Hi, i own maxxum 5000 with sigma 28-200mm. The problem is that even though the camera allows me to change aperture value e.g. 22, 19, 8, 4 etc, it doesn't physically open the aperure at all. I tried my lens on another maxxum 5000 and is working perfectly fine. The problem I believe is that camera doesn't send an electronic impulse to the lenses and thus the lenses refuse to open (I can see a tiny hole when looking through it's back) and I believe the lightmeter is OK. I tried using unimer to measure value on camera's pins onto which lens pins are laid and some of them do not show voltage at all. What do I do, please advise.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Any of the problems listed below with give off a "Help" message on the external display-you can get this from a bad film transport system, failed aperture base plate mechanism, dropped focus screen, bent mirror, and a whole slew of electronic problems from blown boards to bad wiring connections.
Apparently there is no Minolta Service Centre to buy spare parts.
First, check if you're taking the lens cap off. If you're taking it off, then check your exposure. See if your light meter responds to changes in illumination. If everything seems fine, then check if the aperture of the lens works as intended. Then, without a lens nor film in bulb mode, check for the mirror and shutter to work properly. If the light meter, aperture, mirror or shutter seem to flaw, then get your camera serviced by an experienced camera repair technician.
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.
Most likely: weak batteries on/off switch has internal corrosion Battery contacts corroded If fresh batteries do not cure the problem, it needs repair. Consider the cost of repair vs. replace with another Maxxum 5000/7000 on Ebay. They go pretty cheap these days. They're practically giving away the flashes for those early maxxums, even the 4000 flash.
Sounds like the aperture control mechanism is bad (Minolta Maxxums are famous for this problem). I would recommend sending the camera to Sony for repair (Sony now owns Minolta's photographic departments). I've been repairing the Minolta Maxxum cameras for over 15 years and I prefer to send the Maxxum 7 in for this repair do to Minolta's difficult design of this camera.
I no the older Minolta's had an aperture problem the pictures when zooming out after they were developed were very dark. But inside and wide angel shots always came out nice I had to have the aperture base plate replaced on my Minolta Maxxum 3000i my point and shooter, I wish this helped but it sounds like something different in your case it also maybe the aperture acting different in your camera than it did in 1 of mines.