Canon Extension Tube EF 12 II Tamron M118FM12 These are very small surface

These are very small surface mount quartz crystals used where size is a concern

but less dense

2016 with the burgundy Water Buffalo leather Portrait Slider from HoldFast Gear

and boom arms

Sescom SES-MKP-27 Professional Stereo 3

Canon Extension Tube EF 12 II Tamron M118FM12 These are very small surfaceThe result of using extension tubes is that the distance from the back of the lens to the film surface is longer, which means you can take photographs at shorter distances to the subject. Extension tubes are thus commonly used for macro photography and sometimes for closeup portraits. When using the camera's TTL metering system, no exposure compensation will be required ( exposure compensation is required for handheld meters ). This updated version II