IRIX Blackstone 11mm f/4 Blackstone 11mm
The 11mm focal length, constant f/4 aperture, and advanced optic layout with three aspherical and two ED elements ensure sharp, rectilinear images free of distortion, housed in a weather-sealed magnesium alloy body. A manual focus mechanism includes a focus lock, UV fluorescent engraved markings, and a rounded nine-blade diaphragm for precise control and smooth bokeh. This lens suits architectural and interior photographers who demand a rugged, weather-resistant ultra-wide prime for detailed, field-based work.
حول هذا الـ Lens
The 11mm focal length, constant f/4 aperture, and advanced optic layout with three aspherical and two ED elements ensure sharp, rectilinear images free of distortion, housed in a weather-sealed magnesium alloy body. A manual focus mechanism includes a focus lock, UV fluorescent engraved markings, and a rounded nine-blade diaphragm for precise control and smooth bokeh. This lens suits architectural and interior photographers who demand a rugged, weather-resistant ultra-wide prime for detailed, field-based work.
- Focal length 11mm
- Max aperture 22
- Mount Pentax K
- Weather sealed
- Weight g 790
- Af type Manual Focus
- Lens type wide-angle
نظرة عامة
الأداء
المزايا والعيوب
Pros
- Strong optical (89th percentile) 89th
- Strong macro (72th percentile) 72th
Cons
- Below average user sentiment (10th percentile) 10th
- Below average af (14th percentile) 14th
- Below average build (20th percentile) 20th
- Below average aperture (24th percentile) 24th
المواصفات التقنية
المواصفات الكاملة
Optics
| Type | wide-angle |
| Focal Length Min | 11 |
| Focal Length Max | 11 |
| Elements | 16 |
| Groups | 10 |
| Aspherical Elements | 3 |
| ED Elements | 2 |
| Coating | Neutrino coating |
Aperture
| Max Aperture | 22 |
| Min Aperture | 4 |
| Constant | Yes |
| Diaphragm Blades | 9 |
Build
| Mount | Pentax K |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 0.8 kg / 1.7 lbs |
AF & Stabilization
| AF Type | Manual Focus |
| Stabilization | No |
Focus
| Min Focus Distance | 275 |
القيمة مقابل السعر
مقارنة بالمنافسين
| Spec | IRIX Blackstone 11mm f/4 Blackstone 11mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | Nikon NIKKOR Z 28-400mm f/4-8 VR | Panasonic LUMIX S S-R28200 | Canon L-series RF 24-70mm f/2.8L IS USM |
|---|---|---|---|---|---|---|
| Focal Length | 11mm | 16-300mm | 18-300mm | 28-400mm | 28-200mm | 24-70mm |
| Max Aperture | 22 | f/3.5 | f/3.5 | f/4 | f/4 | 2.8 |
| Mount | Pentax K | Sony E | Fuji X | Nikon Z | L-Mount | Canon RF |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | true | true | false | true | true | true |
| Weight (g) | 790 | 615 | 92 | 726 | 413 | 805 |
| AF Type | Manual Focus | HLA | VXD linear motor | STM | Autofocus | Nano USM |
| Lens Type | wide-angle | zoom | zoom | zoom | macro | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| IRIX Blackstone 11mm f/4 Blackstone 11mm | 14 | 28 | 20.4 | 71.9 | 88.7 | 24.2 | 10.2 | 34.2 | 56.9 | 35.9 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 54.4 | 83.8 | 58.9 | 85.9 | 98.9 | 76.4 | 0 | 99.6 | 89.4 | 99.1 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.3 | 74.2 | 96.4 | 87.7 | 74.8 | 76.4 | 30.1 | 99.2 | 68.1 | 81.2 |
| Nikon NIKKOR Z 28-400mm f/4-8 VR Compare | 86.8 | 77.2 | 51.5 | 81.3 | 97.1 | 70.7 | 0 | 98.9 | 74.1 | 98.3 |
| Panasonic LUMIX S S-R28200 Compare | 54.4 | 77.2 | 74.2 | 70.8 | 91.3 | 70.7 | 0 | 95.6 | 89.4 | 99.5 |
| Canon L-series RF 24-70mm f/2.8L IS USM Compare | 94.6 | 85.7 | 45.4 | 44 | 95.5 | 83.2 | 30.1 | 80.7 | 89.4 | 96.4 |
تقييمات حسب الاستخدام
مراجعة كاملة قادمة قريبًا. المواصفات والتقييمات والأسعار والرسوم البيانية أعلاه محدَّثة دائمًا.
