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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 
10 205
  Current Prime Lenses 
6 57
  Legacy Zoom Lenses (1 viewing)
98 841
  Legacy Prime Lenses (2 viewing)
58 360
Tamron Lenses
  Current Zoom Lenses (2 viewing)
5 301
  Current Prime Lenses (2 viewing)
1 53
  Legacy Zoom Lenses (1 viewing)
18 194
  Legacy Prime Lenses 
17 57
Tamron Adaptall Lenses
  Zoom Lenses (1 viewing)
42 174
  Prime Lenses 
26 168
  Adaptall Adapters 
Adapters that enable the use of Tamron Adaptall lenses on Pentax cameras.
7 12
Samsung Lenses
  Prime Lenses 
2 3
  Zoom Lenses 
6 7
Lensbaby Lenses
  Prime Lenses 
11 6
Schneider-Kreuznach Lenses
  Prime Lenses 
6 2
  Zoom Lenses 
4 10
Tokina Lenses
  Prime Lenses (2 viewing)
17 114
  Zoom Lenses (3 viewing)
57 263
Samyang Lenses
  Prime Lenses (1 viewing)
16 144
Vivitar Lenses
  Zoom Lenses (2 viewing)
38 201
  Prime Lenses (1 viewing)
55 266
Cosina Lenses
  Zoom Lenses 
11 37
  Prime Lenses 
22 70
Ricoh Lenses
  Prime Lenses (1 viewing)
26 114
  Zoom Lenses 
12 26
Carl Zeiss Lenses
  Prime Lenses (3 viewing)
34 154
Quantaray Lenses
  Zoom Lenses 
11 44
Russian and Zenitar Lenses
  Prime Lenses (2 viewing)
47 298
Voigtlander Lenses
  Prime Lenses 
10 74
Miscellaneous Lenses
  Zoom Lenses 
106 165
  Prime Lenses (4 viewing)
290 739
  Teleconverters (All Brands) 
40 149

Recent Products
Tamron SP AF 90mm F/2.5 Macro 1:2 (52EP) review
Tamron SP AF 90mm F/2.5 Macro 1:2 (52EP)

Universon (Tomioka) 55mm f/1.4
Edixar 55mm F1.8 review
Edixar 55mm F1.8
Soligor 70-150mm F:3.5 MC Auto Zoom review
Soligor 70-150mm F:3.5 MC Auto Zoom
Tokina 28-70 f4 review
Tokina 28-70 f4
Arax 80mm F2.8 Tilt/Shift review
Arax 80mm F2.8 Tilt/Shift
Mitakon 20mm F2 4.5x Super Macro review
Mitakon 20mm F2 4.5x Super Macro
Lensbaby Velvet 85mm F1.8 review
Lensbaby Velvet 85mm F1.8
Lensbaby Composer Pro II (Sweet 80mm F2.8) review
Lensbaby Composer Pro II (Sweet 80mm F2.8)
Lensbaby Composer Pro II (Sweet 35mm F2.5) review
Lensbaby Composer Pro II (Sweet 35mm F2.5)

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
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
Carl Zeiss Vario-Sonnar T* 3,3-4,0/28-85 review
Carl Zeiss Vario-Sonnar T* 3,3-4,0/28-85
Tamron Adaptall 38-100mm f3.5 (SZ-38 and CZ-38M) review
Tamron Adaptall 38-100mm f3.5 (SZ-38 and CZ-38M)
Promaster 100mm 1:3.5 MC Macro (Spectrum 7) review
Promaster 100mm 1:3.5 MC Macro (Spectrum 7)
Venus Optics Laowa 12mm F2.8 Zero-D review
Venus Optics Laowa 12mm F2.8 Zero-D
Volna-9 50mm, f2.8, M42 lens review
Volna-9 50mm, f2.8, M42 lens

Statistics
Pentax Lenses: 1,109 | Total Reviews: 5,308 | Views: 23,528,391
Users browsing the lens reviews: Saxtonine, RHITJim, dms and 31 unregistered users
 
Recent Reviews
Pentax Review RSS Feed
Samyang 16mm F2 ED AS UMC CS Review
16mm.jpg
Very nice results on my k50 see here Very sharp lens and smooth focussing ring ("15mm" as k50 doesnt recognize it)
Rating: 9 | Recommended: Yes Read More
Sigma 18-35mm F1.8 DC HSM (Art) Review
sigma18-35.jpg
Just received my lens It appears that used with central collimator for AF there's no AF problems with my k-50 I use central collimator as i had problems with the 18-55Wr kit lens : it was blurring 50% of the time.
Rating: N/A | Recommended: Yes Read More
Vivitar Series 1 13mm f/2.8 ED AS IF UMC Review
user73994_pic94542_1450549856.jpg
First, here's an imgur gallery of photos I've taken with the lens: https://imgur.c om/a/FoM3S I 'm going to try to review this lens with a level head, but I have very mixed feelings about it. I bought it as an open box item a few years ago for a couple hundred dollars. I did some research b...
Rating: 7 | Recommended: Yes Read More
Arsat Jupiter-36B 250mm f:3.5 Review
IMGP6283.jpg
Useful lens as well on the Canon EOS as on the middle format for what it was made. As for the tripod problem: I solved it for the EOS combination by attaching a 64mm tripod mount to the adapter. Works well, sits tight. Take care not to buy one made out of plastic
Rating: 8 | Recommended: Yes Read More
Universon (Tomioka) 55mm f/1.4 Review
Bonjour, I picked up this Tomioka re-badged lens at a boot sale for 3. I knew what it was when I saw it, because I also have an Auto-Rikenon 55/1.4 copy of this lens. I used this lens an entire month as my Single Challenges lens on the K-1, so here is the flickr album : https://www.fli ckr.com/ph...
Rating: 9 | Recommended: Yes Read More
KMZ 50mm 1.7 Zenitar-M Review
z_50_1_7.jpg
My best 50mm lens, specially wide open. Better than my SMC takumar 50 f1.4 and pentax A 50 f1.7. Very sharp wide open with a nice bokeh. , en Flickr
Rating: 9 | Recommended: Yes Read More
Sigma 28mm F1.8 EX DG Aspherical DG DF Macro Review
Sigma_28mm_F18.jpg
I had been using a Pentax A 28mm f2.8 lens, as a standard walk around for my K3. I really like this focal length on crop sensor, much more than the 35mm FL. Thing was, although the size and weight were excellent, the IQ was only satisfactory when compared to my 2 new star lenses, the DA 50mm f1.8 an...
Rating: 8 | Recommended: Yes Read More
Edixar 55mm F1.8 Review
edixa.jpg
One of my favourite normal lenses: At first it's sharp (does a non-sharp normal lens exist?). Second , it's pretty with zebra aperture and focusing rings. Thirdly, it's nice and smooth to use and is has a A/M -switch. And last, but not least, it does some nice bokeh that may go wild in good, contra...
Rating: 10 | Recommended: Yes Read More
Sigma 20-40mm F2.8 EX DG Review
IGP0103.jpg
Amazing lens. This is the workhorse in my bag for reportage work, product photography and landscapes. I rarely miss my primes when this is on the camera. The 20-40mm range (plus a pair of feet) pretty effortlessly covers most situations for me. Constant fast aperture is fantastic for shooting cro...
Rating: 10 | Recommended: Yes Read More
Sigma 8-16mm F4.5-5.6 DC HSM Review
4778398369_8b85e5c815.jpg
Very unique lens with really special characteristics . Ultra wide angle with very little distortion. Focus is fast but almost everything is always in focus so it never really hunts. The significance between the 8mm and 10mm is huge, so if you are considering this versus the 10-20 for example, the e...
Rating: 9 | Recommended: Yes Read More



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