IRIX Blackstone 15mm f/2.4 Blackstone 15mm

IRIX Blackstone 15mm f/2.4 Blackstone 15mm

IRIX
45 Overall Score
vs
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD

Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD

Tamron
100 Overall Score

Scores

Budget
IRIX
41
Tamron
97
Macro
IRIX
64
Tamron
95
Landscape
IRIX
48
Tamron
87
Wildlife Sports
IRIX
32
Tamron
85
Professional
IRIX
41
Tamron
85
Street
IRIX
36
Tamron
83
Video Cinema
IRIX
32
Tamron
82
Portrait
IRIX
33
Tamron
81
Travel
IRIX
37
Tamron
81

Specifications

IRIX Blackstone 15mm f/2.4 Blackstone 15mmTamron Di III VC 28-300mm f/4-7.1 Di III VC VXD
Optics
Typeprimezoom
Focal Length Min15 mm28 mm
Focal Length Max15 mm300 mm
Elements1520
Groups1113
Aspherical Elements23★
ED Elements22
CoatingNeutrino coatingfluorine coating
Aperture
Max Aperturef/22f/4
Min Aperturef/2.44-7.1
Constant✗✗
Diaphragm Blades99
Build
MountPentax KSony E
Formatfull-framefull-frame
Weather Sealed✓✓
Weight0.69 kg0.59 kg★
Filter Thread95 mm67 mm
AF & Stabilization
AF Typemanual focus onlyVXD linear motor★
Stabilization✗✓★
Focus
Min Focus Distance280 mm190 mm★
Max Magnification1:21:3.8

Pros & Cons

IRIX Blackstone 15mm f/2.4 Blackstone 15mm

  • Strong optical (86th percentile)86th %ile
  • Strong macro (75th percentile)
  • Strong social proof (70th percentile)
  • Below average af (13th percentile)13th %ile
  • Below average aperture (20th percentile)20th %ile
  • Below average bokeh (23rd percentile)
  • Below average versatility (34th percentile)

Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD

  • Strong af (98th percentile)98th %ile
  • Strong versatility (98th percentile)98th %ile
  • Strong optical (97th percentile)97th %ile
  • Strong user sentiment (91st percentile)91st %ile

Pricing

Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD is $91 cheaper (1.4x less).

IRIX Blackstone 15mm f/2.4 Blackstone 15mm0.136score per dollar
vs
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD0.418score per dollar

Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD offers 3.1x better value for money

IRIX Blackstone 15mm f/2.4 Blackstone 15mm

Adorama
$330
Amazon
$330
B&H Photo
$349

Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD

Amazon
$239
Newegg
$280
B&H Photo
$699
Adorama
$699
Best Buy
$900

Verdict

★ Winner: Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD

Scores 100 overall, wins 9 of 9 usage categories and 5 of 21 specs.

Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD Better at:

MacroBudgetStreetTravelPortraitLandscapeProfessionalVideo CinemaWildlife Sports

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View Details & Prices: IRIX Blackstone 15mm f/2.4 Blackstone 15mm View Details & Prices: Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD