![CaK FD 40mm f15 zwo183mm](https://live.staticflickr.com/65535/53651385564_b7eb2b9cda_b.jpg)
Sunday 14 April 2024
CaK Sun 13th April
Fishing for gaps in the cloud again and just enough time for a full disk, although high cloud and haze meant the proms were not revealing themselves. More tweaking of the filter setup is showing hints of the filaments though which is positive.
![CaK FD 40mm f15 zwo183mm](https://live.staticflickr.com/65535/53651385564_b7eb2b9cda_b.jpg)
Saturday 13 April 2024
Sunday 7 April 2024
Calcium Sunshine 6th April
Finally a bit of time, and despite storm Kathleen bringing gales and skies filled with Saharan dust an opportunity to observe. Trying out the custom Cak filter here, an Alluxa 0.14nm double stacked with a CaK PST filter, seems to offer an improvement in terms of a narrower bandpass with more contrast. Hopefully better conditions soon will allow further testing.
![CaK FD 40mm f15 zwo183mm](https://live.staticflickr.com/65535/53636942953_c2cf9bbf31_b.jpg)
![undesignated spot CaK 66mm f15 2x cemax zwo290mm](https://live.staticflickr.com/65535/53636732541_768fa11fdd_b.jpg)
![ar13630 CaK 66mm f15 2x cemax zwo290mm](https://live.staticflickr.com/65535/53637181690_37369bf877_b.jpg)
![ar13629 CaK 66mm f15 2x cemax zwo290mm](https://live.staticflickr.com/65535/53636942923_5950beffd0_b.jpg)
![AR13628 CaK 66mm f15 2x cemax zwo290mm](https://live.staticflickr.com/65535/53637181715_4748fb9d1a_b.jpg)
Saturday 16 March 2024
Sun 9th March
Saturday 2 March 2024
Calcium Saturday 24th February
The weather forecast for saturday had steadily got better as last week went on, but the weather man in me was actually slightly more optimistic for something better still. Turns out I was right, I woke to a clear, frosty and icey morning with nice blue skies. Seeing was forecast to be about 1.2" first thing, slowly worsening to 1.6" by afternoon. I'd already decided with the good transparency the day offered that I was going to image in CaK, and with the seeing looking like what was predicted I decided 80mm was the aperture I was working at for the closeups.
![CaK FD 40mm f15 colour](https://live.staticflickr.com/65535/53549092939_85c2842e0e_b.jpg)
![AR13590 CaK 80mm f15 2x cemax zwo290mm colour](https://live.staticflickr.com/65535/53550895239_0ac8fe8d91_b.jpg)
![ar13586 CaK 80mm f15 2x cemax zwo290mm](https://live.staticflickr.com/65535/53549826412_b67cfe70ef_b.jpg)
![ar13591 CaK 80mm f15 2x cemax zwo290mm](https://live.staticflickr.com/65535/53551136485_7f7973c6cc_b.jpg)
![ar13592 CaK 80mm f15 2x cemax zwo290mm](https://live.staticflickr.com/65535/53551028169_9f5fb7dacb_b.jpg)
![departing active region CaK 80mm f15 2x cemax zwo290mm](https://live.staticflickr.com/65535/53551028164_d7a8c98b3d_b.jpg)
![departing plage CaK 80mm f15 2x cemax zwo290mm](https://live.staticflickr.com/65535/53549826382_320c933c90_b.jpg)
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