Auto focus will not focus. lens problem or camera problem?
I have a maxxum 300si with a Sigma 70-210 lens(1:4-5.6) When I use auto focus it just keeps refocusing and won`t focus accurately enough to be able to take a picture under any condition.s I don`t have another lens to try it with but could it be a lens compatibility problem? I have always used Sigma lenses for any camera I`ve had but this is just too strange.
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Is this an auto focus lens? Most shift lenses are manual focus. Also, because they shift, they can generally only be used on manual not he auto settings. If the contacts are not on the back of the lens then it will on communicate with the body
The problem sounds like the camera did not reset properly after the last exposure. Minolta deigned the camera to keep the aperture fully open except during exposure. During exposure it snaps the aperture down to the selected opening, then opens it again to allow enough light for proper focusing. If it did not fully open the blades after the shot, much less light would pass through the lens. The viewfinder would be darker and look murky. Most likely cause? Dried up lubricants in the camera. Next likely cause? Teeth broken on a plastic gear. Get it to a camera repair place. Get estimates first.
That's the Acute Matte Focusing Screen. They are made to be swappable and easily installed. While I don't know the specifics of your camera (I own a Maxxum 7000), I can assure you it's probably easily fixed, and probably not actually broken. Most likely, it's retainer just let go.
Hey sunnibeach4, On SLR cameras the filters are attached to the end of the lens via threads inside the end of the lens barrel. Without knowing exactly what lens you are using I can't tell you what filter diameter you need but most lenses list that information on the inside rim of the front of the lens. I hope this helps! Sincerely, Allan Go Ahead. Use Us.
Is there a micro focus switch on the lens
On my lens if switch to Micro Mode the Auto focus is disabled, Also it is a stupid question but you are using a AF lens and not a xi series or manual focus lens.