Originally posted by mirocal I did some astro photo with K3 II and DFA 300/4, 20-40 sec exposure. The results were impressive. I shall definitely miss the integrated GPS... The O-GPS1 is ten years old, and GPS technology evolved quite a bit in the meantime.
Nice shot. Astro is one of the reasons I've had my K-3 II converted to full spectrum by KolariVision. They make a IR/UV blocking filter that adds extra sensitivity to the Hydrogen-Alpha and Sulfur-II wavelengths esp for Astro. I've been waiting for clear skies since receiving the camera and filter, but the few times I managed to get out of the city for the week-end there was too much cloud cover.
I would like to use my DFA150-450, FA*300/4.5 or Samyang 135/2 for that, but the filter is 49mm thread because that's what they still had in stock. Hence my first trials will be with the DFA100/2.8 macro. Kolari hinted that they were working on an upgrade to the filter to be released soon, so the other lenses will have to wait for that to become available in 77mm...
Wim