Canon EF-S 55-250mm f/4-5.6 IS STM
Sirui Saturn RF50B-A 50mm
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)
Sirui Saturn RF50B-A 50mm
This anamorphic lens is praised for its cinematic look, compact build, and great value. Users love the fun, John Wick-style footage it produces, though some note that the flare effect is subtler than expected and requires aperture adjustment. A few mention compatibility issues with magnetic filter systems.
Pros
- Cinematic anamorphic look
- Compact and lightweight build
- Great value for money
- Fun to use for creative footage
- Good build quality
Cons
- Flare effect subtler than expected
- Aperture adjustment needed for strong flare
- Compatibility issues with magnetic filters
- Vignetting with some filter systems
Scores
Specifications
| Canon EF-S 55-250mm f/4-5.6 IS STM | Sirui Saturn RF50B-A 50mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 55 mm | 50 mm |
| Focal Length Max | 250 mm | 50 mm |
| Elements | 15 | 17 |
| Groups | 12 | 12 |
| Aspherical Elements | 0★ | — |
| ED Elements | 1★ | — |
| Coating | Super Spectra coating | — |
| Aperture | ||
| Max Aperture | f/4 | T16 |
| Min Aperture | 4-5.6 | T2.9 |
| Constant | ✗ | ✓★ |
| Diaphragm Blades | 7 | 10★ |
| Build | ||
| Mount | Canon EF-S | Canon RF |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✗ | — |
| Weight | 0.38 kg★ | 0.47 kg |
| Filter Thread | 58 mm | 62 mm |
| AF & Stabilization | ||
| AF Type | STM★ | Manual Focus |
| Stabilization | ✓ | ✓ |
| Stabilization Stops | 4 stops★ | — |
| Focus | ||
| Min Focus Distance | 850 mm★ | 900 mm |
| Max Magnification | 0.29x | 1:16.2★ |
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)
Sirui Saturn RF50B-A 50mm
- Strong user sentiment (82nd percentile)82nd %ile
- Strong stabilization (79th percentile)
- Strong optical (68th percentile)
- Below average af (15th percentile)15th %ile
- Below average versatility (33rd percentile)
Pricing
Canon EF-S 55-250mm f/4-5.6 IS STM offers 3.3x better value for money
Verdict
Scores 86 overall, wins 9 of 9 usage categories and 6 of 22 specs.
