I am newish to star photos, and have two lenses that I'd like to use. Either a 28mm Zeiss or a 21mm Oly. I prefer to use my 5Dc, so no good liveview facility. That said, I will try a set with my T3i next time, just to be able to see more of what is going on in liveview as I learn.
Anyway, I am confused about how to setup focus and what works best. I would like to know how those of you with more experience set up to shoot night landscapes that have starry backgrounds.
For ex, the Zeiss stops at infinity, and stars look sharp. Near foreground objects are not in perfect focus at wide apertures. I read up on the hyperfocal scale on the camera (which obviously I never useops - should I use it to focus or should I just stick with using it at infinity? I think on my last shot, I messed up the foreground exposure by not setting the f-stop to f/8 and making a longer exposure - I shot the longer exposure but at wide aperture - so that's def. an improvement for next time.
As an aside, if I am shooting two photos to blend, do I need to shoot it more like a focus stack, with one image set for the stars and one image focused nearer for the landscape subject?
Same question for the OM21, which is one step more confusing for me because it seems to focus past infinity. It is VERY hard to see that through the viewfinder with the 5D on such a wide angle lens, so I am not sure how to use it for star photos. Should I just use the hyperfocal focusing scale? Or do I need to figure out where 'infinity' is and use that to focus?
Thanks & advance apologies if I screwed up the terminology!