TMB planetary eyepieces, why two types?

I know the new one is less than half the price of the Super Monos, is that the reason for issuing a second kind?

Richard,

The Super Monos are a 'niche' eyepiece tailored more for planetary and double star observing where a wide field is not paramount. The monocentric design is used to eliminate as much scatter as possible, trading apparent field of view and [higher] cost. I think they are aiming toward the 'aficianado' wishing to exact the last bit of performance from their optical system.

The 'second kind', if you will, is geared more towards good performance at a lower cost, with the added benefit of a wider apparent field of view and better eye relief.

Just my two sense. I have replaced my orthoscopics with BO/TMB planetaries and have been very happy with them. Others have reported similar results.

Richard Anderson said:

I know the new one is less than half the price of the Super Monos, is that the reason for issuing a second kind?

Here's what TMB wrote about that very subject:

http://www.burgessoptical.com/EPs/Planetary-TMB.html

--
Mike