New Apo's

just in case you do not want to go further down to my APM section to discuss , I will post our announcement for discussion here as well :

a small announcement to make you guys a bit nervous for 2010 :-)

we plan 3 new apo refractors for 2010

1, inexpensive 6"F/8 Doublet ED as replacement for Skywatcher, celestron, Meade 6"F/8 achromat lenses

2, new 4 element , double ED , 150 mm f/1000 ( F/6.67 )superapo that is fully diffraction limited from h line to r line (near infrared) and have a huge corrected flat field (60 mm)

3, new 4 element , double ED , 140 mm f/700 ( F/5 ) SuperEDapo that have a huge corrected flat field

All Optics will be made by LZOS in Russia . All Tubes for the 4 element apos will be designed with best focuse compensation and build in germany.We working with the lens designer, LZOS and tube designer hand in hand to prevent problems other companys having for alignment and focuse compensation.

So far we have the optical layouts. Next step is to get glas prices , then tube design with tube prices. Then we will go in production.

We will do changes and optimisations for each melting run to get out the maximum performance.

We will present a full documentation of the work which gets done .

Dont hurry , it will take time . We will make samples and do intensive imaging testings under diffrent conditions and temperatures.

We will enter the product to the market , when its perfect in all respects , not before.

We promisse the best Apo Astrograph on the market, or it will not be sold.

Give us the tiime, we keep you about each step informed.

thanks for your interest

Markus Ludes
APM-Telescopes

Markus,

I applaud you for taking a step in the right direction with the ED doublet for the 6” achro. I also have no doubt the other two scopes are going to be world class astrographs, but I must ask why do manufacturers keep fighting for the same piece of the pie? The 140mm and smaller astrograph market is as crowed as a beach front during a hot summer day.

There are a great many of us who really don’t care about collecting photons with CMOS sensors, but with our eyes. Like imagers, we also want a nice piece of glass, just don’t need the 3rd or 4th element, a focuer than can move an elephant or a heavy tube. All I ask is for a well corrected ED doublet lens 180mm - 200mm in a light weight, well baffled tube and a decent 2 speed focuser at a reasonable price. Is this too much to ask?

I would love to hear comments and opinions from you and others on the technical and economic challenges of bringing this scope to market.

Regards,

Angel

Glad to hear the news. It seems there will be two companies with larger ED refractors next year.

Dave

Markus: any more thoughts on large (6+ inch)
long-focus (F/12 or more) ED doublets?

**1, inexpensive 6"F/8 Doublet ED as replacement for Skywatcher, celestron, Meade 6"F/8 achromat lenses**

Markus,

You can put my name on the list for one of these if they become availiable. [email protected]

Keith

Hi Guys

right now I am the weekend in New Jersey , but going tomorrow to Moscow for the monday meeting with LZOS.
Cross your fingers and wish me some luck in my business talk with them for the new modells.
I hope I come home thuesday with some news.

have all a nice weekend, nicer then here in the raining New Jsersey :-)

Markus Ludes