TMB Super Mono Info's
- TMB Super Monocentric Eyepiece 1.25", MADE IN GERMANY
On request for amateurs with real high end Planetary Telescopes the
sources for high end Planetary eyepieces have been very limited in
past time, after Carl Zeiss Jena discontinued here famous Abbe
orthoscopic eyepieces and Pentax discontinued here famous SMC-
Due the big interested, TMB-Optical started to design a new
monocentric eyepiece, which is a triplet cememented eyepiece with
only 2 air to glas surfaces, well known from Zeiss jena as an
noncompromissing , free of ghost image , highest contrast eyepiece.
The negative part of this eyepiecedesign is the narrov field of only
30° FOV and the extremly short eyerelief
The positive part of this design:
- zero ghost image
- highest contrast of any eyepiece design
- higher concentration on the observed detail due the narrow field
- super high transmission broadband coating
The quality controle is guaranteed due a famous manufactor who is
located here in Germany.
Focallenght Diameter Fieldstop Field of
View Eye Relief Size Exportprice Retail
in Europe incl. 16% VAT
4 mm 2.20 mm 30
degree 3.4 mm 1.25" US $
195 Euro 195
5 mm 2.72 mm 30
degree 4.2 mm 1.25" US $
195 Euro 195
6 mm 3.25 mm 30
degree 5.1 mm 1.25" US $
195 Euro 195
8 mm 4.25 mm 30
degree 6.8 mm 1.25" US $
195 Euro 195
10 mm 5.30 mm 30
degree 8.5 mm 1.25" US $
195 Euro 195
Above prices are EX Germany, plus shipping cost
shipping cost for outside of Europe
- noninshured surface post US $ 20 per shipment
- inshured UPS US $ 60 per shipment
The new eyepieces are a non limited production run. However now for
the beginning we have an big waiting list, so please ask for actual
delivery time for your new order.
Under new development: a high end matching Barlowlens 1.25"
Follow up: a first review from the Master, Thomas M. Back
----- Original Message -----
Sent: Wednesday, May 14, 2003 7:30 PM
Subject: [tmboptical] TMB Mono vs. the Zeiss Attack
Yesterday the skies were clear, but windy. This normally
doesn't bode well for seeing at night. On the chance that
the seeing could be good enough to test the three Zeiss
eyepieces against the TMB Super Monocentric, I set up my
personal TMB 100mm f/8, on a Losmandy GM-8, around 6:00PM.
I got very lucky: the wind died down completely at 8:30,
and the seeing was very good, 7 with moments of 8, better
than the night of the first tests.
This night I just used Jupiter as the test object, and a
great choice it was. The Moon was not tested, as I needed
to concentrate as much as possible on the eyepieces, because
the seeing could go downhill at any moment. It always amazes
me how detailed Jupiter can be in a 4" aperture, assuming the
optical quality is high, and the seeing is good. It does lack
the color saturation of larger apertures, but for fine detail,
a 4" apochromat is an effective instrument, and superb for
testing oculars, barlows and diagonals, not to mention wide
field deep sky views.
Once again, the eyepieces under test:
Zeiss 6mm Abbe 1.25" orthoscopic
Zeiss 6mm Abbe .965" orthoscopic
Zeiss 6mm .965" Monocentric
TMB 6mm Super Monocentric
This night cemented my thoughts and the performance of each
eyepiece even more than the first test. The eyepieces tested
are the "Big Guns" of planetary eyepieces (a good example of
a 6mm Pentax SMC ortho would be included in that category too).
All four eyepieces were obviously superior planetary eyepieces.
But it was easy this night to tell noticeable differences in
The Zeiss 6mm Abbe .965" orthoscopic came in last place. The
moment I brought my eye up to view Jupiter, the image had a
decidedly yellow cast. It also had the dimmest image, quite
noticeable compared to the eyepiece with the highest trans-
mission. I could see where this eyepiece would really excel,
in an achromatic telescope. The "yellow" filtering would be
a plus in suppressing the blue/violet secondary spectrum, and
in that case, the ranking of this eyepiece might well have
been different, if an achromat was used in the tests. It
showed very fine detail on Jupiter, but was not the best
in this regard. No ghost images, curvature of field noticeable
at ~35 degrees, slight lateral color near the field stop, very
slight gray field, with the light scatter field around Jupiter
of about 130 arc seconds. Still, one could be very happy owning
a set of these Zeiss eyepieces.
The Zeiss 6mm Abbe 1.25" orthoscopic and Zeiss 6mm .965"
Monocentric, was too close to call, so I ranked them 2a and
2b, in no particular order. But that isn't to say there wasn't
obvious differences. Both eyepieces had great purity of color
and high transmission. Excellent definition in both eyepieces,
the edge going to the Zeiss Abbe in sharpness, but slightly
better contrast in the Zeiss Mono. Darker field than the
Zeiss .965 Abbe, very close to call which one was superior,
maybe a slight edge in the Mono, but with one caveat (see
below). The 6mm 1.25" Abbe had no ghost images, curvature of
field noticeable at ~40 degrees, slight lateral color near
the field stop, with the light scatter field around Jupiter
of about 110 arc seconds.
The 6mm .965 Mono's curvature of field was noticeable ~25
degrees, slight lateral color near the field stop, with the
light scatter field around Jupiter also around 110 arc seconds.
But a big surprise. The Zeiss Mono had a single ghost image!
It was directly opposite Jupiter, and fell right on Jupiter
when Jupiter was in the exact center of the field. A very
slight de-centering gave the best images, and the ghost
increased in intensity as it moved away from the planet. By
no means a fatal problem, but I was surprised just the same.
Still, even with this ghost, this 50 year old Zeiss 6mm
Monocentric was the equal to the modern 6mm Zeiss Abbe, and
considering contrast (assuming a very slight de-center), was
The TMB 6 mm Super Mono, the very second I viewed Jupiter,
it was obvious which eyepiece of the four was the best. The
field was amazingly black, almost surreal. This was not a
subtle difference. No ghost images, color purity and fidelity
was the best, brightest images, the smallest light scatter
field at ~90 arc seconds, the best contrast, and sharpness
was at least equal or better than the sharpest planetary
eyepiece I've ever had the pleasure to use, the Zeiss Abbe
6mm 1.25". No lateral color even at the field stop, very
slight field curvature near the field stop, which did not
effect the moons sharpness, but just dropped the contrast
on Jupiter slightly at f/8. All the eyepieces exhibited
this curvature of field, but who wants to view the planets
at the field stop? Every eyepiece in this test showed
extremely low off-axis astigmatism.
The TMB Mono was electrifying to use on Jupiter. I have never
seen a more transparent view of the sky and Jupiter than though
this eyepiece. It gives the impression that the primary optics
and seeing are the only limitations in the image quality. I
personally can't wait to use the whole set on all my telescopes,
mono viewing, and binoviewing.
Thank you all for making this project a reality. And a big
thanks to Mark Hammons for the Zeiss .965" Mono and Abbe. I've
always wanted a set of the highest quality monocentrics for
my own use, and now I can share these with my friends and
customers alike. We are all living in a very exciting time
in amateur astronomy.
- Hey, Markus, you wouldn't be Spammin' us here now would ya?
I mean, whenever I see a huge, unsolicited product alert with
attached review posted by a retailer for no thread-related reason, I
just naturally think of tinned pork meat of dubious nutritional
Am I wrong here?? Or is it just my allergies acting up.
FYI - common courtesy for retailers making non-thread-response
product announcements on newsgroups and such is to place an "ANN: "
or "COMMERCIAL: " at the beginning of the subject line.
It is a free univese, however, so you are, of course, free to behave
like any animal by-product you want :-)
-Paul S. Walsh
--- In William-Optics@yahoogroups.com, "Markus Ludes"
> TMB Super Monocentric Eyepiece 1.25", MADE IN GERMANYthe
> On request for amateurs with real high end Planetary Telescopes
> sources for high end Planetary eyepieces have been very limited in
> past time, after Carl Zeiss Jena discontinued here famous Abbe
> orthoscopic eyepieces and Pentax discontinued here famous SMC-
- Paul, I think this particular post, although commercial in nature, is
certainly relevant to the group and not at all off-topic spam. Markus
sells WO equipment and has every right to post information that the
group readers will find interesting and relevant, IMHO.
Considering the upcoming Mars opposition, a good planetary eyepiece
is more than relevant, don't you think? :)
--- In William-Optics@yahoogroups.com, "Paul Walsh" <filmdos@n...>
> Hey, Markus, you wouldn't be Spammin' us here now would ya?....
- No problem - I see your points and I'm willing to concede that it could be
viewed as relevant - and I'm certainly willing to be in line with the
desires of the group regarding this kind of thing - it was just that the
posting struck me as being out of place - but participation is sparse for
this group so ANY post can seem out of place, I guess - including mine :-)
----- Original Message -----
From: "Paul K" <pkane2001@...>
Sent: Friday, May 16, 2003 5:26 AM
Subject: [William-Optics] Re: TMB Super Mono Info's
> Paul, I think this particular post, although commercial in nature, is
> certainly relevant to the group and not at all off-topic spam. Markus
> sells WO equipment and has every right to post information that the
> group readers will find interesting and relevant, IMHO.
> Considering the upcoming Mars opposition, a good planetary eyepiece
> is more than relevant, don't you think? :)
> -Paul K
> --- In William-Optics@yahoogroups.com, "Paul Walsh" <filmdos@n...>
> > Hey, Markus, you wouldn't be Spammin' us here now would ya?
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