* Astronomy

SkyWatcher Planetary UWA eyepiece

1.25" 8mm 58 Degree TMB Planetary II eyepiece

TMB Planetary II eyepieces are some of the most respected eyepieces available.  They provide exceptionally high power along with very comfortable eye relief making them one of the best eyepieces around.
6 elements and 58 degrees field of view coupled with 14mm eye relief.
They are noted for their high contrast and definition because of their high light transmission and minimal light scatter.
The eyepiece is brilliant for lunar and planetary work but is also a very capable performer at splitting double stars and showing huge detail in objects such as nebulae and globular clusters.

£39.00
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Ed ~ The eyepiece does indeed provide a very bright and contrasty image, and with a 500mm f5 scope frames the lunar or solar disk perfectly. The downside is without placing the eye exactly at the 'sweetspot' there is a lot of optical vignetting (or 'kidney bean blackout'). The barrel can be unscrewed out slightly to raise the rubber eye guard to get the eye distance just right.  A small tip for beginners is to make a large peephole (pencil diameter hole) mask which can be place within the rubber eye guard to position the eye exactly central to the eyepiece.

Another small tip is that cheap 49mm or 48mm photographic filters can fit snugly over the raised rubber eye-shield.