Burgess Optical Planetary Eyepieces

The TMB Paragon is the ultimate wide field eyepiece. The radical new design eliminates almost all aberations, giving the observer a pristine view of the heavens. The coatings are the best available, with ultra-high transmission, giving the observer clear, bright views of the heavens.

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

To lower the eyecup, grasp the eyepiece in both hands with the thumbs together and pressing down one side of the eyecup, slide the thumbs in opposite directions around the eyecup while pressing the edge of the eyecup against the body of the EP. Before the thumbs meet, the eyecup will snap into the down position. There is a distinct POP sound when the eyecup snaps down. See the pictures below for an example of how to lower it.

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.

TMB Paragon Specifications

EP fl	dia	AFOV	fs	ER	ht	bh	bh-d	bar	b-dia	fp	wt
40mm	2"	69^o	1.8" 45.7mm	16mm	5-3/16" 131.5mm	4" 101.5mm	3.6" 90mm	1-3/16" 30mm	2.5" 64mm	0" 0mm	1lb 1.5oz 500gms
35mm	2"	69^o		16mm
30mm	2"	69^o		16mm
24mm	1-1/4"	69^o		16mm
20mm	1-1/4"	69^o		15mm
16mm	1-1/4"	69^o		13mm

dia = Barrel diameter
AFOV = Apparent field of view
fs = field stop diameter
ER = Eye relief
ht = full height of EP, including eyecup
bh = body height, eyecup up
bh-d = body height, eyecup down
bar = barrel height
b-dia = body diameter
fp = focal plane distance from bottom of EP body
wt = weight

Products

Eyepieces: TMB Paragon