I tried the cover trick with no success. I wanted to get at the
iris by opening the camera . After removing a dozen screws, I could not
remove the lens becauce of hidden screws. I placed the batteries
back in and it works now. No more black screen.
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Dunno if this is old info to someone, but anyway id like to add the possible solution here too. To make it available to many who is searching it.
Put the camera in the Tv mode from the dial. (in Record Mode ofcourse) Select 15" from the omnibutton (pressing it left) Take a picture, count to 6 and release the batteries in the middle of everything. With mine this worked with the first time. It is reported that this might require several tries.
The iris is in some weird oil, and it gets stuck.
When you have image again take several pictures (maybe hundreds) to make the "iris" more free. I got this camera very cheap nowadays, alomost free. and it works fine now.
I have the same problem with my flawless-up-until-today S2-IS. I read in another link the problem is related to moisture causing the iris to stick, requiring a forced reboot. This worked for me, but after putting away the camera for a few days the prblem returned and needed the trick again.
When you turn on the camera and are able to see menus but the image displays are dark, try the following:
1. Place the program selector to "Tv" setting
2. Press the self-timer selector (twice) until you see the timer icon on the screen
3. Press the shutter button to take a photo; the self-timer begins to beep a countdown
4. Open the battery cover BEFORE the timer runs out.
5. After a second, close the battery cover and the camera will power cycle automoatically.
6. The displays should return to normal.
You may have to repeat this a few times to get it to work. Good luck.
Fixed! Several people I've described the problem to asked me if I dropped the camera, and I honestly did not remember dropping it, but I could've just forgot that it happened. Later, (after this was posted) it slipped out of my hand and fell to the carpeted floor. When I picked it up, I noticed that the lens shutter had moved (to be closer together). I turned it on, and after a few automatic adjustments, the camera was working like normal again! Perhaps the same thing that broke it, fixed it!
The US version of the MV600 is the ZR60. Canon has issued a service notice for this model world wide that seems to address your issue. The US version can be found at this link. Canon will repair any unit regardless of warranty status if this is found to be the problem. Contact your regional Canon service agency for details on getting your unit evaluated/repaired.
Given that the 15' batteries out trick is just a way of forcing the iris to get un stick i think your iris is probably still getting stuck (but this time open a bit). you could try doing the 15' trick a few more times in the hope of loosening it a bit. ultimately once you have had this issue i think you are living on borrowed time before it happens again unless you get it fixed by canon.
i think it is a case of defective apparture system. the system controlling the change of apparture opening has been locked. the reason may be friction in the blade movement or defective flex pcb carring the signal to the apparture motor.
If you can see images in play mode, previously taken pics, then check to see if iris is opening and closing, could be seized vanes on iris motor.
If nothing is ever visible on LCD or the eyepiece, this is what the manual has to say- remove batteries, reinsert them after a minute. If it persists press the reset button with a fine tip, its located inside the memory stick/battery cover. all your settings will be cleared.
Use your warranty if valid
The aperature error is due to the fact that the lens in not a constant aperature design. The settings on the LCD are assuming you are at full wide angle setting. As this lens moves towards telephoto, the aperature changes about 2/3 of an f-stop due to the mechanical movement of the lens elements. So a manual setting of f4.0 at full telephoto will be more llike f5.0 in reality. It is too bad Epson could not make the mechanical aperature adjust to compensate, but every nice feature costs something.
I have not had any issue with the shutter speed changing. One guess is that the camera has shutter speed/aperature combinations that it can't achieve due to mechanical limitations, so it chooses the available combination. Another is that it wasn't in manual mode, but rather aperature priority mode and the final adjustments changed the speed.