Question about Vivitar Telephoto 100mm f/3.5 Macro Manual Focus Lens for Canon FD
I bought two Anscor 46mm lenses (wide angle & telephoto). They have 46mm threads my M/S has 52mm threads. Since thes lenses do not have a shutter, do they screw into existing lenses? Excuse my ignorance, andy help would be greatly appreciated. Do I need an adapter?
SOURCE: ol' Vivitar 200mm telephoto lens
Is this the same lense that you have?
Posted on May 01, 2008
SOURCE: Blurry pictuers
First of all, tele-multipliers or tele-converters do not have the greatest optics in the world, and are usually fine for close up images but not much else. Secondly, they do restrict the amount of light coming into the camera which could interfere with the internal metering. Third, you have additional lens surfaces to get dirty. To fix the problem, start with the easy one, and clean all lens surfaces meticulously with a soft lint free cloth. If that doesn't fix it, try shooting non-moving objects in brightly lit areas. If you are still getting blurry pictures, try using the tele-converter on a close-up image within the focal length of the lens combination. If that doesn't work, give the teleconverter to someone you don't like and go buy a good quality 50-135mm zoom lens. Vivitar, Sigma, or other similar lenses are good quality and are very reasonably priced.
Posted on Mar 05, 2009
Does the aperture work when you turn the ring and push the aperture pin on the mount in? The lens should close down to the set aperture when you do this. If it does, then atleast the lens is useable.
What is missing is the detent for the click stops. This is a spring loaded ball bearing that 'clicks' into notches inside the ring. If this is broken or missing, finding a spring the right size might be a challenge, the ball bearing less so. To remove the ring and base, unscrew 3 screws coinciding with the 3 notches in the back plate, visible when you set the ring to f8. the back should lift off easily. don't lose the screws. The ball bearing, if it is still there, should protrude from a small hole in the lens barrel in line with the f stop index mark on the lens. Good luck.
P.S. The above is based on how my 200mm is designed so I'm making some assumptions that the 135mm is put together much the same.
Posted on Oct 27, 2009
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