Originally posted by Scootatheschool1990 Good day yall!
Ben Canales' photography inspired me to shoot astrophotohpgraphy. His lens is a canon 24 1.4. Any chance there is an option for my k-5 k-mount or even m42?
The criteria for my search are 2 things:
- f1.4 to 2
- 15-17mm (for a 24mm equiv)
I hope there's a lens out there that will Have these specs!
-Scott
What Ben Canales is saying is to capture as much light as possible. With Canon you can go full frame with a relatively fast wide lens, along with the highest useable ISO. He is just using the most appropriate equipment - he choose Canon.
Now just because he is using a 24/f1.4 lens does not mean that you need to look at the exact equivalent field of view for the K5's cropped sensor - a 24mm lens is still a 24mm lens regardless of sensor size. Just about the best you can do (in terms of fast and wide) is the K 28/f2 lens (its the same lens as the Zeiss 28mm f2 Distagon that has a cult following). Remember that 24 to 28mm is about the widest you can go with the least amount of distortion.
Use what you have in terms of speed and width, then work up to where you want to go based on your equipment (or possibly move to another that has the lenses you desire - however, its expensive).
You can compensate and trade capabilities for what Pentax has available. The O-GPS unit with astrotracking will provide you with additional time, however since it stabilizes the moving stars (removing the trails), it will essentially blur the landscape (since it is not moving).