Posts Made By: Markus Ludes

from our experience the BF 10 in the Maxscope offers a wide better more homogeneity field than with BF 5, images all over the sun looking better than with BF 5

Markus

Hi All

I see the customers talking here do not have any input, so let me give some input

1, blackened edges: Blackened egdes are necassary only, in not well baffled, fiedlstopped eyepieces. ZThe famous Zeiss Abbe Orthos does not have either a balackened edge and it does not help or improve anything in the TMB Monos due the perfect baffling. I know many eyepieces with blackened edges and ghosting images or reflections

2,3 total runs of eyepieces have been made so far , abouu 3000 pc in total. In first run about 10 pc showed a optical problem and unsharp fieldstops. In second run about 2 or 3 showed a optical problem and a handfull still a fieldstop not total perfect round
In third run, non of the eyepieces have had either a optical or a fieldstop deffect. This is a sign of a great improvement of the manufactor. Also take into account from 3000 eyepieces, about 30 pc showed a problem, most of them in first run, a few in second run , non in last run, but even in total this is about 0.1%, in a big serial production anybody would he happy to have so small quantitys blames.

Also the TMB Mono prooved already all over the world, to bet visible the famous Zeiss and Pentax orthos, reviewed by hundrets of users. Now a reviewer of a magazin comes using a fast reflector with attached comacorrector to review a high end planetary eyepiece. Anybody who is doing serious planetary Observing knows he need a, a high quality telescope, b, a very good seeing, c, a perfectly 100% collimated telescope. Anybody who owns a F/4.5 newton knows how extremly difficult it is to get and also hold such telescope in perfect collimation.
Under less then perfect overal conditions, nobody can see the diffrence between a standart quality and highest quality item.

All this is of course no excuse that 3 bad eyepieces have gone to a magazin review, but we talking about 4 pc total found yet from second run, which showed a problem and non of last run.

The chance was till the second run to get a poor eyepiece by 0.1%, the chance after third run so far is 0,0 %

Take such test telescope and compare a cheap chinese Plössl for $ 20 against a $ 80 Tele Vue Plössl and you may not see any diffrence.
But if you use a excellent Planetary telescope, excellent collimated, under excellent seeing, then you see a diffrence, for shure.

Sky and Telescope did with this review a excellent job to protect the market for one of here biggest advertiser, but this method is very coman in all magazins, you get what you pay for, this is also valid for advertisers. Pay a premium each month and you get many and positive reviews, pay small or nothing and you get kicked into the ass

Markus

next image

Markus

we getting this year 30 pc TMB 95 mm f/7 Triplets

Markus

The scope with German Equatorial Mount cost about US $ 690,000, we making all mechanics and goto mount here in germany, delivery time 2 years

markus

Like to post some new actual images recently made by a customer of mine with his new TMB 115F/7 Apo

clear skies

Markus

Kim

usual the APQ have been designed to be used with the Zeiss M44 diagonal prism. If you use in this modells a stardiagonal mirror, you will see quickly the differenc,e by getting color and some sphericla aberration. Recently I have seen also so APQ which have been designed for mirror use, not prism use.

There is no info on the optics which is for what designed, only a quick startest will show it

best wishes
Markus

one more image

Markus

Bill,

there is no reason to keep the 4"F/15, the chromatical aberration even if small damaging faintest planetary detail against a apo. Since you know the long focuse scope now, dont get a to short focuse apo for planetary observing, keep at F/8 to F/9 as apo and you will enjoy it more then your 4"F/15 achromat

good luck in your decision
Markus

how about the new 2.5" dual rate Moonlight focuser, designed for APM ?

Markus