EOS Rebel T7 with EF 16-35mm f/2.8L III USM

[JCVW]

I was gifted an EOS Rebel T7 for Christmas for a safari in January.  I'm loving learning.

I got a telephoto EF 70-300mm f/4-5.6 IS II USM lens, and the Safari pics are amazing! 

We're about to start camping season (RV).  I want to learn night sky photography.  I researched lenses for weeks.  I was about to pull the trigger on the Sigma 18-35mm F1.8 Art DC HSM, and then (truth) Friday night I was drunk online, and a refurbished Canon EF 16-35mm f/2.8L III USM popped up for 50% off, so I bought it.

Camping season is about these amazing landscapes in Colorado, Montana, Utah...  I assume this lens will be great for these intended uses, but I am questioning if I should diversify lenses instead.  

For example, grab the Sigma and the EF 50mm f/1.8 STM.  

I know mirrorless \ RF is current state.  It would break my heart to buy a new body after my husband just got me this camera.  So, I'm learning with this camera and want the best lens for what I want to capture: Night sky and big landscapes. 

Any feedback is greatly appreciated.

[jrhoffman75]

The 16mm EF lens is an excellent lens. Just add the 50mm lens to your kit. 

[Tintype_18]

Have fun! I like to experiment with different settings. I download the photos to my laptop, check the settings and pick out what was best.

[ebiggs1]

"The 16mm EF ( EF 16-35mm f/2.8L III USM ) lens is an excellent lens. Just add the 50mm lens to your kit. "

I guess he meant that lens? But in no way do I recommend you buy a 50mm prime lens unless you have a specific and real need for a 50mm prime lens. There are far better choices to spend money on unless you just have a pocket full and need to empty it some. The Sigma 18-35mm F1.8 Art DC HSM would have been my first choice but since you already bought the EF 16-35mm f/2.8L III USM there is no need to double dip on FL.

"I want to learn night sky photography." A top choice and very popular among astrophotographers is the Rokinon 14mm f/2.8 Lens. It is totally manual but that is exactly what you need for astro work.