I make wallet-size prints from slides and send them to the aviary etymologist. Whether you're working in an aviary or the backyard, shooting butterflies can be just as rewarding as any other kind of wildlife photography, and it won't break your budget. If you exercise good technique and patience, you'll be able to obtain professional quality results with few if any additions to your camera bag. Plus, you'll be delighted to discover that photographic images which reveal details of butterfly anatomy and behavior generate great impact. Adding extension tubes causes significant loss of light of up to two stops, but your TTL metering system will compensate for this.
Auto focus is lost with the use of most extension tubes.
You do not lose any light with close-up lenses . The 1.4x and 2x teleconverters multiply the focal length and the magnification by 1.4 and 2 respectively. The 1.4x takes away one and the 2x takes two stops of light. Nearly all teleconverters are not recommended for zoom lenses. All Rights Reserved.