The TMB Paragon eyepieces offer a 69 degree field of view with a tack sharp view and lots of eye relief. Just what is needed for extended gazing at Deep Space Objects. And, just what you would expect from a Thomas Back designed eyepiece.

Each TMB Paragon eyepiece has a serial number engraved on the barrel. The black anodized all-aluminum body is light and good looking. The lettering is highly visible in red light.

Check out the construction and features:

• Designed by Thomas Back of TMB Optical
• Radical new 6 element, 4 group design
• Every Air to Glass surface has Multi Broadband coatings
• All lens edges are blackened
• Coatings have 99.98 to 99.99% transmission (less than 0.02% loss per surface)
• Fully internally baffled
• Internal spacers have flat anodizing and micro-baffles to reduce reflections.
• Flexible two position eyecup
• Apparent Field of View (AFOV) of 69^o
• True AFOV of 68^o (meaning that there is virtually no magnification increase across the FOV)
• Lightweight design
• Lettering with a special, red-light reflection (see picture below, taken in red light)
• Tapered safety undercut
• Oversized locking lens cap with TMB

Read what Rodger Raubach has to say about the Paragon 40 in his May 16, 2006, Cloudy Nights review.

Read Thomas Back's comments on testing of the very first prototype of the Paragon 40 on the TMBOptical Yahoo Group.

Planetary Eyepiece Slideshow

EP Paragon 40mm back side EP Paragon 40mm EP Paragon 40mm top folded EP Paragon 40mm top up EP Paragon 40mm top folded EP Paragon 40mm top up EP Paragon 40mm Step 1 to fold cup down EP Paragon 40mm Step 2 to fold cup down EP Paragon 40mm Step 3 to fold cup down EP Paragon 40mm Step 4 to fold cup down EP Paragon 40mm Serial Number 00001 EP Paragon cap with TMB EP Paragon 40mm Boxed set EP Paragon 40mm in red light