and the last one had been dismantled and was unacceptably dusty. Finally found mine, but I paid the price. Build quality is ok if you find a good one. The lens is quite small. It's sharp with good bokeh even if only f/3,5....
Rating: 9 | Recommended: Yes Read More
Mamiya Auto Mamiya/Sekor 55mm f/1.8 (M42) Review
IMGP0343.jpg
Had the chance to bought it for a decent price but unfortunately it was the SX version. Lens is sharp with good bokeh and nice colors, build quality seems serious, but was not able to focus to infinity. Tried to modify my adapter but it didn't work. Finally ended up selling it... I think it's worth ...
Rating: 8 | Recommended: Yes Read More
Pentacon 50mm f1,8 auto multi coating Review
R0032759.JPG
Bought this lens "by accident"... It was in bad conditions, focus ring was very stiff. But I tried it and liked the results so much that I bought another one. I only used it on a micro 4/3 camera because I wanted to play with the good minimal focus distance, it's funny on a 50mm but really amazing o...
Rating: 8 | Recommended: Yes Read More
Tamron Adaptall-2 35-135mm f/3.5-4.2 (22A) Review
35-135_22A.jpg
I picked this up with an Olympus OM10 for $25 so the actual lens was cheaper. The iris seemed a little sticky at first but some exercise seems to have loosened it up. Focussing seems easy and it has a sort of macro available at 135mm that is easy to facilitate. Unf ortunately, for me, it is not as ...
Rating: 7 | Recommended: Yes Read More
Voigtlander Nokton 58mm F1.4 Review
CV_58_SLII.jpg
I think this became my favorite lens ever ! Bought my first one to use as a 85mm equivalent on an APS-C camera... and sold it. It was sharp, nice to use, smooth bokeh, but I felt nothing special. Finally found a good deal on a second hand one and bought it again for my new Sony A7... And even if my ...
Rating: 10 | Recommended: Yes Read More
Voigtlander 40mm F/2 Ultron SLII Review
40mmSL_small.jpg
This is my second favorite lens behind the Voigtlander 58mm f/1,4 Nokton, and probably my most used since I got it. The lens is beautifully made, even if less compact when adding adapter. Handling is great. 40mm focal lenght with close focus abilities is very useful and versatile on full frame. Shar...
Rating: 9 | Recommended: Yes Read More
Voigtländer 75mm F 2.5 SL COLOR-HELIAR Review
75SL.JPG
Tried this lens briefly but I finally did not keep it due to odd focal lenght. It's really small and nicely made. Handling is pure pleasure, as usual with Voigtlander. Sharpness is good even wide open, a bit of chromatic aberrations but it's not a major issue. Bokeh looks good, even if not as smooth...
Rating: 8 | Recommended: Yes Read More
Tamron Adaptall-2 SP 90mm f/2.5 (52B/52BB) Review
tamron90mm_SP.jpg
Had two samples of this lens. The first one had been used and probably abused, it was good but with a noticeable lack of contrast. The new one is almost mint and performs much better. Love the fact that an adaptall lens can fit every camera mount, even if the adapters are usually expensive and somet...
Rating: 9 | Recommended: Yes Read More
MIR-47M / 47K 20mm f2.5 Review
mir-47m.jpg
I like the lens - but will not rate it, as I don´t really know how good a lens must be to get a certain rating. I like it so much that I liked to put a protective UV-filter on it - which the lack of a thread for filters makes rather difficult. I still bought a 82 mm Hoya UV - turned it around so t...
Rating: N/A | Recommended: Yes Read More
Tamron SP AF 90mm F2.8 Di Macro Review
1_Tamron_SP_Di_90mm_Macro.jpg
This Tamron lens is very very good optically (surely by far the most important aspect of any lens) ! Sharpness is wonderful and out of focus areas are smooth and I like them a lot ! AF speed (on Pentax K-70) is ok, it hunts sometimes but AF noise is horrendous )-: MF is easy enough to implement (p...
Rating: 8 | Recommended: Yes Read More



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