This is my friends 1970 SS Chevelle that he generously allowed me to photograph. The engine is a 503 Cubic inch 500+ HP LS-3 equipped with a throttle body fuel injection system. I had seen other people's classic car photos with the hood made transparent so the engine was visible. My goal for the photo session was to achieve that type of image in one of my trademark gigapixel wall mural sized images.
Some 2871 individual focus bracketed photos went into creating this photo. Shot with Canon R5, 200mm lens, f/13, 1/125th sec., 400 ISO using the R5's focus bracketing mode. I used a Gigapan Epic Pro to accomplish this. I had it set to do 33% overlap for the images in manual mode. The Gigapan would move to a location and wait while I used a remote shutter control to fire the camera. I did this because each set of focus bracketed images will take a different amount of time depending how near the nearest object is relative to the camera. I had the camera mounted on a tripod at about 7ft. above the ground. I had to stand on a step ladder to operate the camera.
These were focus stacked to create a 5 row x 13 column set of 65 focus stacked images that were stitched to form an image with the hood of the car closed. I shot a second set of images with the hood open. I focus stacked each image set with Helicon Focus software. I then imported all the focus stacked images into PTGui and stitched them together creating a version with hood closed and a second image with the hood open. I then imported both images as layers into Photoshop. I masked off the area of the hood in the hood closed version to allow the engine to be visible trough the hood. I had to make sure both sets of images were shot from the same exact position. This is NOT upsized using what-so-ever. Every pixel is real.
The original finished image is: 1.55 Giga-pixels, 31,996 x 48,465 pixels,106" x 161", 8 ft. 10 in. x 13 ft. 5 in., 300 PPI un- cropped image size