• Tighter framing — 600mm vs 480mm focal length
• 35% more light-gathering aperture
• Faster optics at f/5.6 vs f/6
• Larger image circle (60mm) — supports bigger sensors

• Wider field — 480mm vs 600mm focal length
• Lighter (4.5kg vs 7.8kg) — easier to travel with

• Large emission nebulae and star clusters
• Full-frame astro cameras and DSLRs

• Large emission nebulae and star clusters
• Full-frame astro cameras and DSLRs

• With Full-frame (36×24mm, 3.76µm)
  FOV: 3.44° × 2.29°Scale: 1.29"/px
• With APS-C (23.5×15.7mm, 3.76µm)
  FOV: 2.24° × 1.50°Scale: 1.29"/px
• With IMX533 square (11.3×11.3mm, 3.76µm)
  FOV: 1.08° × 1.08°Scale: 1.29"/px

• With Full-frame (36×24mm, 3.76µm)
  FOV: 4.30° × 2.86°Scale: 1.62"/px
• With APS-C (23.5×15.7mm, 3.76µm)
  FOV: 2.81° × 1.87°Scale: 1.62"/px
• With IMX533 square (11.3×11.3mm, 3.76µm)
  FOV: 1.35° × 1.35°Scale: 1.62"/px

Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.

Best suited for beginners and wide-field enthusiasts running a portable travel rig.