Same optical design

10-17mm F/3.5-4.5
smc Pentax-DA 10-17mm F/3.5-4.5 ED [IF] Fisheye (Schneider-KREUZNACH D-Xenogon, Samsung SA)APS-C 2005 
Tokina AT-X Fisheye 107 AF 10-17mm F/3.5-4.5 (IF) DXAPS-C 2006 
11-18mm F/4.5-5.6
Tamron SP AF 11-18mm F/4.5-5.6 Di II LD Aspherical (IF) A13APS-C 2004 
Konica Minolta AF DT 11-18mm F/4.5-5.6 (D)APS-C 2005 
Sony DT 11-18mm F/4.5-5.6 (SAL1118)APS-C 2006 
12-24mm F/4
smc Pentax-DA 12-24mm F/4 ED AL [IF] (Schneider-KREUZNACH D-Xenon, Samsung SA)APS-CPro 2005 
Tokina AT-X Pro 124 AF SD 12-24mm F/4 (IF) DXAPS-CPro 2004 
14mm F/2.8
Nikon AF Nikkor 14mm F/2.8D EDPro 2000 
Tamron SP AF 14mm F/2.8 Aspherical (IF) 69EPro 1999 
15-30mm F/2.8
HD Pentax-D FA 15-30mm F/2.8 ED SDM WRPro 2016 
Tamron SP 15-30mm F/2.8 Di VC USD A012BestPro 2014 
16-50mm F/2.8
smc Pentax-DA* 16-50mm F/2.8 ED AL [IF] SDMAPS-CBestPro 2007 
Tokina AT-X Pro 165 AF SD 16-50mm F/2.8 (IF) DXAPS-CPro 2006 
17-35mm F/2.8-4
Tamron SP AF 17-35mm F/2.8-4 Di LD Aspherical (IF) A05Pro 2003 
Konica Minolta AF 17-35mm F/2.8-4 (D)Pro 2004 
18-200mm F/3.5-6.3
Tamron AF 18-200mm F/3.5-6.3 XR Di II LD Aspherical (IF) Macro A14APS-C 2004 
Konica Minolta AF DT 18-200mm F/3.5-6.3 (D)APS-C 2005 
Sony DT 18-200mm F/3.5-6.3 (SAL18200)APS-C 2006 
18-200mm F/3.5-6.3
Tamron 18-200mm F/3.5-6.3 Di III VC B011APS-C 2014 
Sony E 18-200mm F/3.5-6.3 OSS LE (SEL18200LE)APS-C 2012 
18-250mm F/3.5-6.3
smc Pentax-DA 18-250mm F/3.5-6.3 ED AL [IF] (Samsung SA)APS-C 2007 
Tamron AF 18-250mm F/3.5-6.3 Di II LD Aspherical (IF) Macro A18APS-C 2007 
Sony DT 18-250mm F/3.5-6.3 (SAL18250)APS-C 2007 
18-270mm F/3.5-6.3
smc Pentax-DA 18-270mm F/3.5-6.3 ED SDMAPS-CBest 2012 
Tamron AF 18-270mm F/3.5-6.3 Di II VC PZD B008APS-C 2010 
24-70mm F/2.8
HD Pentax-D FA 24-70mm F/2.8 ED SDM WRBestPro 2015 
Tamron SP AF 24-70mm F/2.8 Di VC USD A007BestPro 2012 
28-75mm F/2.8
Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical (IF) Macro A09BestPro 2003 
Konica Minolta AF 28-75mm F/2.8 (D)Pro 2004 
Sony 28-75mm F/2.8 SAM (SAL2875)Pro 2009 
28-105mm F/4-5.6
smc Pentax-FA 28-105mm F/4-5.6 [IF] 1999 
Tamron AF 28-105mm F/4-5.6 (IF) 179D 1998 
28-200mm F/3.8-5.6
smc Pentax-FA 28-200mm F/3.8-5.6 AL [IF] 1996 
Tamron AF 28-200mm F/3.8-5.6 LD Aspherical (IF) 171D, 271D, 571D 1996 
35mm F/2.8 MACRO
smc Pentax-DA 35mm F/2.8 Macro LimitedAPS-C1:1 2008 
Tokina AT-X Pro Macro M35 AF 35mm F/2.8 DXAPS-C1:1 2007 
50mm F/1.4
HD Pentax-D FA* 50mm F/1.4 SDM AWPro 2018 
Tokina opera 50mm F/1.4 FFBestPro 2018 
50-135mm F/2.8
smc Pentax-DA* 50-135mm F/2.8 ED [IF] SDMAPS-C 2007 
Tokina AT-X Pro 535 AF SD 50-135mm F/2.8 (IF) DXAPS-C 2006 
55-200mm F/4-5.6
Tamron AF 55-200mm F/4-5.6 Di II LD Macro A15APS-C 2005 
Sony DT 55-200mm F/4-5.6 (SAL55200)APS-C 2007 
70-200mm F/2.8
Tamron SP 70-200mm F/2.8 Di VC USD A009Pro 2012 
HD Pentax-D FA* 70-200mm F/2.8 ED DC AWBestPro 2015 
70-210mm F/4
Tamron 70-210mm F/4 Di VC USD A034BestPro 2018 
HD Pentax-D FA 70-210mm F/4 ED SDM WRBestPro 2020 
70-300mm F/4-5.6
Tamron AF 70-300mm F/4-5.6 LD 372D 1996 
Nikon AF Zoom-Nikkor 70-300mm F/4-5.6D ED 1998 
100mm F/2.8 MACRO
smc Pentax-D FA 100mm F/2.8 Macro (Schneider-KREUZNACH D-Xenon)1:1Pro 2004 
Tokina AT-X Pro Macro M100 AF 100mm F/2.8 D1:1Pro 2005 

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