@cjdincer The Konica lens is sharp at 2.8. SLRMagic 35mm 1.4 would have been great, but it has a focusing issue. If you are a fan of AF lens, Olympus 45mm 1.8 would be nice.

I'm definitely not up for shelling out $600 for testing it out. Most cheap vintage lenses are not sharp at 1.4 or 1.8. Usually they must be stepped down to 2.8 or higher.

LoL. No idea what it is. But it looks funny.

Vintage lenses used to be hot. But I'm done with vintages. I sold all except the Hexanon 40mm because it's small and cute :)

Most of time I use Olympus 45mm 1.8 instead of the Hexanon. The modern MF lenses like Nokton, HyperPrime, and Samyang are optimized for digital sensor. Leica DG 45mm 2.8 should work nicely with Lumix 14mm and 20mm. It supports MEGA OIS and macro mode, too.

About Metabones Speed Booster... EF 24-105mm f/4.0L IS USM looks enticing. Then add Samyang 50mm T1.5 CINE when it's available. Pop the adapter. There goes a fast 35mm T/1.1 :)

As a standard wideangle, it’s not super-wide, but it’s adequate for any landscape or architectural work. It is capable and adequate for professional work as well. I’m not the type of guy that buys into all the marketing hype and I’m definitely not a pixel-peeper either.

For a pancake lens I was mesmerized by the quality of the glass

http://talkingtree.org/my-love-for-the-panasonic-lumix-14mm-f2-5-pancake-lens-perfect-for-landscapes/

Updated 14mm

PR

Panasonic is proud to announce a new digital interchangeable single focal length lens, the LUMIX G 14mm / F2.5 II ASPH. (H-H014A) based on the Micro Four Thirds system standard. Offered in black and silver, the new LUMIX G 14mm / F2.5 II ASPH. matches the GM series of LUMIX Digital Single Lens Mirrorless (DSLM) cameras – the new DMC-GM5 or DMC-GM1. The lens will be available at www.shop.panasonic.com and valued channel partners in mid November.

The LUMIX G 14mm / F2.5 II ASPH. features a 14mm (35mm camera equivalent: 28mm) wide angle and F2.5 high speed with sharp, high contrast image rendering. Taking advantage of the wide angle of view and deep depth of field, the compact LUMIX G 14mm / F2.5 II ASPH. offers excellent performance for shooting not only landscapes but also general photography.

Comprised of 6 lenses in 5 groups including 3 aspherical lenses, the lens system achieves both compactness with short overall length of apprpx.20.5mm and high optical performance. It also excels in shooting subjects with components of straight line including architecture thanks to the minimized distortion. It incorporates a superior inner focus system which enables excellent resolution and contrast from full life-size magnification to infinity. The inclusion of a stepping motor makes the focusing action smooth and silent for use in both photo and video recording to be classified as a LUMIX HD Lens. When mounted on the Digital Single Lens Mirrorless (DSLM) cameras of LUMIX G, users can take advantage of the high-speed, high-precision Contrast AF system.

Seven blades give the aperture a rounded shape that produces an attractively smooth effect in out-of-focus areas when shooting at larger aperture settings. Highly reliable metal mount assures durability for active use, and uses multi-coated lens elements that minimize ghosts and flare to further enhance its shooting performance.

The review lens didn't quite meet expectations for either camera's 16-megapixel sensor with JPEG files, although our results were very close with raw files from the GH4 and just met expectations with raw files from the E-M1. Resolution peaked at f/4, with a very gradual decline to around f/7.1, where diffraction began to take effect.

http://www.photoreview.com.au/reviews/lenses/m4-3/panasonic-lumix-g-14mm-f-2.5-ii-asph-h-h014a-lens