Wide aperture
Help
 
Lens category
Help
Lens mount
Help

Pentax K Lenses that have a f/1.8 or faster aperture

#1

Pentax SMC FA 50mm f/1.4

Pentax SMC  FA 50mm f/1.4

"The pictures are very sharp. Low light is fantastic. I have not found anything I dislike about it." bhphotovideo.com

 
Badge
Supports autofocus
Help
Easier to use
Help
Aperture f/1.4
Help
Weight 221 g
Help
Auto focus Yes
Help
Min focal length 50 mm
Help
Length 38 mm
Help
Zoom range 1x
Help
Diameter 64 mm
Help
Max focal length 50 mm
#2

Pentax SMC 55mm f/1.4 DA* SDM

Pentax SMC 55mm f/1.4 DA* SDM

"I love the lens in almost all ways. It's sharp, fast focusing, needs very little light in F1.4 and the quick shift to manual focus is really OK to have." bhphotovideo.com

 
Badge
Supports autofocus
Help
Easier to use
Help
Aperture f/1.4
Help
Weight 375 g
Help
Auto focus Yes
Help
Min focal length 55 mm
Help
Length 66 mm
Help
Zoom range 1x
Help
Diameter 71 mm
Help
Max focal length 55 mm
#3

Pentax SMC FA 77mm f/1.8

Pentax SMC  FA 77mm f/1.8

"Great multi-purpose performing lens, particularly if you want to travel light and leave the bag at home." bhphotovideo.com

 
Badge
Supports autofocus
Help
Easier to use
Help
Aperture f/1.8
Help
Weight 269 g
Help
Auto focus Yes
Help
Min focal length 77 mm
Help
Length 48 mm
Help
Zoom range 1x
Help
Diameter 74 mm
Help
Max focal length 77 mm
#4

Pentax SMC DA 50mm f/1.8

Pentax SMC  DA 50mm f/1.8
 
Badge
Supports autofocus
Help
Easier to use
Help
Aperture f/1.8
Help
Weight 122 g
Help
Auto focus Yes
Help
Min focal length 50 mm
Help
Length 38 mm
Help
Zoom range 1x
Help
Diameter 64 mm
Help
Max focal length 50 mm
#5

Rokinon 50mm f/1.4 AS IF UMC Pentax-k

Placeholder
Help
Aperture f/1.4
Help
Weight 0.5 kg
Help
Auto focus No
Help
Min focal length 50 mm
Help
Length n/a
Help
Zoom range 1x
Help
Diameter n/a
Help
Max focal length 50 mm
#6

Samyang 35mm f/1.4 AS UMC Pentax K

Samyang 35mm f/1.4 AS UMC Pentax K
Help
Aperture f/1.4
Help
Weight 0.7 kg
Help
Auto focus No
Help
Min focal length 35 mm
Help
Length 110 mm
Help
Zoom range 1x
Help
Diameter 83 mm
Help
Max focal length 35 mm
#7

Pentax SMC FA 31mm f/1.8

Pentax SMC  FA 31mm f/1.8

"A thing of beauty that takes stunning photos." bhphotovideo.com

 
Badge
Supports autofocus
Help
Easier to use
Help
Aperture f/1.8
Help
Weight 346 g
Help
Auto focus Yes
Help
Min focal length 31 mm
Help
Length 69 mm
Help
Zoom range 1x
Help
Diameter 66 mm
Help
Max focal length 31 mm
#8

Sigma 18-35mm f/1.8 DC HSM Pentax K

Sigma 18-35mm f/1.8 DC HSM Pentax K
 
Badge
Supports autofocus
Help
Easier to use
Help
Aperture f/1.8
Help
Weight 0.8 kg
Help
Auto focus Yes
Help
Min focal length 18 mm
Help
Length 121 mm
Help
Zoom range 1.9x
Help
Diameter 78 mm
Help
Max focal length 35 mm
#9

Sigma 50mm f/1.4 EX DG HSM Pentax K

Sigma 50mm f/1.4 EX DG HSM Pentax K

"First off it's a solid lens, a bit heavy but it takes a beating. Fast focus and quiet. I use it with k20 and I am very happy with the results. A must for low light photography." bhphotovideo.com

 
Badge
Supports autofocus
Help
Easier to use
Help
Aperture f/1.4
Help
Weight 0.5 kg
Help
Auto focus Yes
Help
Min focal length 50 mm
Help
Length 69 mm
Help
Zoom range 1x
Help
Diameter 84 mm
Help
Max focal length 50 mm
#10

Sigma 30mm f/1.4 DC HSM Pentax K

Sigma 30mm f/1.4 DC HSM Pentax K
 
Badge
Supports autofocus
Help
Easier to use
Help
Aperture f/1.4
Help
Weight 435 g
Help
Auto focus Yes
Help
Min focal length 30 mm
Help
Length 63 mm
Help
Zoom range 1x
Help
Diameter 74 mm
Help
Max focal length 30 mm