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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)
10 199
  Current Prime Lenses (1 viewing)
6 57
  Legacy Zoom Lenses (10 viewing)
98 836
  Legacy Prime Lenses (1 viewing)
58 358
Tamron Lenses
  Current Zoom Lenses 
7 338
  Current Prime Lenses 
1 52
  Legacy Zoom Lenses (1 viewing)
16 153
  Legacy Prime Lenses 
16 54
Tamron Adaptall Lenses
  Zoom Lenses (3 viewing)
42 173
  Prime Lenses (1 viewing)
26 167
  Adaptall Adapters 
Adapters that enable the use of Tamron Adaptall lenses on Pentax cameras.
7 12
Samsung Lenses
  Prime Lenses 
2 3
  Zoom Lenses (1 viewing)
6 7
Lensbaby Lenses
  Prime Lenses 
7 6
Schneider-Kreuznach Lenses
  Prime Lenses 
5 1
  Zoom Lenses 
4 10
Tokina Lenses
  Prime Lenses (1 viewing)
17 112
  Zoom Lenses (3 viewing)
56 263
Samyang Lenses
  Prime Lenses (1 viewing)
16 141
Vivitar Lenses
  Zoom Lenses (3 viewing)
38 201
  Prime Lenses (4 viewing)
55 265
Cosina Lenses
  Zoom Lenses (2 viewing)
11 36
  Prime Lenses (1 viewing)
22 69
Ricoh Lenses
  Prime Lenses 
26 114
  Zoom Lenses 
12 26
Carl Zeiss Lenses
  Prime Lenses (4 viewing)
34 153
Quantaray Lenses
  Zoom Lenses 
11 44
Russian and Zenitar Lenses
  Prime Lenses (6 viewing)
47 296
Voigtlander Lenses
  Prime Lenses (2 viewing)
10 73
Miscellaneous Lenses
  Zoom Lenses (3 viewing)
105 164
  Prime Lenses (20 viewing)
286 730
  Teleconverters (All Brands) (1 viewing)
40 149

Recent Products
Komura 100mm f/1.8 Ernostar review
Komura 100mm f/1.8 Ernostar
Sigma XQ 39-80mm F3.5 review
Sigma XQ 39-80mm F3.5
Sigma 28-80mm F3.5-4.5 zoom-theta M42 review
Sigma 28-80mm F3.5-4.5 zoom-theta M42
Soligor C/D 75-205mm f/3.8-4.8 MC Zoom-Macro review
Soligor C/D 75-205mm f/3.8-4.8 MC Zoom-Macro
Super Carenar MC 135mm F2.8 review
Super Carenar MC 135mm F2.8

Pentacon 50mm F1.8 Auto
Vivitar / Panagor 400mm f5.6 review
Vivitar / Panagor 400mm f5.6
Tamron 35mm f2.8 review
Tamron 35mm f2.8
Irix 11mm F4 Blackstone review
Irix 11mm F4 Blackstone
Irix 11mm F4 Firefly review
Irix 11mm F4 Firefly

Most Popular Lenses
Helios 44-2 58mm F/2 review
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

Super Albinar 80-205, f/4.5 Auto Zoom
Tamron Adaptamatic 21mm F4.5 (PFJ-45Au) review
Tamron Adaptamatic 21mm F4.5 (PFJ-45Au)
Panagor 55mm f2.8 Macro PMC review
Panagor 55mm f2.8 Macro PMC
Vivitar M 135mm F3.5 review
Vivitar M 135mm F3.5
Tokina AT-X 24-200mm f/3.5-5.6 242 AF review
Tokina AT-X 24-200mm f/3.5-5.6 242 AF

Statistics
Pentax Lenses: 1,097 | Total Reviews: 5,262 | Views: 22,877,645
Users browsing the lens reviews: geek-girl, AlexBrtn, r.mark and 78 unregistered users
 
Recent Reviews
Pentax Review RSS Feed
Voigtlander Nokton 58mm F1.4 Review
CV_58_SLII.jpg
Since discovering Voigtlander lenses several years ago I've owned every one of them, some twice. The Nokton 58mm was one I sold during my "exploring" phase of trying out all the high-reputation lenses made for Pentax. I bought the 58mm a second time when I got my K-1 hoping that a FF sensor might ma...
Rating: 10 | Recommended: Yes Read More
Sigma 17-50mm F2.8 EX DC OS HSM (No Stabilizer) Review
17-50nonOS.jpg
I was very satisfied with my Pentax DA16-45, but started thinking that having a similar range zoom with an f2.8 aperture would help with some indoor shots, so I began looking around, and noticed this Sigma. This lens is noticeably sharper than the Pentax to the point that you have to soften almost e...
Rating: 10 | Recommended: Yes Read More
Sigma 100-300mm F4.5-6.7 DL Review
Sigma_100-300_DL_Lens.jpg
Found this in my box of old lenses and for a laugh thought I would try it on my new K1. Full frame setting is very good the crop setting is even better, sharp and easy to focus.. Biggest benefit is its weight and low cost. Would definitely recommend if the price is right.
Rating: 7 | Recommended: Yes Read More
Tamron Adapt-A-matic/fixed mount 135mm F/2.8 Auto Review
GGW_8188.JPG
I had the screw mount version of this from my past days and wanted to convert it to K mount for use with my K-1. After looking for K adapters on ebay, I came across the same lens already with a K mount for a price I couldn't pass by. What I got was a pristine lens along with its case, neither of whi...
Rating: 8 | Recommended: Yes Read More
Samyang 135mm F2.0 ED UMC Review
samyang_135_3.jpg
The lens is off-the-charts great, my go-to for portraits and faux macros and probably my favorite lens. I will gladly take a hike away from my subject to use it vs. the FA 77 on the K-1 for portraits. The 0.8 m minimum focus distance is a nice bonus for a telephoto and makes it useful for shots that...
Rating: 10 | Recommended: Yes Read More
HorusBennu 50mm F1.7 MC (PK) Review
Image1v6.jpg
I think lens good.
Rating: 9 | Recommended: Yes Read More
Sigma 28-70mm F2.8 EX DF Review
Sigma_28-70mm_EX_DF.jpg
Probably 8 would be the right vote, but i want to compensate the previous vote (4). Why review a lens that is obviously damaged? And why in the wrong place (it was a DG, this is the DF from film time!). My example had a problem: quite strong vignetting, especially at the wide end. Then it started ...
Rating: 9 | Recommended: Yes Read More
Tamron Adaptall 105mm f/2.5 (CT-105) Review
105_ct105.jpg
This is my Tamron from the 1970's, originally used on a Canon AE-1 (with FD mount) I got a KA mount for it some ago....didn't find much use for it on my K5 or K3, but if is a joy to use with my K1. Quite substantial in construction, and compact, this lens has a smooth focus action, and also nice but...
Rating: 9 | Recommended: Yes Read More
Industar-50 50mm F3.5 Review
1256911299_resized.jpg
I bought this litle fellow at Ebay 10 USD, I had to have it. First of all, the size. It fit in a jeans pocket, and if you have a large pocket it disapeare. It is amazingly sharp, even at f/3,5. The aperature adjustment is a bit unusual , but after 10min it is there in your fingers. I had a walk toda...
Rating: 9 | Recommended: Yes Read More
Porst, Spiratone, Apollo ...et al (Mitake) 135mm f1.8 Tele MC Review
image11.jpg
I have the Formula 5 version. This is not the Spiratone 135mm 1.8 reviewed elsewhere although Spiratone, Weltblick, Eyemik and a cast of other characters also rebranded the Mitake. Spiratone 135mm by Mitake will be marked on the front of the lens. The other Spiratone has a different optical desig...
Rating: 9 | Recommended: Yes Read More



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