Proms and spicules from July 23

[gabrieli]

This was a great day to continue trials with my c9.25. It was also a "first light" for an Orion 0.8X 2" focal reducer. The reducer - sensor distance to achieve 0.8X is stated as 55 mm. I used more than that due to the required "tilter" to eliminate Newton's rings. Also, 0.8X would not be too useful for the purpose intended (to reduce the efl with the telecentric). The focal reducer covers the entire field of both a 1/3" camera and a 1/2" camera with the only defect being a minor hotspot in some views.

The Ha module consists of the following starting at the 2" visual back:

6nm Ha filter (2") + 3X telecentric + Quark Combo + Orion 0.8X focal reducer + tilter + camera (Blackfly S 3.2 Mp or 1.6 Mp).

The first image was taken with a Blackfly S 1.6Mp at 180 fr/s (maxes out at 225 fr/s) and the rest on a Blackfly S 3.2 Mp camera working at 50 -70 fr/s.

The seeing at just past noon was moderate at first and then became worse afterwards.

lou

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[marktownley]

You got some great closeups there Lou!

[Montana]

Wow!! great fluffy texture at close up

Alexandra

[MAURITS]

Really nice captures Lou.

[xn44]

Good images!

[MapleRidge]

Great closeups Lou

Sounds like the warm weather has held on in the GTA since we left on holidays...rather warm in Scotland this week!!!

Brian

[gabrieli]

Hi, Brian

I hear the temperatures are scorchiing south of you, causing some real problems.

Maybe when you get back, you can post some landscapes.

Lou

[Carbon60]

Nicely done, Lou. Lovely close views.

Stu.