adapter tube
adapter ring

Adapter tubes are available from Canon or third party suppliers.

Filters and other threaded lens accessories can be used with an adapter tube.

Most adapter tubes have 58 mm filter threads.

The camera features a threaded barrel that can be used with an Olympus CLA-4 55mm or compatible aftermarket adapter tube.

In addition to standard filters and close-up lenses, the adapter tube can be used to attach wide angle or telephoto converter lenses to the Powershot G series.

Practically all SLR and DSLR camera bodies can also be attached to telescopes and microscopes via an adapter tube to further enhance their imaging capabilities.

So I went on to tell him about the fuse adapter rings.

I had made a hundred adapter rings, so there would be no shortage of ammunition.

Anyway, messing about with this adapter ring wouldn't do any good.

He thought that the adapter rings would be made by hand with taps and dies, so he ordered them.

How is this adapter ring to be made?'

Such mechanical adapter rings typically require manual setting of focus and aperture.

(Only the adapter ring may need changing).

Based primarily around square filters, these require a holder which is attached to the lens via a simple adapter ring of the appropriate size.

An adapter ring has a female M42x0.75 metric thread on one side and a corresponding lens mount of the camera body.

'Is this adapter ring going to work?'

Within forty-eight hours the drawings and specifications of the fuse adapter ring had been completed and sent to the Beirut machine shop.

'When were the fuse adapter rings delivered?'

That meant that somewhere - most probably in the battery works - the adapter rings were now being married by night to the Katyusha rocket bodies.

A threaded filter adapter ring ensures that the camera can make use of standard 37mm camcorder accessories such as wide angle telephoto and macro lenses and filters.

'To make these two fit together you need an adapter ring with an outer thread to fit the gaine and an inner one to fit the fuse.

Since teleside converters are afocal they can be mounted universally on almost any camera lens via adapter rings designed to fit the filter ring of the camera's primary lens.

'You realise that with a plain adapter ring the wrong- size fuse will only be tightened when the wrench forces it up against this disc inside the collar of the gaine?

A 7075 aluminium alloy tube forms the main structural column, between the launch vehicle adapter ring at the "rear," and the 2.1 m radio dish antenna affixed to the "front" flat side.

It was on the evening of the day on which we had received Ghaled's approval of the fuse adapter ring sample, and the order had gone to the Beirut machine shop for a hundred more.

Adaptors can be found to allow use of a non-Leica 39mm mount into the k mount, typically as a M39-M42 adapter ring that is mounted in a M42-PK adapter; they may focus to infinity.

STP and the Air Force Research Laboratory's Space Vehicles Directorate developed a secondary payload adapter ring for the Evolved Expendable Launch Vehicle (EELV), which can host up to six 400-pound micro satellites.

Tips can be used with pairs of adapter rings: an inner ring is dropped inside the bag and pushed part way out the hole, a tip is slipped over the ring, then an outer ring is slipped over the tip and screwed onto the inner ring.