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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 
10 188
  Current Prime Lenses 
6 53
  Legacy Zoom Lenses (4 viewing)
96 817
  Legacy Prime Lenses (1 viewing)
55 351
Tamron Lenses
  Current Zoom Lenses (1 viewing)
7 331
  Current Prime Lenses 
1 52
  Legacy Zoom Lenses 
16 148
  Legacy Prime Lenses 
14 53
Tamron Adaptall Lenses
  Zoom Lenses (2 viewing)
42 166
  Prime Lenses (2 viewing)
26 160
  Adaptall Adapters 
Adapters that enable the use of Tamron Adaptall lenses on Pentax cameras.
6 9
Samsung Lenses
  Prime Lenses 
2 3
  Zoom Lenses 
6 7
Lensbaby Lenses
  Prime Lenses 
7 6
Schneider-Kreuznach Lenses
  Prime Lenses 
5 1
  Zoom Lenses 
4 10
Tokina Lenses
  Prime Lenses 
17 108
  Zoom Lenses (2 viewing)
56 254
Samyang Lenses
  Prime Lenses (3 viewing)
16 131
Vivitar Lenses
  Zoom Lenses (2 viewing)
36 187
  Prime Lenses (2 viewing)
53 256
Cosina Lenses
  Zoom Lenses 
9 31
  Prime Lenses (2 viewing)
22 63
Ricoh Lenses
  Prime Lenses (1 viewing)
26 109
  Zoom Lenses 
12 26
Carl Zeiss Lenses
  Prime Lenses (1 viewing)
32 136
Quantaray Lenses
  Zoom Lenses (1 viewing)
11 45
Russian and Zenitar Lenses
  Prime Lenses (4 viewing)
46 282
Voigtlander Lenses
  Prime Lenses 
10 69
Miscellaneous Lenses
  Zoom Lenses (1 viewing)
102 150
  Prime Lenses (3 viewing)
277 697
  Teleconverters (All Brands) 
39 144

Recent Products
Tokina 35-70mm F3.5-4.8 A Macro review
Tokina 35-70mm F3.5-4.8 A Macro
Bower 200mm F4.5 review
Bower 200mm F4.5
Fujinon 55mm F2.2 review
Fujinon 55mm F2.2
Osawa 80-200mm F4.5 review
Osawa 80-200mm F4.5
Adaptall 018F 1:1 extension tube for 52B/52BB 90mm macro review
Adaptall 018F 1:1 extension tube for 52B/52BB 90mm macro
Fuji (Fujinon) 35mm f/1.9 EBC review
Fuji (Fujinon) 35mm f/1.9 EBC
Zeiss Distagon T 35mm F/1.4 Lens review
Zeiss Distagon T 35mm F/1.4 Lens
Tokina ?SZ-X 80-200mm f4.5  (PKA mount) review
Tokina ?SZ-X 80-200mm f4.5 (PKA mount)
Sun OPT. (Sun Optics) 135mm 3.5 / 13.5cm f/3.5  - Sun Telephoto 13.5cm f/3.5 review
Sun OPT. (Sun Optics) 135mm 3.5 / 13.5cm f/3.5 - Sun Telephoto 13.5cm f/3.5
Tokina 70-200mm F 1:4.5-5.6 review
Tokina 70-200mm F 1:4.5-5.6

Most Popular Lenses
KMZ Helios 44-2 58mm F/2 review
KMZ Helios 44-2 58mm F/2
Tamron AF 17-50mm F2.8 XR LD Aspherical IF SP Di II review
Tamron AF 17-50mm F2.8 XR LD Aspherical IF SP 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
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
Vivitar (komine) Auto Telephoto 135mm F2.8 review
Vivitar (komine) Auto Telephoto 135mm F2.8
Carl Zeiss Jena 50mm F2.8 Tessar review
Carl Zeiss Jena 50mm F2.8 Tessar
Sigma 24mm F2.8 Super Wide II review
Sigma 24mm F2.8 Super Wide II

Random Lenses
Lenmar RX-7 85-210mm f4.5 review
Lenmar RX-7 85-210mm f4.5
LZOS Jupiter-9 MC 85mm f/2 M42 review
LZOS Jupiter-9 MC 85mm f/2 M42
Sigma 24-60mm F2.8 EX DG review
Sigma 24-60mm F2.8 EX DG
Sigma 17-50mm F2.8 EX DC OS HSM review
Sigma 17-50mm F2.8 EX DC OS HSM
Tamron Adaptall-2 35-70mm f/3.5-4.5 (09A) review
Tamron Adaptall-2 35-70mm f/3.5-4.5 (09A)

Statistics
Pentax Lenses: 1,067 | Total Reviews: 5,043 | Views: 20,345,291
Users browsing the lens reviews: 36 unregistered users
 
Recent Reviews
Pentax Review RSS Feed
Vivitar (komine) Auto Telephoto 135mm F2.8 Review
Vivitar_135mm_prime_f-2_8.jpg
To put it simply... Good image and build quality with amazing value. I own two versions of this lens - both in M42 mount. The older has a metal focus grip and five elements. The newer has a rubber focus grip and 4 elements. I can't see any significant image quality difference between them, but I'd...
Rating: 8 | Recommended: Yes Read More
TAIR-3S 300mm F4.5 - Fotosniper 12 ensemble Review
IGP4329_s_.JPG
I purchased mine without the pistol grip sniper mount for US 200 in Argentina. It is a very good lens for astrophoto. I put it over the Star Adventurer mount and with the QHY5IIL guide camera and take this photo of Omega Centauri (ω Cen or NGC 5139). 150 lights, 50 darks, 2.4 sec.
Rating: 9 | Recommended: Yes Read More
Tokina ( SL17 / RMC ) 17mm f/3.5 Review
sl17.jpg
An absolute joy of a lens to use, great build quality, nice and lightweight Res ults are super sharp
Rating: 10 | Recommended: Yes Read More
Tamron AF 17-50mm F2.8 XR LD Aspherical IF SP Di II Review
SHOT6248.JPG
I may have received a abnormal copy but the AF was very poor. I initially thought it was front focusing so I did a FF test and the results were all over the place. I did the battery test and used a tripod and could not get consistent results even in a very well lit situation. Using the lens in re...
Rating: 7 | Recommended: Yes Read More
Samyang 12mm F2.8 ED AS NCS FISH-EYE Review
samyang_12mm-f2_8_fisheye_PF-side-pentax.jpg
:lol: big torsions - naturally for a 12mm lens:o - this is still okay sharpness of my item is not so dramaticaly good: I must stop down to f 8-11, in order to get sharp pictures just up to the extreme corners. :eek: I suppose, that my lens has been decentered still by factory. I.e. it is sharper o...
Rating: 5 | Recommended: Yes Read More
Sigma 170-500mm F5-6.3 APO Review
Sigma_170-500mm_telephoto_pentax.jpg
This lens can give good results with a bit of practice & patience. Up to 300mm the performance is comparable to an HD 55-300 but soft beyond. I prefer hand held to a tripod & have found that using TAv mode (1/2000; f8 up to 300mm & 1/2000, f9.5 beyond) in bright light gives the best results. The ISO...
Rating: 8 | Recommended: Yes Read More
Tokina ?SZ-X 80-200mm f4.5 (PKA mount) Review
tokina80-200-45-1.jpg
very similar to the lens Tokina 4/80-200 the same 12/9 elements construction:) a good performer with macro ring, too stopped down to 5,6-11 really very sharp good color rendition high contrast 8,5 points
Rating: 9 | Recommended: Yes Read More
Sigma 150-500mm F5-6.3 APO DG OS HSM Review
682777.jpg
A heavy beast but I knew that when I ordered it used from Japan. I try to use it mostly on a monopod where I often use the OS on setting #1 I find the auto focus to be very accurate but quite slow. Not too good for sports action but OK for most other purposes. The zoom setting will not stay set if ...
Rating: 8 | Recommended: Yes Read More
Tamron Adaptall-2 35-135mm f/3.5-4.2 (22A) Review
35-135_22A.jpg
It is a horrible day here in Cheshire, really cloudy,dull and raining. Not the best day for taking pics. So I decided to visit the Avro Heritage Museum in Cheshire and take some pictures of the Vulcan Bomber now it is back in the original white livery Tamron D2 22A used to capture these - once a...
Rating: 8 | Recommended: Yes Read More
Tokina RMC / SMZ105 35-105mm F3.5-4.3 Review
Tokina_Front_View.jpg
I've only had this lens for a couple of weeks, but I'm amazed at its quality. In my opinion, this would be a superb walk-around lens. The second image is a crop of the first, the top of the left pylon, with no additional PP. The photo was taken handheld at 105mm or close to it, 1/100 second, f8. M...
Rating: 10 | Recommended: Yes Read More



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