Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 vs Panasonic LUMIX G VARIO 100-300mm F4-5.6 II

The bottom line

These cover different focal lengths — the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 is 42mm, the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II is 100-300mm — so they're not really substitutes. Pick by the field of view you actually need: the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 for short-telephoto / portrait, the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II for super-telephoto.

Choose the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 if…

  • You want more light and background blur — f/1.2 is faster than f/4, better for low light and subject separation.
  • You shoot wide — it starts at 42mm vs 100mm for landscapes, interiors and architecture.
  • You prefer a fast, compact single focal length — a 42mm prime over a zoom.

Choose the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II if…

  • You need more reach — it goes to 300mm vs 42mm for distant subjects, wildlife and sport.
  • You want one-lens flexibility — a 100-300mm zoom covers what the fixed 42mm can't reframe.
  • You like close-focus work — 0.21x magnification vs 0.1x.

Where they differ

  • Aperture: the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 opens to f/1.2 vs the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II's f/4 — more light and shallower depth-of-field.
  • Focal range: Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 is 42mm, Panasonic LUMIX G VARIO 100-300mm F4-5.6 II is 100-300mm — different framing and reach.
  • Type: the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II is a zoom (flexible framing), the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 a prime (one focal length, usually brighter and lighter).
  • Weight: the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 is 425g (15.0 oz) vs 520g (1.15 lb) — you'll feel the difference handheld.

Frequently asked

Is the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 or the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II better?

These cover different focal lengths — the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 is 42mm, the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II is 100-300mm — so they're not really substitutes. Pick by the field of view you actually need: the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 for short-telephoto / portrait, the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II for super-telephoto.

Who should choose the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2?

Choose the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 if you want more light and background blur — f/1.2 is faster than f/4, better for low light and subject separation. Choose it if you shoot wide — it starts at 42mm vs 100mm for landscapes, interiors and architecture. Choose it if you prefer a fast, compact single focal length — a 42mm prime over a zoom.

Who should choose the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II?

Choose the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II if you need more reach — it goes to 300mm vs 42mm for distant subjects, wildlife and sport. Choose it if you want one-lens flexibility — a 100-300mm zoom covers what the fixed 42mm can't reframe. Choose it if you like close-focus work — 0.21x magnification vs 0.1x.

What is the main difference between the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 and the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II?

Aperture: the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 opens to f/1.2 vs the Panasonic LUMIX G VARIO 100-300mm F4-5.6 II's f/4 — more light and shallower depth-of-field.

Product
Optical Design
Focal Length42mm100-300mm
Lens TypePrimeZoom
Optical Elements1417
Optical Groups1113
Aperture & Iris
Maximum Aperturef/1.2f/4
Minimum Aperturef/16f/22
Aperture Blades99
Rounded ApertureYesYes
Coverage & Angle
Format CoverageMicro Four ThirdsMicro Four Thirds
Lens MountMicro Four ThirdsMicro Four Thirds
Angle of View29°12° – 4°
35mm Equivalent85-85mm200-600mm
Focus
AutofocusYesYes
Focus MotorSteppingStepping
Focus LimiterNoYes
AF/MF SwitchNoYes
Min Focus Distance50 cm150 cm
Max Magnification0.1x0.21x
Stabilization & Video
Optical StabilizationYesYes
Aperture RingNoNo
Declickable ApertureNoNo
ParfocalNoNo
Internal ZoomNoNo
General
Price (MSRP)$599$549
Filter Size67mm67mm
Diameter74mm73.6mm
Length73mm126mm
Weight425g (15.0 oz)520g (1.15 lb)
Weather SealedYesYes
Tripod CollarNoNo