Get an even steadier hold on your shot making with the olympus pen f by adding the ecg 4 camera hand grip constructed especially for use with telephoto lenses this large grip adds stability to your photography letting you bring your subject up close without any slips or wobbles the result long focus images with greater clarity and sharper detail whats more once its attached to your pen f the ecg 4s ingenious design gives you instant access to the battery compartment without removing