645Z IR

http://www.ricoh-imaging.co.jp/japan/products/645z-ir/

Old Ephotozine HD PENTAX-D FA* 70-200mm f/2.8 ED DC AW Review

https://www.ephotozine.com/article/pentax-hd-pentax-d-fa--70-200mm-f-2-8-ed-dc-aw-review-27358

Has this lens not yet been released? How come they tested it back to April already? :-o

D FA★ 70-200mm F2.8 is Delayed Again!

http://news.ricoh-imaging.co.jp/rim_info/2015/20151113_009888.html
(in Japanese)

They say, "In order to meet the performance which was originally expected." And the new release time will be advised later in December. So, what has gone wrong with this lens!? :-o