Canon EF-S 55-250mm f/4-5.6 IS STM
Rokinon IO2470AFZ 70mm
What Buyers Say
Canon EF-S 55-250mm f/4-5.6 IS STM
The Canon EF-S 55-250mm f/4-5.6 IS STM lens is widely praised for its excellent sharpness, fast and silent autofocus, and lightweight design, making it a fantastic value for amateur photographers and wildlife enthusiasts. Many users highlight the impressive image quality at the long end and the effective image stabilization, though some note softness beyond 200mm and noticeable vignetting at full zoom. A few reviewers experienced quality control issues like blurry images or a non-functional focus ring, but the overwhelming consensus is that this lens delivers outstanding performance for its price point.
Pros
- Excellent sharpness for the price
- Fast and silent STM autofocus
- Lightweight and compact design
- Effective image stabilization
- Great value for money
Cons
- Softness beyond 200mm
- Noticeable vignetting at full zoom
- Plastic build quality
- Electronic manual focus requires camera power
- Slow maximum aperture (f/5.6 at 250mm)
Rokinon IO2470AFZ 70mm
This lens has received overwhelmingly negative feedback due to severe build quality issues. Multiple verified buyers report that the lens mount breaks off within days or months, often due to tiny screws stripping plastic threads. Users also criticize Rokinon's poor customer support, with some unable to get replacements or repairs. A few Q&A responses note decent optical quality, but the structural failures make this lens unreliable.
Pros
- Decent optical quality
- Good value for money initially
Cons
- Lens mount breaks easily
- Poor build quality with plastic threads
- Terrible customer support
- Screws strip and fall out
- Lens falls off camera
Scores
Specifications
| Canon EF-S 55-250mm f/4-5.6 IS STM | Rokinon IO2470AFZ 70mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 55 mm | 24 mm |
| Focal Length Max | 250 mm | 70 mm |
| Elements | 15 | 17 |
| Groups | 12 | 14 |
| Aspherical Elements | 0 | 2★ |
| ED Elements | 1 | 3★ |
| Coating | Super Spectra coating | UMC Coating |
| Aperture | ||
| Max Aperture | f/4 | f/22 |
| Min Aperture | 4-5.6 | f/2.8 |
| Constant | ✗ | ✓★ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Canon EF-S | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✗ | ✓★ |
| Weight | 0.38 kg★ | 1.10 kg |
| Filter Thread | 58 mm | 82 mm |
| AF & Stabilization | ||
| AF Type | STM★ | LSM (Linear Sonic Motor) |
| Stabilization | ✓★ | ✗ |
| Stabilization Stops | 4 stops★ | — |
| Focus | ||
| Min Focus Distance | 850 mm | 350 mm★ |
| Max Magnification | 0.29x | 1:3.7★ |
Pros & Cons
Canon EF-S 55-250mm f/4-5.6 IS STM
- Strong stabilization (92nd percentile)92nd %ile
- Strong versatility (92nd percentile)92nd %ile
- Strong social proof (91st percentile)91st %ile
- Strong af (85th percentile)85th %ile
- Below average macro (31st percentile)
Rokinon IO2470AFZ 70mm
- Strong optical (93rd percentile)93rd %ile
- Strong versatility (81st percentile)81st %ile
- Below average user sentiment (0th percentile)0th %ile
- Below average social proof (5th percentile)5th %ile
- Below average aperture (22nd percentile)
- Below average bokeh (25th percentile)
Pricing
Canon EF-S 55-250mm f/4-5.6 IS STM offers 7.1x better value for money
Verdict
Scores 86 overall, wins 9 of 9 usage categories and 4 of 22 specs.
