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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 (2 viewing)
10 228
  Current Prime Lenses (1 viewing)
6 62
  Legacy Zoom Lenses (3 viewing)
98 877
  Legacy Prime Lenses (2 viewing)
58 380
Tamron Lenses
  Current Zoom Lenses (2 viewing)
5 309
  Current Prime Lenses 
1 55
  Legacy Zoom Lenses (1 viewing)
19 207
  Legacy Prime Lenses 
18 58
Tamron Adaptall Lenses
  Zoom Lenses (2 viewing)
42 181
  Prime Lenses (1 viewing)
26 178
  Adaptall Adapters 
Adapters that enable the use of Tamron Adaptall lenses on Pentax cameras.
8 14
Samyang Lenses
  Prime Lenses (3 viewing)
16 162
Lensbaby Lenses
  Prime Lenses 
13 6
Venus Laowa Lenses
  Current Prime Lenses 
6 7
Tokina Lenses
  Prime Lenses (2 viewing)
22 130
  Zoom Lenses (1 viewing)
58 282
Samsung Lenses
  Prime Lenses 
2 3
  Zoom Lenses 
6 9
Schneider-Kreuznach Lenses
  Prime Lenses 
6 3
  Zoom Lenses 
4 10
Vivitar Lenses
  Zoom Lenses (1 viewing)
39 213
  Prime Lenses (4 viewing)
56 279
Cosina Lenses
  Zoom Lenses (1 viewing)
11 39
  Prime Lenses 
23 77
Ricoh Lenses
  Prime Lenses (1 viewing)
26 124
  Zoom Lenses 
12 29
Carl Zeiss Lenses
  Prime Lenses (1 viewing)
34 164
Quantaray Lenses
  Zoom Lenses 
11 47
Russian and Zenitar Lenses
  Prime Lenses (4 viewing)
49 322
Voigtlander Lenses
  Prime Lenses (1 viewing)
10 80
Miscellaneous Lenses
  Zoom Lenses (2 viewing)
110 177
  Prime Lenses (9 viewing)
312 808
  Teleconverters (All Brands) (1 viewing)
43 154

Recent Products
Tamron 100-300 f5-6.3  Model: 86D review
Tamron 100-300 f5-6.3 Model: 86D

Tokina RMC 400mm f5.6

Accura LensXtender 2X AUTO for Pentax M42 mount
Kenko APS Auto Teleplus 2x review
Kenko APS Auto Teleplus 2x
Rexagon 28mm f2.8 Wide Angle Super Coated review
Rexagon 28mm f2.8 Wide Angle Super Coated
Focal 28mm f2.8 MC Auto review
Focal 28mm f2.8 MC Auto
Tele-Tokina /T600 / Vivitar 600mm f8 preset review
Tele-Tokina /T600 / Vivitar 600mm f8 preset
Irix 150mm F2.8 Macro 1:1 review
Irix 150mm F2.8 Macro 1:1
Opteka 0.2x Fisheye adapter review
Opteka 0.2x Fisheye adapter
Helios 28mm f2.8 soviet lens review
Helios 28mm f2.8 soviet lens

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
Tamron 70-300mm F4-5.6 AF Di LD Macro review
Tamron 70-300mm F4-5.6 AF Di LD Macro
Sigma 10-20mm F4-5.6 EX DC J review
Sigma 10-20mm F4-5.6 EX DC J
Sigma 24mm F2.8 Super Wide II review
Sigma 24mm F2.8 Super Wide II

Random Lenses
Chinon Auto 55mm 1:1,7 M42 review
Chinon Auto 55mm 1:1,7 M42
Vivitar 2x Automatic Tele Converter (M42) review
Vivitar 2x Automatic Tele Converter (M42)
Sigma 18-300mm F3.5-6.3 DC Macro HSM (Contemporary) review
Sigma 18-300mm F3.5-6.3 DC Macro HSM (Contemporary)
Sigma 70-210mm 4-5.6 AF-K (ZOOM-K) review
Sigma 70-210mm 4-5.6 AF-K (ZOOM-K)
Tamron Adaptall-2 SP 90mm f/2.5 (52B/52BB) review
Tamron Adaptall-2 SP 90mm f/2.5 (52B/52BB)

Statistics
Pentax Lenses: 1,160 | Total Reviews: 5,674 | Views: 27,765,776
Users browsing the lens reviews: 51 unregistered users
 
Recent Reviews
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Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II Review
SHOT6248.JPG
I love this lens and can't believe I got it on Craigslist for only $70 last year and only needed to add a lens hood for $15 more. The image quality is top-notch but the build quality is shaky. The zoom mechanism was a little loose and would not register an accurate focal length on the camera whe...
Rating: 9 | Recommended: Yes Read More
Kalimar 18-28mm f4-4.5 MC, Auto, Zoom Review
IGP2588.JPG
Pentax P30T, Centon 18-28mm F4-4.5, Fuji Velvia. The shot was taken wide open and hand-held and was cropped to panoramic format to remove all the vignetting at the corners. Thi s was a review I wrote for photo.net quite a few years back. My version of this lens was a Centon 18-28mm F4.0-4.5 ...
Rating: 7 | Recommended: Yes Read More
Irix 150mm F2.8 Macro 1:1 Review
Irix_150mm_F28_Macro_3-768x432.jpg
Handling: Handles very well on a K-1 and feels perfectly balanced. Manual focussing is a pleasure, very smooth and precise. Sharpn ess: Excellent sharpness from f 5,6 to f 11 in the whole range from infinity to 1:1 (Sharpness is comparable to DFA 100). Sharpness at f 2,8 is acceptab...
Rating: 10 | Recommended: Yes Read More
Tamron 100-300 f5-6.3 Model: 86D Review
25720-IMG-5063.JPG
A terrific find bundled with another lens I was actually wanting. The Good: Sharp, accurate and fast AF on my K5IIs, a bit slower on the K100D. Smooth zoom throw. Good included hood. Very good color rendition. Ligh t and easy to carry around. A bargain. The Bad: Limited range (100 is a LOT lo...
Rating: 8 | Recommended: Yes Read More
Cosina 28mm f/2.8 MC MACRO Review
IMGP6575.JPG
+ sharp lens with few CA's + high contrast und good color rendition a good lens !
Rating: 9 | Recommended: Yes Read More
Carl Zeiss Jena Sonnar MC 135mm, f3.5 Review
CZ01.jpg
++ very sharp lens + high contrast ++ nertral color rendition + few CA's wide open for macro shootings with macro tubes ! 9.5 points:)
Rating: 10 | Recommended: Yes Read More
Tamron SP AF 90mm F2.8 Di Macro Review
1_Tamron_SP_Di_90mm_Macro.jpg
I shot this lizard in Barbados. This has been cropped by about 50% and sharpened and had the WB altered automatically. It shows the detail you can expect even if you only half fill the frame with the subject. Original file was 14+mb. More detail than can be seen in this version reduced during upload...
Rating: 9 | Recommended: Yes Read More
Tokina RMC 400mm f5.6 Review
I bought a K-1 whilst using a Nikon D3300 with a Sigma 300mm APO which I really liked. I was trying to photograph quite a few birds in flight and found the autofocus "hunting" a fain so, in some respects, I don't really miss the autofocus on the RMC Tokina. It's not fast, it's not forgiving but y...
Rating: 7 | Recommended: Yes Read More
Sigma 10-20mm F3.5 EX DC HSM Review
sg10203_5a.jpg
Purchased used, I find this lens an excellent value. Handles very well, with crisp autofocus and clarity (especially in the center). There is some slight distortion at the corners when shooting wide, but it's not a big issue. I found that learning to compose my shots with it took some time. I am typ...
Rating: 9 | Recommended: Yes Read More
Meyer-Optik Görlitz Orestegor / Pentacon 200mm F4 Review
orestegor200.jpg
++ wonderfull lens with very high sharpness ++/+ scareceley visible CA's ++ high contrast and very nice neutral color rendition high ly recommended
Rating: 10 | Recommended: Yes Read More



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