As the aperture number gets smaller (for example, from f/16 to f/11) the aperture opening gets larger and the image gets lighter. The reason you don't usually see this effect in your images is because when you or the camera change the aperture, the camera changes the shutter speed to keep the exposure constant.
Button Squash Cucurbita pepo Cucurbitaceae The fruit of the button squash is literally only 'button' if you pick the fruit when very young.There is a temptation to let them ripen but that would be a mistake as they will just continue to grow until you end up with pumpkins.utton Squash Cucurbita pepo Cucurbitaceae The fruit of the button squash is literally only 'button' if you pick the fruit when very young.
How to Pick Buttercup Squash. Buttercup squash thrive in U.S. Department of Agriculture plant hardiness zones 5 through 9. Buttercup squash, of the Cucurbita genus, is a winter variety known for its sweet, fine-grain flesh and gray cap on the blossom end. Although buttercup squash typically start maturing in late August or early September, you should check for ripeness a few weeks earlier if your area experiences a heat wave.