Yashica 27mm Auto extension tube


Product Rating

0 out of 5 stars from 0 reviews.

0 out of 5

There are currently 0 reviews for Yashica 27mm Auto extension tube. Use the tabs below to read reviews, ask a question, add your own review, see delivery information or check our Maintenance tips.

Love it, Like it, Tweet it, Pin it, Share it....

Condition: Excellent+

Yashica 27mm Auto extension tube

Excellent+ cosmetic condition

Complete with both front and rear caps

Fits both Yashica and Contax camera bodies

General Extention tube Information

The tube contains no optical elements; its sole purpose is to move the lens farther from the image plane. The farther away the lens is, the closer the focus, the greater the magnification, and also the greater the loss of light (requiring a longer exposure time). Lenses classically focus closer than infinity by moving all optical elements farther from the film or sensor; an extension tube simply enables this movement.

Because extension tubes do not have optics, they don't affect the optical quality of a lens. Because of their function, there are other effects: decrease of light; shallower depth of field; and loss of ability to focus at infinity. The longer the extension tube, the closer the lens can focus. The amount of light and depth of field will be equally reduced. On modern cameras using auto exposure this is all corrected for by the camera, but when not using auto exposure this has to be calculated and taken into account when setting exposure.

The precise reduction of the amount of light reaching the imaging plane can be calculated using the inverse square law formula.

Extension tubes without electrical contacts will not allow an electronic automatic camera to control the lens, thus disabling autofocus and in some cases forcing a user to shoot wide open unless the lens offers manual aperture control. More expensive extension tubes contain electrical contacts allowing the user to use autofocus and electronically control the aperture of the attached lens. An advantage to the non-electrical tubes is their lower price.

Other items like lens adapters may unintentionally have an effect similar to an extension tube. A lens designed for a small flange focal distance may not be able to focus to infinity when a lens adapter places the sensor too far away.

 

Camera House Price: £19.00




Go Back


The Yashica 27mm Auto extension tube is shown in Accessories.

Fast Delivery to Mainland UK

There are currently no reviews for this product. Be the first one to review Yashica 27mm Auto extension tube


Add Your Review

Ask a Question

Delivery will be made by Royal Mail, you will be able to track your order online to find your scheduled delivery date. Any deliveries scheduled to arrive on the Saturday or Bank Holiday will be delivered the following working day. We aim to dispatch your order within 24 hours of the time the order has been placed.

Looking after your camera

Use a Camera Bag

A camera bag does more than just protect the camera against scratches and dust: It keeps it safe from rain because many are waterproof on the outside.

Be Very Careful Around the LCD Screen and Camera Lens

Use only special equipment to clean your camera’s LCD screen and camera lens. Buy a special cleaning kit that includes liquid solutions, microfiber cloths and brushes that have been specially designed to clean your camera lens.

Never Leave Your Batteries in Your Camera for Too Long
Many camera batteries are now alkaline or lithium formats. If you keep your camera with the batteries inside of it in a moist area, then the batteries can get corrosive. So if you’re thinking about just putting your camera on the shelf for several months, do yourself a favor and remove them.

Turn Your Camera Off Prior to Doing Anything

Before you do anything to your camera, always keep in mind that it should be turned off first. No matter what it is—swapping lenses, changing memory cards or disconnecting or attaching cables—your camera should be turned off.

Cold and Wet Weather Can Wreak Havoc on Your Camera Body
Take your camera out only in a waterproof bag. If the weather’s unusually cold, just wrap your camera in a plastic bag that has silica desiccant packets for the reduction of moisture. It’s also a smart idea to have a soft towel with you to wipe off any moisture, just in case it should get on your camera.

Good Memory Card Care Is Good Camera Care

Only transport your memory cards inside of a protective caseMake sure the memory cards stay dust-free at all times. When removing memory cards, make sure you do so indoors or in non-dusty situations.
Make sure that you keep memory cards only in cool places. Never keep them in places where they may heat up, like dashboards or glove compartments.
Never place your memory cards close to magnetic sources. Examples of magnetic sources are things such as audio speakers, TV monitors and actual magnets.

Use a Filter to Protect Your Camera Lens

The lens of your camera is naturally fragile. As such, it’s susceptible to scratches, cracks, dents…you name it. A UV filter will not only will you give your lens a fighting chance, but you’ll also enhance the quality of your pictures.

Condensation Can Be Controlled

Condensation normally happens when you move your camera between different temperatures.
Allow your camera a chance to naturally get used to the hotter environment. Don’t place it inside a closed plastic bag when transporting it between different temperatures! Just let the camera sit in the humid temperature for a while, until condensation disappears.
If this still doesn’t get rid of all of it, you can utilize a soft cloth to wipe away any remaining moisture and marks left behind from the condensation.