I'm planning a couple of photo excursions next year in slot canyons with very lo w light and am concerned about the sensitivity of my light meter, which is the S ekonic L508. Although its published sensitivity is only 1 EV less than others l ike the Pentax Digital and Minolta Spot meters, I recalling having read a few re ports that it is not sensitive enough in low light situations. Has anyone here who uses the L508 had problems in low light situations? Have you found it adequ ate in those situations? How are the Pentax and Minolta spots in low light situ ations? I'm leaning towards purchasing the Minolta if I get another meter becau se it has a memory function, which I use a lot on the Sekonic. Thanks for your feedback.