11. The first practical reflex camera was the TLR of 1928. 12. This article is about photographic lenses for "'digital "'single-lens reflex cameras ( DSLRs ). 13. Petri produced many early bellows, rangefinder and single-lens reflex cameras . 14. The ultimate option is the SLRs, or single-lens reflex cameras . 15. But they are draining sales from one of Minolta's mainstay businesses, analog single-lens reflex cameras . 16. This particular feature can only be found in high-end professional 35mm single lens reflex cameras . 17. All the Retina Reflex cameras are remarkably complex instruments and quite heavy for their size. 18. For more resolution or larger prints, the next level up is the 35-mm single-lens-reflex camera . 19. It is a 6.3-megapixel entry-level digital single-lens reflex camera . 20. In the reflex camera , the light from the lens is projected onto a focusing screen.
