Hi Raf, I mounted the 25mm andover in the cell from a real cheapie barlow lens (throwing the lens away) and then mounted that on a 2" to 1.25" filter adapter https://www.365astronomy.com/365Astronomy-2-to-1.25-Filter-Adapter.html I then replaced the 2" snout on the Quark with a slightly longer one ...

How is the seeing in your location? With its 4.2x telecentric the Quark will give more high power views in a 6” scope. You may have to downsize to a 4-5”

Thanks for the reply Mark!

I’m thinking of taking advantage of the Lunt sale and getting a 60 mm single stacked scope. Is it possible to double stack it with a Quark? If so will I need a blocking filter or is the Quarks bf okay?

Hi All I have a friend with a machine shop and he made me a custom cell for my C8 it fits like the dust cover. He actually has some extra material to make a few more if anyone is interested. This one is made of aircraft aluminum and solid. Tomorrow we are going to go over the design to lighten the w...

Very nice images! And a beautiful rainbow!! I have a noob question on your SSM. I just got one recently. Is it better to have a higher number for your seeing or a lower number? My thought was that you want 1 arc second seeing over 6 arc second, but when the number goes down the graphic turns to red ...

Hi All I'm looking to add Calcium K line to my set up. I will be using it on a C-8 and a f/8, 6" refractor with an Aries Tri-band DERF. I will be imaging with an ASI174 or possibly an ASI290. Will I need to use the blocking filter with the Calcium filter and if so which one would you recommend? Of c...

I have the Quark ha chromosphere and like the way it works but not sure what to expect from calcium h as opposed to k. Will you be able to “see “ prominences, does it need a telecentric or is f ratio not critical? I will be using it with a tri-band derf on a 6” refractor and a 8” sct. Would I be bet...

Thanks for the warning! I realize you get what you pay for especially in this niche of astronomy. What are the most cost effective and reliable ways of Ca-K observing? Is the Quark worth getting or would most agree that the Lunt is a better choice or is there another option? Sorry for the noob quest...

Is anyone familiar with this filter? Will it show prominences? https://www.ebay.com/itm/Optical-Filter-Astronomy-393-37SC0-2-Ca-II-K-filter-1-25-Extremely-2Angstrom/312192287992?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D9c6e255992d440259c82ba2f5807a718%26pid%3...