Solar 2012-06-06 Venus transit





White light equipment: Canon EOS 500D, EF 70-300mm
White light filters: Baader Solar foil.
Hydrogen Alpha: Lunt 60mm Solartelescope + Lunt 50mm front filter for double stack.
Extra equipment: 0.5x focal reducer, 1.5x barlow, 2.5x Powermate
Camera: DMK31AU03 USB Mono

I climbed on top of the roof to capture the Sun/Venus rising. It was behind some trees and a large watertank.
So i captured the moon while i was waiting.

ISO 100, f/5.6 @ 275mm, 1/350 shutter.

Link 2376 x 1584 full resolution


The it finally appeared. ISO 800, f/11 @ 280mm, 0.5 sec exposure.

Link 2376 x 1584 full resolution


Tried to do a HDR shot but could only use 3 shots as the sun was moving too fast.
ISO 800, f/11 @280mm, shutter: 1/10, 1/6 and 0.3 seconds.

Link 2100 x 1400 full resolution




Then it was time to pull out the big guns - hydrogen alpha.
60 GB data were recorded in 78 AVIs.

0.5x focal reducer.


Alternative of the above.




No magnification - Mosaic of 5 images.

Link 2000 x 2000 full resolution


Alternative of the above.

Link 2000 x 2000 full resolution




1.5x barlow - Mosaic of 9 images. After the Venus transit.

Link 2000 x 2000 full resolution


1.5x barlow - Mosaic of 17 images.

Link 2000 x 2000 full resolution




Image with 1.5x barlow:



Images with 2.5x Powermate:






Link 1428 x 728 resolution



Link 1855 x 912 resolution



Link 1855 x 912 resolution




Time lapse:

Sequence A - 600 frames were recorded every 30. seconds and 200 frames were used for stacking for each AVI.
It was recorded for 20½ minutes with a 1.5x barlow.


Link 3.6mb quicktime at 982 x 742
Link 3.0mb inverted quicktime at 982 x 742


Cropped GIF animation at 160 x 160