Zeiss 15mm f/2.8 Milvus Lens Compared to the Irix 15mm f/2.4 Blackstone Lens

SpecificationsZeiss 15mm f/2.8 Milvus LensIrix 15mm f/2.4 Blackstone Lens
  Zeiss 15mm f/2.8 Milvus Lens Irix 15mm f/2.4 Blackstone Lens
Year Introduced20162016
Mounts OnFull-Frame, APS-CFull-Frame, APS-C
Lenses / Groups15/1215/11
Angle of View: Diagonal110°110º
Angle of View: Horizontal100°
Angle of View: Vertical76°
 
Aperture  
Aperture Range - Wide / Long f/2.8-22 f/2.4-22
Number of Aperture Blades 9 9
Rounded Aperture? Y
 
Weight  
Manufacturer Specification Weight 33.4 oz  (947g) 24.2 oz  (686g)
Actual Weight 29.5 oz  (835g) 22.9 oz  (650g)
Lens Hood Weight 2.5 oz  (70g) 1.1 oz  (30g)
In-Use Weight 31.9 oz  (905g) 24 oz  (680g)
 
Size  
Manufacturer Spec Size (DxL) 4.03 x 3.94”  (102.3 x 100.2mm) 4.49 x 3.94”  (114 x 100mm)
Measured Size (DxL) 4.04 x 3.95”  (103 x 100.4mm) 4.03 x 3.62”  (102.4 x 91.9mm)
Max Length at Full Extension 3.95”  (100.4mm) 3.62”  (91.9mm)
Internal Focusing? / Extends with Focusing? Y / N Y / N
Lens Hood Size (DxL) 4.48 x 1.85”  (113.8 x 46.9mm) 4.47 x 1.71”  (113.5 x 43.4mm)
Lens Length with Hood (Min-Max) 5.42 - 5.42”  (137.6 - 137.6mm) 5.09 - 5.09”  (129.3 - 129.3mm)
Size of Rings: Focus / Zoom 0.86”  (21.9mm) 1.26”  (32mm)
Filter Size 95mm  UV ► CP ► 95mm  UV ► CP ►
Front Element (Filter Mount) Rotates N N
 
Focus  
AF Motor Type
Full Time Manual Focus
Focus Ring Rotation 120° 152°
Focus Limiter? / Focus Limiter Ranges
Distance Scale? / Type Y / Engraved Y / Engraved
 
Close Focus  
Specified Min Focus Distance 9.84”  (250mm) 11.02”  (280mm)
Tested Min Focus Distance (Wide / Long) 9.8”  (249mm) 9.09”  (231mm)
Maximum Magnification (MM) 0.11x 0.11x
 
Features  
Lens Hood Included / Model? Y / Y /
Weather Sealed? / Filter Required? Y / Y /
Image Stabilization? / Stops? / Tripod Sensing? N N
Extender Compatible? N N
Case Included? / Type? N / Y / Hard Case Buy ►
47.25" x 31.5" Subject Framing Distance 15mm = 1.98' 15mm = 2.02'
1200mm x 800mm Subject Framing Distance 15mm = 602mm 15mm = 617mm
 
Review Zeiss 15mm f/2.8 Milvus Lens Irix 15mm f/2.4 Blackstone Lens
 
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