Smerral Posted May 19, 2022 Share Posted May 19, 2022 The sun this morning in Ha and Cak. The Ha is an 8 pane mosaic taken with a double stacked PST. The Cak is a similar mosaic done with the Altair Astro 102 ED-R stepped down to 70mm, and the Lunt CaK B600. Camera was the Altair GPcam V2. 3 Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted May 19, 2022 Share Posted May 19, 2022 It’s looking very active. Two great images. 1 Quote Link to comment Share on other sites More sharing options...
Cliff Posted May 26, 2022 Share Posted May 26, 2022 Great image ;CaK might be what I need to cut through the atmosphere the images in CaK always look sharp and defined. Cliff in Sydney Quote Link to comment Share on other sites More sharing options...
Smerral Posted June 1, 2022 Author Share Posted June 1, 2022 On 5/26/2022 at 6:32 AM, Cliff said: Great image ;CaK might be what I need to cut through the atmosphere the images in CaK always look sharp and defined. Thanks Terry and Cliff.! Cliff, I love imaging in CaK. It seems to work best at f.10, which is why I stop down my 102mm f.7 to 70mm. At that image scale the enhanced sharpness more than makes up for any loss in resolution. Quote Link to comment Share on other sites More sharing options...
Cliff Posted June 9, 2022 Share Posted June 9, 2022 Haven't tried stopping down a scope; is there a commercial device or do you just make up a cardboard ring ? I notice some scopes come with a smaller removable cap but not mine in fact it is metal and screws on. CaK is on my to do list the Baader Hershel wedge has taken my funds at the moment. I could probably get a Lunt Cak and a white light wedge for the same price. Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted June 10, 2022 Share Posted June 10, 2022 18 hours ago, Cliff said: is there a commercial device Cliff I sometimes use stepping up rings (or stepping down rings) intended for fitting filters in conventional photography. These are K&F Concept ones I have from Amazon. Essentially I place the whole assembly into the front of the scope dew shield after removing the smaller ones to make the aperture to the size I want. Then tape it into position with some electrical tape. It works really well. You may have to shop around for bigger ones if you have a larger aperture though. These work great on my white light William Optics ZS73 based solar setup. Quote Link to comment Share on other sites More sharing options...
.thumb.png.b25a6f26f627feca9d18699dbfd80148.png)
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.