Stephen J McIntyre:
Flattener and Filter On Pronto
Stephen J McIntyre:
Baader Semi-APO Filter Colour
Stephen J McIntyre:
Televue 0.8x Flattener and Baader Semi-APO Filter Tests
Stephen J McIntyre:
Arcturus Centre Crop Composite
Stephen J McIntyre:
Arcturus Corner Crop Composite
Stephen J McIntyre:
M5 ( NGC 5904) and Palomar 5 - 2010-05-21
Stephen J McIntyre:
Arcturus_Straight_NoFilter_Middle_stretched
Stephen J McIntyre:
Arcturus_Straight_APO_Middle_stretched
Stephen J McIntyre:
Arcturus_Flattener_NoFilter_Middle_stretched
Stephen J McIntyre:
Arcturus_Flattener_APO_Middle_stretched
Stephen J McIntyre:
Arcturus_Straight_NoFilter_Corner_stretched
Stephen J McIntyre:
Arcturus_Straight_APO_Corner_stretched
Stephen J McIntyre:
Arcturus_Flattener_NoFilter_Corner_stretched
Stephen J McIntyre:
Arcturus_Flattener_APO_Corner_stretched