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Nikon Bob
Guest
Don't discount the Nikon FE2 because it doesn't lock exposure with a half press of the shutter which is the usual way on most camera. It does have an exposure lock via the self timer button, This link explains how http://www.mir.com.my/rb/photography/hardwares/classics/nikonfeseries/fe2/basic6.htm. I can attest that it does work.
Bob
Bob