10mm Fun at Church, St Patrick Cathedral, Harrisburg, PA

When getting the most architecture in the frame is the goal, move the camera as far away as possible. When photographing a ceiling, the floor becomes a hard limiting factor in this regard, making the ultra-wide 10mm angle of view a differentiator from most other lens options.

For this image capture, the Canon EOS R5 and RF 10-20mm F4 L IS STM Lens were locked onto an RRS BH-40 Ball Head on an RRS TVC-24L Mk2 Carbon Fiber Tripod. Taking the most architecture in the frame theme to the limit, the TVC-24L's legs were angled fully open, bringing the camera within a few inches of the floor. The vertical side of the MC-LS Universal L-Plate was removed, permitting full rotation of the vari-angle LCD for straight-up composition.

For precise symmetry without converging lines, the lens must be centered in the scene and leveled, leveled in a straight-up angle in this case. Floor tiles and the lines between them are frequently helpful references for finding the absolute center of a building. After positioning the lens over the center of the center tile, adjusting the camera to perfectly straight up was the next challenge, one that required finessing, trial, and error.

With the camera a few inches above the floor, staying out of the 10mm angle of view meant me going nearly flat on the floor while the HDR brackets were captured. Never before have I seen this much of the St Patrick Cathedral ceiling in the frame.

Now is a good time to add 10mm to your kit!