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Pentax 01 Standard Prime (2011) — 47 mm equivalent; Pentax 02 Standard Zoom (2011) — 28–80 mm equivalent; Pentax 03 Fisheye (2011) — 17.5 mm equivalent; Pentax 04 Toy Lens Wide (2011) — 35 mm equivalent; Pentax 05 Toy Lens Telephoto (2011) — 100 mm equivalent; Pentax 06 Telephoto Zoom (announced in 2012) — 83–249 mm equivalent
A review by Imaging Resource emphasised its "excellent high ISO performance" and "excellent print quality". [26] In September 2010 Pentax announced the K-r, a 6 frames per second 12.4 megapixel camera [27] and the K-5, a 7 frames per second 16.3 megapixel camera. [28] These cameras use a new, faster autofocus system, SAFOX IX. [29]
This avoids one of the principal challenges faced by the larger, two-part pumps: maintaining a water-tight seal at the point where the pump drive shaft enters the pump body. Small- to medium-sized circulator pumps are usually supported entirely by the pipe flanges that join them to the rest of the hydronic plumbing. Large pumps are usually pad ...
Due to the rotation, water is then picked up by the tube and pumped upwards in the hose. The coil pump, as many low lift pumps, is commonly used for irrigation purposes and for drainage of lands. It is currently still used by farmers in Asia. [1] The coil pump was built as an alternative to the Archimedean screw. Unlike the Archimedean screw ...
Water Quality Association (December 2007) Welwyn Hatfield Times (December 2007) William Morris (fictional character) (December 2007) Wolff & Associés (December 2007) Workability Europe (December 2007) WorldWide Volunteering (December 2007) (I Got No Kick Against) Modern Jazz (January 2008) 2004–05 Heineken Cup pool stage (January 2008)
The technology is simple, typically using a parallel-bar double-cam lift driven from a low-power electric motor, although the number of pumpjacks with stroke lengths 54 inches (1.4 m) and longer being used as water pumps is increasing. A short video recording of such a pump in action can be viewed on YouTube. [6]
A broken India Mark II pump in rural Uganda A busy Mark II pump in Uganda. Children often bear the responsibility for collecting water. Durability needs to be incorporated into pump design to the handle the heavy use (and abuse). The India Mark II is a human-powered pump designed to lift water from a depth of 50–80 m. [1]
The Pentax K-mount, sometimes referred to as the "PK-mount", is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras. It was created by Pentax in 1975, [1] and has since been used by all Pentax 35 mm and digital SLRs and also the MILC Pentax K-01. A number of other ...