Why Does Aperture Change When I Zoom My Lens?

In How-To by Jeff Harmon1 Comment

The aperture changes as you zoom your lens because the lens does not physically support the widest (smallest number) aperture at all focal lengths of the lens. This is most often something photographers see in very inexpensive lenses.

Help! Why Are There Black Bars Across My Photo?

In How-To by Jeff Harmon2 Comments

You can end up with black bars across your photo if you are using flash and you have set your shutter speed faster than the “max sync speed” of your camera. Rarely can a camera have a shutter speed faster than 1/250 of a second but you have to check your manual for the specific “sync” setting for your camera. …