sc_rufctr
Leica nuts
Great stuff Mr Chou. Keep them coming 🙂
About prices, a very nice looking copy (with original hood !) of the 21/3.4 just was just recently here in the classifieds and sold for about $850.
The 21/4.0 is the older (first) version and was made in both, screw-mount and m-mount. Not that great optical performer but sought-after by the collectors. The following design, 21/3.4 was only made in m-mount but for a quite long time. It is nearly free from distortion (symmetric design) and has a fantastic center-sharpness. Strong vignetting in the corners is the price to pay for this design and lacking TTL metering (the rear element blocks the meter cell).
I like mine ! 🙂
Nice... Mr Chou, How are you metering with your M7 and Super Angulon?