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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 
3 58
  Current Prime Lenses 
3 55
  Legacy Zoom Lenses (5 viewing)
112 1,187
  Legacy Prime Lenses (2 viewing)
65 443
Irix Lenses
  Prime Lenses 
8 36
Tamron Lenses
  Zoom Lenses (1 viewing)
27 558
  Prime Lenses 
20 129
Tamron Adaptall Lenses
  Zoom Lenses (3 viewing)
42 212
  Prime Lenses (1 viewing)
26 213
  Adaptall Adapters 
Adapters that enable the use of Tamron Adaptall lenses on Pentax cameras.
9 19
Samyang Lenses
  Prime Lenses 
16 203
Lensbaby Lenses
  Prime Lenses 
13 8
Venus Laowa Lenses
  Prime Lenses 
9 15
Tokina Lenses
  Prime Lenses (2 viewing)
23 148
  Zoom Lenses 
60 330
Samsung Lenses
  Prime Lenses 
3 4
  Zoom Lenses 
6 12
Schneider-Kreuznach Lenses
  Prime Lenses 
6 4
  Zoom Lenses 
4 10
Vivitar Lenses
  Zoom Lenses (2 viewing)
43 267
  Prime Lenses (1 viewing)
63 333
Cosina Lenses
  Zoom Lenses 
12 47
  Prime Lenses 
23 96
Ricoh Lenses
  Prime Lenses (1 viewing)
27 141
  Zoom Lenses 
14 32
Carl Zeiss Lenses
  Prime Lenses (2 viewing)
34 196
Quantaray Lenses
  Zoom Lenses 
12 51
Russian and Zenitar Lenses
  Prime Lenses (1 viewing)
53 365
Voigtlander Lenses
  Prime Lenses (2 viewing)
12 87
Yashica Lenses
  Prime Lenses (1 viewing)
11 24
Soligor Lenses
  Prime Lenses (1 viewing)
34 68
  Zoom Lenses 
15 32
Chinon Lenses
  Prime Lenses (1 viewing)
20 88
  Zoom Lenses 
7 12
Fujinon Lenses
  Prime Lenses 
7 27
Miscellaneous Lenses
  Zoom Lenses (1 viewing)
103 182
  Prime Lenses (7 viewing)
290 800
  Teleconverters (All Brands) 
43 167

Recent Products

Tokina 100mm
Primotar 180mm f3,5 review
Primotar 180mm f3,5
Chinon 28mm f2,8 Auto Chinon review
Chinon 28mm f2,8 Auto Chinon
Auto Revuenon 35mm F/2.8 review
Auto Revuenon 35mm F/2.8
Photax-Paragon 135mm f2.8 review
Photax-Paragon 135mm f2.8
Osawa / Bell & Howell macro / non-macro 35-70mm F3.5-4.5 review
Osawa / Bell & Howell macro / non-macro 35-70mm F3.5-4.5
Sigma AF Zoom-eta Multicoated 28-200mm F4-5.6 review
Sigma AF Zoom-eta Multicoated 28-200mm F4-5.6
Sigma APO Macro (1994-2000) 70-300mm F4-5.6 review
Sigma APO Macro (1994-2000) 70-300mm F4-5.6
Venus Optics Laowa 15mm F4.5R Zero-D Shift review
Venus Optics Laowa 15mm F4.5R Zero-D Shift
Sigma AF-APO 70-210mm F3.5-4.5 review
Sigma AF-APO 70-210mm F3.5-4.5

Most Popular Lenses
Helios 44-2 58mm F2 review
Helios 44-2 58mm F2
Tamron Di LD Macro 70-200mm F2.8 review
Tamron Di LD Macro 70-200mm F2.8
Tamron SP AF XR LD Aspherical IF Di II 17-50mm F2.8 review
Tamron SP AF XR LD Aspherical IF Di II 17-50mm F2.8
Tamron AF XR Di LD Macro SP 28-75mm F2.8 review
Tamron AF XR Di LD Macro SP 28-75mm F2.8
Carl Zeiss Jena Tessar 50mm F2.8 review
Carl Zeiss Jena Tessar 50mm F2.8
Vivitar (komine) Auto Telephoto 135mm F2.8 review
Vivitar (komine) Auto Telephoto 135mm F2.8
Tamron SP AF Di Macro (272E) 90mm F2.8 review
Tamron SP AF Di Macro (272E) 90mm F2.8
Sigma Super Wide II 24mm F2.8 review
Sigma Super Wide II 24mm F2.8
Tamron AF Di LD Macro 70-300mm F4-5.6 review
Tamron AF Di LD Macro 70-300mm F4-5.6
Sigma EX DC J 10-20mm F4-5.6 review
Sigma EX DC J 10-20mm F4-5.6

Random Lenses
Soligor chrome -eared, t-mount 135mm F3.5 review
Soligor chrome -eared, t-mount 135mm F3.5
Starblitz / Clubman / Paragon / Ensinor ... AUTO M 28mm F2.8 review
Starblitz / Clubman / Paragon / Ensinor ... AUTO M 28mm F2.8
Sigma Macro 90mm F2.8 review
Sigma Macro 90mm F2.8
Tamron AF XR Di LD Macro SP 28-75mm F2.8 review
Tamron AF XR Di LD Macro SP 28-75mm F2.8
CHINON M42 - manual Focus Lens 35mm F2.8 review
CHINON M42 - manual Focus Lens 35mm F2.8

Statistics
Pentax Lenses: 1,278 | Total Reviews: 6,659 | Views: 40,909,278
Users browsing the lens reviews: Griffart, sculptor666 and 35 unregistered users
 
Recent Reviews
Pentax Review RSS Feed
Sigma EX DG Macro 24-70mm F2.8 Review
Sigma_EX_DG_24-70mm_F28.jpg
As I like to use my lenses with both film and full-frame digital cameras, I've been looking for a good standard zoom with an aperture ring. This lens has one, although it doesn't look like it on the product image on this page. So when it showed up on Ebay for around 100 €, I gave it a try. When I...
Rating: 7 | Recommended: No Read More
Sigma EX DG APO Macro HSM II 70-200mm F2.8 Review
555141.jpg
I have two samples. One is my beloved one which I bought cca in 2009 as slightly used. 2nd one is backup since my first lens developed some AF disease over time. I started using this lens on K20D and later I added K5 and K3. With K20D everything worked well, because that camera had no live-view con...
Rating: 9 | Recommended: Yes Read More
Tamron Di LD Macro 70-200mm F2.8 Review
tammy_70-200_crop.jpg
While having Sigma 70-200/2.8 HSMII for many years, it developed some AF disease and it usualy takes few minutes to warm up the AF motor to work properly. So I got mysel a backup lens until it will be serviced. This Tamron 70-200/2.8. And I'm pleased by the image output which is in some cases maybe ...
Rating: 9 | Recommended: Yes Read More
Irix 21mm F1.4 Dragonfly Review
Irix_21mm_F1_4_stockxh800.jpg
General impression: with K1 it has good handling balance, but in general its big and heavy lens. Lens comes with very practical bag, bag is a bit solid it will make a good protection for lens. Build quality very good, lens is robust, except front lens cap. I have no idea how front cap could be so...
Rating: 4 | Recommended: No Read More
Meyer-Optik Gorlitz Trioplan 100mm F2.8 Review
Meyer-Optik-Trioplan-small-800pix.jpg
First, one can find sharper lenses for the price. 125mm Zeiss Sonnar (appr. 100$) for example works much more accurate. Sharpness and contrast are quite low. But there is only the Meyer Görlitz with the special dreamy look and this exceptionell bokeh. If youre looking for this very special gem - you...
Rating: 8 | Recommended: Yes Read More
Sigma XQ Filtermatic Multi-Coated 24mm F2.8 Review
Sigma24_front.jpg
This a strange lens, the idea is nice, integrate filters in a lens but the ergonomics are poor and optical quality too. Filters prone to opacity with age. Fun to use, but very poor results. I got mine for free in a bulk of photo stuffs but happy not to pay for it.
Rating: 6 | Recommended: No Read More
Tokina AT-X SD 80-200mm F2.8 Review
sdsc02741.jpg
I really wanted this lens to be sharper than my Tokina AT-X SD 100-300 F4 but disappointingly it is not. It is quite soft at F2.8 and gets better by F4. At F5.6 it is very sharp. My Tokina AT-X SD 100-300 F4 is actually sharper at F4 than this lens. But by the time you get to F5.6 both lenses are eq...
Rating: 8 | Recommended: Yes Read More
Industar-50 50mm F3.5 Review
1256911299_resized.jpg
I'm reviewing the black (with white or green numbering) 50-2 M42 lens. These can come in gloss black or satin black finishes with minor external measurement variations due to factory manufacturing differences. Firstly, this is certainly not a "pancake" lens as pancakes are flat and pancake lenses ar...
Rating: 8 | Recommended: Yes Read More
Tamron Adapt-A-matic/fixed mount Auto 135mm F2.8 Review
GGW_8188.JPG
I have the Auto-Tamron F version with 6 blades in the Iris. 4 elements in 4 groups A very good 135mm from the 1970s which shows CA in the digital cameras Well built, solid. Focus ring was a bit stiff and the built-in hood had good friction. Nice color rendition and sharpness, with some blue C...
Rating: 9 | Recommended: Yes Read More
Tamron Di LD Macro 70-200mm F2.8 Review
tammy_70-200_crop.jpg
I bought it used from a fellow Pentaxian on the UK user website. It is in immaculate condition, but my word, what a lens! I've no need of any primes with this lens, it is so sharp and renders beautifully. N o need to say anything further.
Rating: 10 | Recommended: Yes Read More



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