Hello I am new here so if this post is in the wrong thread please let me know. I am not a beginner in photographic terms - but in digital camera terms. I am not a fan of batteries and screens so would like to know if there are any DSLR cameras that do not rely on any batteries or screens particularly if they are a few years old and can be purchased as a body without lenses (so I can purchase lenses at will ie I am not interested in 55 mm lenses). I know most cameras need batteries for almost everything, rechargeable and small watch type. At most I do not mind a small battery for the light meter if its internal. Ideal would be something I can use manually without too much fuss (ie I can set the fstop and shutter speed manually with a knob and No autofocus and no auto - exposure). No screens. I suppose I want the digital memory without the LCD screen operations. It must be D SLR not simple shoot cameras. I know it might be a tall order - but somebody may have a solution.