Launch the Image Capture app on your Mac. Set its Preference for “When camera is connected open…” to Image Capture (default is to use iPhoto, IIRC). Connect your camera to the computer with its USB cable, then turn it on in its view or review mode. If you set it up this way, in the future Image Capture will launch automatically when you plug in and switch on your camera.
Image Capture will launch and show a dialog box. Click the “Download Some” button to open a window with camera’s contents, which you can view as thumbnails or a list. A slider in the window header allows adjustment of the thumbnail size, the largest should be useful for quick check of content. If you need full size views, select pictures in the Image Capture window and “Download Some” to an existing or new folder. Set Image Capture “Automatic Task” pulldown in window header to open Preview app on download, where you can scroll through them. While this does involve a “transfer’ to your computer, you can easily just trash the whole folder or just the bad shots.