Baader UFC system - which parts do I need?
Thank you for your interest in our UFC (Universal Filter Changer). Before you fill out this form, please take another look at the various blog posts that already exist on the use of the UFC...
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What advantages does the SunDancer have over much cheaper systems?
There are some H-alpha systems that also deliver impressive results at a much lower price. However, to make this possible, compromises are necessary in terms of image detail, resolution (maximum magnification), field size or durability...
I have stopped down my large telescope to f/10 (or 80 mm), but I can hardly make out any details. Do I need special eyepieces, or is my SunDancer defective?
The 3x telecentric system allows you to achieve very high magnifications or very small exit pupils very easily. A good guideline for the maximum magnification for H-alpha is an exit pupil of about 0.7-1mm, or...
Do I have to/can I adjust the SunDancer?
All SunDancer II filters are subjected to final testing before they are released for sale. As delivered, the micrometer screw of the tilting device can therefore be used to get finetune a high-contrast image. For...
Do I need extension tubes or a special star diagonal for the SunDancer?
The focus position of the SunDancer is pretty much the same as that of a 2" eyepiece if you use the 2" nose-piece cut into the TZ-unit. So you will usually not need extension tubes...
When will the SunDancer become available again?
Unfortunately, we cannot predict the availability in general, as we usually already have pre-orders from private buyers and dealers, which will be delivered first as soon as we have new Sundancers available. Also, the etalons...
Barlow Q-turret 2.25x - what is the focal length of the lens. By measuring on images and using the formula for magnification I get the focal length to appr. 35mm. But I have seen in an answer from you that you say the focal length is 45,5mm. How do you measure the focal length? And is your answer still 45,5mm
Answer: 45,5mm is the value which we have for this Barlow in our design - so we did a quick-and-dirty-test of the magnification. To do so, we used a finderscope which gives enough field of...
Why is the Neodymium Filter only 1mm thick
Kundenfrage: Why is the Neodymium Filter only 1mm thick? For me, this is a problem because a) focusing and (much important) b) backfokus, sinc I have the filters between coma corrector and camera sensor. Will...
How do I adjust tilt and achieve micron adjustment with the FCCT, the UFC and T-2, M48, M54 and M68 Tilter?
Each tilter essentially consists of 3 pairs of opposing set screws which independently move the inner tilt mechanics and are easily accessed from the side using the included hex key (Allen wrench). These screws have tapered...
My QHY filter wheel stops and cannot be positioned, what can I do?
Within the last year (2021) we had twice the case that the pressure spring which holds the stepper motor in the filter wheel was too strongly tense, whereby the connection motor/filter wheel placed the rotating...
