SRF 11 RING FLASH : PISTON RINGS SYMPTOMS : ENGAGEMENTS RINGS FOR WOMEN.
A package including RF-11 Ring Flash and the FC-1 Macro Flash Controller. A ring flash unit that offers macro photography with shadowless illumination when used with the FC-1 Macro Flash Controller. Both TTL auto and manual flash available. Use the FR-1 flash adapter ring to attach the unit to the ZUIKO DIGITAL 50 mm F2.0 macro lens. Can be attached to the ZUIKO DIGITAL 14-54 mm F2.8-3.5 zoom lens via the lens-cover mounting bayonet. The FC-1 attaches to the E-1 digital SLR's hot shoe to control the RF-11 Ring Flash and TF-22 Twin Flash
The cheap ring flash, which consists of a pie tin, a smaller pie tin, and a soup can.
Total cost = $2.97
The setup is rather flimsy, but I was trying to see what kind of results I could get for a first try at ring flash without investing too much.
Not sure of what bug/insect this is but I liked it so I took some pictures of it. Taken with Olympus E-510, EC-20, 50mm, SRF-11 Ring Flash.
This RBC caged roller follower can operate directly on a hardened and ground shaft (HRc 58 min, 16 rms min surface finish) or can be used with matching inner rings. Operating without an inner ring yields the largest possible shaft diameter with greatest strength and rigidity. Axial guidance must be provided by the application. It is recommended to use hardened steel or bronze thrust washers with radial lubricating grooves as needed. This caged SRF roller follower is popular in applications requiring oil bath lubrication, high speed, or in applications greased for life. RBC Bearings has been providing bearing solutions to our customers since 1919. A publicly-traded company (NASDAQ: ROLL), RBC currently has 23 manufacturing facilities worldwide, with 18 located in the USA.