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How does one focus for landscape photos in very dark conditions?

I have a Pentax K-r with the kit DA L 18-55 and a prime DA 35. As far as I'm concerned, they are good lenses indeed. However, there's one little annoyance: they doesn't have a focusing scale!

I like doing night time long exposure photography. Obviously, with the scene in the viewfinder almost pitch black, there's almost no way the AF system or my eyes can get a good focus on the subject. So, I guess it would be nice to have focusing scale in the lens isn't it? Do anyone know the focusing scale on those (and maybe more) "scale-less" lens?


I also do long expsosure night time photography. I use a laser or a spotlight to enable accurate focussing.

  • Nice idea! Is laser can really aid focusing? – Furunomoe Aug 3 '12 at 14:06
  • Laser work for me but it wont light up the space station like someone was asking to focus on :) – Zak Aug 5 '12 at 4:03

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