Tamron
14mm f/2.8 IF Nikon-f
 vs
Sigma
12-24mm f/4.5-5.6 Pentax-k

vs

differences

Reasons to consider the Tamron 14mm f/2.8 IF Nikon-f
Is a prime lens Yes vs No
Help
 Prime lenses have a single focal length, they are typically sharper and have wider apertures
Significantly wider aperture f/2.8 vs f/4.5
Help
 At its widest, the 14mm f/2.8 IF Nikon-f captures slightly more light, 1.4 f-stops
Slightly shorter 89 mm vs 100 mm
Help
 More than 10% shorter
Tamron 14mm f/2.8 IF Nikon-f Learn more about
the Tamron 14mm f/2.8 IF Nikon-f

Reasons to consider the Sigma 12-24mm f/4.5-5.6 Pentax-k
More zoom 2x vs 1x
Help
 2x more zoom, giving you more flexibility for photos
Sigma 12-24mm f/4.5-5.6 Pentax-k Learn more about
the Sigma 12-24mm f/4.5-5.6 Pentax-k

similarities

Compared to lenses

Common Strengths Common Weaknesses
Min focal length Good wide-angle Help
14mm f/2.8 IF Nikon-f:14 mm
12-24mm f/4.5-5.6 Pentax-k:12 mm
Max focal length Poor telephoto Help
14mm f/2.8 IF Nikon-f:14 mm
12-24mm f/4.5-5.6 Pentax-k:24 mm
Focus motor No silent focus motor Help
Louder and slower
Magnification Poor magnification Help
14mm f/2.8 IF Nikon-f:1:6.5 (0.2x)
12-24mm f/4.5-5.6 Pentax-k:1:7.1 (0.1x)

Compared to wide angle lenses

Common Strengths Common Weaknesses

LensHero is not aware of any interesting strengths shared by these two products.
Zoom range Poor zoom Help
14mm f/2.8 IF Nikon-f:1x
12-24mm f/4.5-5.6 Pentax-k:2x
Image stabilization No image stabilization Help
Risk of blur

competitors

Shared Competitors

Advantages

Disadvantages
Nikon Nikkor AF-S 14-24mm f/2.8G ED

Nikon Nikkor AF-S 14-24mm f/2.8G ED

Wide angle lens

$1,905 - $1,997
Focus motor Has a silent focus motor
Fixed aperture Has a fixed aperture
Compare the Nikkor AF-S 14-24mm f/2.8G ED vs the 14mm f/2.8 IF Nikon-f
Compare the Nikkor AF-S 14-24mm f/2.8G ED vs the 12-24mm f/4.5-5.6 Pentax-k
Canon EF 8-15mm f/4L USM

Canon EF 8-15mm f/4L USM

Fisheye lens

$1,499
Magnification Has better macro
Fisheye Is a fisheye lens
Aperture Has a narrower aperture
Compare the EF 8-15mm f/4L USM vs the 14mm f/2.8 IF Nikon-f
Compare the EF 8-15mm f/4L USM vs the 12-24mm f/4.5-5.6 Pentax-k
Rokinon 14mm f/2.8 IF ED UMC Canon-ef

Rokinon 14mm f/2.8 IF ED UMC Canon-ef

Wide angle lens

$349
Auto focus Lacks autofocus
Compare the 14mm f/2.8 IF ED UMC Canon-ef vs the 14mm f/2.8 IF Nikon-f
Compare the 14mm f/2.8 IF ED UMC Canon-ef vs the 12-24mm f/4.5-5.6 Pentax-k
Rokinon 8mm f/3.5 Nikon-f

Rokinon 8mm f/3.5 Nikon-f

Fisheye lens

$269
Fisheye Is a fisheye lens
Aperture Has a narrower aperture
Auto focus Lacks autofocus
Compare the 8mm f/3.5 Nikon-f vs the 14mm f/2.8 IF Nikon-f
Compare the 8mm f/3.5 Nikon-f vs the 12-24mm f/4.5-5.6 Pentax-k
Samyang 7.5mm f/3.5 UMC MFT

Samyang 7.5mm f/3.5 UMC MFT

Fisheye lens

$296
Fisheye Is a fisheye lens
Aperture Has a narrower aperture
Compare the 7.5mm f/3.5 UMC MFT vs the 14mm f/2.8 IF Nikon-f
Compare the 7.5mm f/3.5 UMC MFT vs the 12-24mm f/4.5-5.6 Pentax-k
Nikon Nikkor 16mm f/2.8D

Nikon Nikkor 16mm f/2.8D

Fisheye lens

$750
Fisheye Is a fisheye lens
Compare the Nikkor 16mm f/2.8D vs the 14mm f/2.8 IF Nikon-f
Compare the Nikkor 16mm f/2.8D vs the 12-24mm f/4.5-5.6 Pentax-k
Sigma 10mm f/2.8 EX DC HSM Canon-ef

Sigma 10mm f/2.8 EX DC HSM Canon-ef

Fisheye lens

$649
Magnification Has better macro
Fisheye Is a fisheye lens
Compare the 10mm f/2.8 EX DC HSM Canon-ef vs the 14mm f/2.8 IF Nikon-f
Compare the 10mm f/2.8 EX DC HSM Canon-ef vs the 12-24mm f/4.5-5.6 Pentax-k

Tamron 14mm f/2.8 IF Nikon-f Competitors

Advantages

Disadvantages
Lensbaby Scout Mount Fisheye Nikon-f

Lensbaby Scout Mount Fisheye Nikon-f

Fisheye lens

$250
Fisheye Fisheye lens
Weight Lighter
Wide maximum Much wider aperture
Aperture Narrower aperture
Compare the Scout Mount Fisheye Nikon-f vs the 14mm f/2.8 IF Nikon-f
Canon EF 14mm f/2.8L II USM

Canon EF 14mm f/2.8L II USM

Fisheye lens

$2,089
Fisheye Fisheye lens
Focus motor Has a silent focus motor
Lowest price More expensive
Magnification Slightly less magnification
Compare the EF 14mm f/2.8L II USM vs the 14mm f/2.8 IF Nikon-f
Sigma 30mm f/1.4 EX DC Sony-alpha

Sigma 30mm f/1.4 EX DC Sony-alpha

Low light lens

$439
Aperture Significantly wider aperture
Length Shorter
Wide maximum Wider aperture
Magnification Slightly less magnification
Compare the 30mm f/1.4 EX DC Sony-alpha vs the 14mm f/2.8 IF Nikon-f
Nikon Nikkor 10.5mm f/2.8G ED DX

Nikon Nikkor 10.5mm f/2.8G ED DX

Fisheye lens

$649
Fisheye Fisheye lens
Length Slightly shorter
Compare the Nikkor 10.5mm f/2.8G ED DX vs the 14mm f/2.8 IF Nikon-f
Sigma 20mm f/1.8 EX DG DF RF Nikon-f

Sigma 20mm f/1.8 EX DG DF RF Nikon-f

Low light lens

$629
Aperture Wider aperture
Magnification More magnification
Compare the 20mm f/1.8 EX DG DF RF Nikon-f vs the 14mm f/2.8 IF Nikon-f

Sigma 12-24mm f/4.5-5.6 Pentax-k Competitors

Advantages

Disadvantages
Sigma 8-16mm f/4.5-5.6 DC HSM Pentax-k

Sigma 8-16mm f/4.5-5.6 DC HSM Pentax-k

Wide angle lens

$699
Focus motor Has a silent focus motor
Compare the 8-16mm f/4.5-5.6 DC HSM Pentax-k vs the 12-24mm f/4.5-5.6 Pentax-k
Tamron SP 10-24mm f/3.5-4.5 DI II Pentax-k

Tamron SP 10-24mm f/3.5-4.5 DI II Pentax-k

Wide angle lens

$474
Aperture Wider aperture
Magnification Slightly more magnification
Wide maximum Much wider aperture
Compare the SP 10-24mm f/3.5-4.5 DI II Pentax-k vs the 12-24mm f/4.5-5.6 Pentax-k
Canon TS-E 17mm f/4L

Canon TS-E 17mm f/4L

Tilt-shift lens

$2,179
Tilt-shift Tilt-shift lens
Prime lens Is a prime lens
Auto focus Auto focus
Lowest price More expensive
Compare the TS-E 17mm f/4L vs the 12-24mm f/4.5-5.6 Pentax-k
Nikon Nikkor 18-35mm f/3.5-4.5D ED-IF

Nikon Nikkor 18-35mm f/3.5-4.5D ED-IF

Wide angle lens

$569
Aperture Wider aperture
Length Slightly shorter
Compare the Nikkor 18-35mm f/3.5-4.5D ED-IF vs the 12-24mm f/4.5-5.6 Pentax-k
Tokina 11-16mm f/2.8 AT-X 116 Pro DX Nikon-f

Tokina 11-16mm f/2.8 AT-X 116 Pro DX Nikon-f

Wide angle lens

$569
Fixed aperture Has a consant aperture
Aperture Significantly wider aperture
Magnification Slightly less magnification
Zoom range Slightly less zoom
Compare the 11-16mm f/2.8 AT-X 116 Pro DX Nikon-f vs the 12-24mm f/4.5-5.6 Pentax-k

discussion Which do you think is better?

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