telescopecomparison · 2-way
Askar 60F vs SharpStar 61EDPH III
SharpStar
61EDPH III
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Key differences
+22% focal length
Slower by 1.3 f-stops
Specifications
| Specification | Askar 60F | SharpStar 61EDPH III |
|---|---|---|
| Optics | ||
| Type | Refractor | Refractor |
| Optical design | Quadruplet Petzval | Doublet APO |
| Aperture | 60mm | 61mm |
| Focal length | 408mm | 335mm |
| Native f/ratio | f/6.8 | f/5.5 |
| Image circle | 44mm | 32mm |
| Full-frame support | Yes | No |
| Physical | ||
| Weight | 2.5kg | 2.4kg |
Advantages of Askar 60F
- Tighter framing — 408mm vs 335mm focal length
- Larger image circle (44mm) — supports bigger sensors
Advantages of SharpStar 61EDPH III
- Wider field — 335mm vs 408mm focal length
- Faster optics at f/5.5 vs f/6.8
Best for — Askar 60F
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — SharpStar 61EDPH III
- Wide-field nebulae and Milky Way regions
Askar 60F — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 5.06° × 3.37°Scale: 1.90"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 3.30° × 2.20°Scale: 1.90"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.59° × 1.59°Scale: 1.90"/px
SharpStar 61EDPH III — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 6.16° × 4.11°Scale: 2.32"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 4.02° × 2.69°Scale: 2.32"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.93° × 1.93°Scale: 2.32"/px
Askar 60F — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
SharpStar 61EDPH III — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
