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  • Manual Zeroing is not working, even though I followed the manual step by step. What am I doing wrong?

    Thanks for bringing this to our attention! On page 8 of the SD II Controller manual we have indeed noted an error. With variant 2 (manual homing), steps 1+2 must first be carried out as in variant 1, not steps 1-3 as incorrectly indicated. We apologize for the inconvenience. The corrected manual can be downloaded here.
  • With eyepiece projection, the image at the edge is extremely blurred. What could be the reason for this?

    For eyepiece projection with our Morpheus and Hyperion (zoom) eyepieces, we recommend a distance between eyepiece and T-ring of 40 mm on full-frame cameras, in addition to the 55 mm that were the flange focal distance of all "SLR" and DSLR camera bodies for decades when a T-ring was placed in front. Only with a T-ring that maintains this distance can old lenses with a T-thread deliver sharp images. Therefore, it has been tried to...
  • Can I use the SteelGo II Software also with Windows 7?

    To successfully connect the SteelDrive II Controller with the SteelGo II Software using Windows 7, current virtual COM-port drivers need to be installed. Download: https://www.ftdichip.com/Drivers/CDM/CDM21228_Setup.zip
  • My spectra show dark stripes (see mark in picture) - where do they come from?

    Dark horizontal streaks or stripes in the spectrum are caused by dust deposits on the slit plate of the spectrograph. A partial attenuation of the spectrum results from dust spots (“Donuts”) on the camera sensor. Let's start with the slit plate of the spectrograph. A dust grain deposited on the slit becomes apparent across the spectrum as a horizontal, dark line perpendicular to the spectral lines. The more frequently the DADOS is attached to the...
  • Off-standard single filter sizes from Baader - why not:

    Quite often we receive requests for a single filter in an off-standard size. In all cases we are sorry that we must answer as follows: Sorry (we know it would be so very much cheaper in production - and we would be so much more flexible to fill special requests) - but we have decided long ago to not cut or saw our filters from large plates because this would leave the coating stack open...
  • Unmounted Filters – which side should face the telescope?

    Question in Detail: I just bought LRGB 36mm unmounted filters. I have question: which side of filter should be placed towards telescope? Is it better way of distinguish than "more shiny surface towards telescope"? Answer: Always put the more reflective side towards the telescope side. To guide you we already put a small arrow on the filter rim, on those filters were the position matters. This arrow indicates which face of the filter should be directed...
  • Solar FAQ on www.astrosolar.com

    Please visit our website www.astrosolar.com/en/faqs for many questions and answers on our solar products, such as AstroSolar Film, Solar Viewers and mounted Baader Solar Filters.
  • ClickLock clamp is spinning where it shouldn't

    Question in Detail: I just received a Baader 2" Clicklock TAK-adapter M72. After a few uses it's spinning where it shouldn't. If I hold the inside on the bottom near where it threads onto the scope it works. Can you tell me what to do? Can I repair it? Answer: This might be a mistake done here during assembly. Please try this fix. If it does not help please return the Clicklock clamp to us...
  • What Narrowband / lines filter (O-III, H-beta, H-alpha, S-II) can improve the results of my Canon DSLR with APS-C Sensor?

    If you want to create absolutely beautiful color photos of bright deep sky objects (entry level) and wish to work with sophisticated techniques of Astrophotography (and the correct tracking), then your camera is ideal. For advanced working with long exposure times, i.e. with narrowband emission line filters, the DSLR is less suitable. The reason is partly in the manufacturer’s narrow cut filter that is installed before the camera’s sensor only allows some of the main...
  • Will the conversion affect the position of the focal plane?

    The ACF-/BCF- replacement filter has exactly the same effective optical thickness as the original AA filter. During the conversion process the focus is calibrated to the best of our ability. In addition: the conversion will not affect the auto-focus function at all. That is one of the advantages of having our professional modification service.

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