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SMC Pentax-A 16mm F2.8 Fish-Eye Reviews - A Prime Lenses - Pentax Lens Reviews & Lens Database
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SMC Pentax 67 / S-M-C Takumar 6x7 / Takumar 6x7 35mm F4.5 Fish Eye Reviews - 67 Wide-Angle Primes - Pentax Lens Reviews & Lens Database
Pentax 10-17mm f/3.5-4.5 ED HD DA Fish-Eye Review
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S-M-C/Super Fish-Eye-Takumar 17mm F4 Reviews - M42 Screwmount Extreme Wide-Angle Primes - Pentax Lens Reviews & Lens Database
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Best Buy: Rokinon 8 mm f/3.5 Fisheye Lens for Pentax KAF2 FE8M-P
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Amazon.com : PENTAX DA 10-17mm f/3.5-4.5 ED (IF) Fish-Eye Lens for Pentax Digital SLR : Camera Lenses : Electronics
