If you have a more than okay Quark - the single stack Lunt will not show more details - but you can image the full disk. Side by side my 0.6 A Quantum and a Bresser 127mm f9 doblet was a little bit better on surface details and stunningly better on prominences... A very good Quark at the same meeti...

I would do as said by Mark and Alexandra. If you are happy with the Quark, go for the 150 mm f/8 and possibly a Baader ERF. Thanks Christian for your answer!! It seems like a good option to go for a doublet and use my Quark. One more question... What is the difference in image quality between a Lun...

Hello everyone! I want to buy a 150 mm aperture solar telescope, to photograph prominences and active regions in more detail. As I live in Argentina, with the restrictions that my country imposes on imports, I cannot fail in the choice of equipment, since it would be impossible to return or exchange...

Hello everyone!

I have a Coronado SolarMax II 90mm BF15 telescope and a ZWO 290 MM camera that works fine for details, but now I want to take pictures of the full disk. Which camera do you recommend me?

Thank you!

marktownley wrote: ↑Thu Aug 22, 2019 2:59 pm What about the other end of the diagonal?

It is also painted black

marktownley wrote: ↑Thu Aug 22, 2019 6:30 am Is the inside of the nosepiece bare metal on the bf15 with the 90?

The inside of the nosepiece is black painted metal.

Hi everyone!!! I recently changed my Coronado Solarmax II 60mm for a Coronado Solarmax II 90mm BF15. When I capture images with my ASI 290MM placed directly on the diagonal, I have no problems. But when I use a barlow lens or an extender, a reflection appears and I cannot remove it. What can cause t...