Welcome!
Originally posted by Sintar I enjoy taking pictures of Landscapes, Macro shots, and night photography. I am also an avid astronomer. I currently only own the kit lens 18-55mm with my new camera. I am interested in what lenses would be good to purchase in the future for day time Landscape photos and Macro shots.
Originally posted by Jean Poitiers The DFA 100 WR is your best option, if you want
Weather
Resistance. Otherwise you should also look at a few other options, e.g.:
Sigma 70mm f/2.8 EX DG Macro Tamron SP AF 90mm f/2.8 Di Macro
However, the long macros aren't too versatile for landscapes, maybe the
Pentax 35mm f/2.8 Limited Macro is an option for you.
The short working distance may be a problem for some subjects, though.
If you're looking for a versatile zoom lens with close-up (not quite macro) abilities, you should give these two a look:
Sigma 17-70mm f/2.8-4.5 DC Macro (max. magnification: 1:2.3)
Sigma 17-70mm f/2.8-4.0 DC Macro HSM (Contemporary) (max. magnification: 1:2.9)
As a walk-around zoom for landscapes and night photography, I'd suggest one of these:
Tamron AF 17-50mm F2.8 XR LD Aspherical IF SP Sigma 17-50mm f/2.8 EX DC HSM
If you're looking for primes, you should first figure out which focal lengths work best for you.
If you have already heard the Limiteds' siren call, you might as well go for it. You'll eventually end up there anyway...
regards
Jan