Panasonic/Leica's premium MFT prime — same as ID 801, possible duplicate of the Summilux 25mm f/1.4.
The Panasonic Leica DG Summilux 25mm f/1.4 ASPH. is a fast normal prime for Micro Four Thirds cameras, co-branded with Leica under the DG Summilux designation. The Summilux branding indicates f/1.4 maximum aperture in Leica's naming scheme; ASPH. confirms an aspherical element. Provides approximately 50mm equivalent on MFT. MFT mount.
f/1.4 maximum aperture. 25mm focal length (approximately 50mm equivalent on MFT 2× crop). ASPH. (aspherical element). Leica DG branding. At approximately 200g. 46mm filter thread. Autofocus. Micro Four Thirds mount.
The DG Summilux 25mm f/1.4 ASPH. is one of the most popular fast primes in the MFT ecosystem, providing a normal 50mm-equivalent field of view with f/1.4 subject separation. Leica DG branding indicates Panasonic lenses developed with Leica design involvement. The compact 200g size pairs well with compact MFT bodies.
On the used market the Panasonic Leica DG Summilux 25mm f/1.4 ASPH. is a popular MFT fast normal prime. Condition checks: MFT mount contacts, AF response, 46mm front element for marks, aperture blade smoothness at f/1.4.