john_booz

<p>Dear Henry, I got nothing but time as the old adage goes, so I am interested in learning about how the Hasselblad works. As I stated, there are Hasselblad Repair Manuals for the 500 c/m for sale on EBay. I did find and watch a video someone posted about removing the interior from the exterior shell, so that helps one to get going. I did notice the plate you mention up at the area of the camera where the shaft that rotates the mirror would go.<br> I appreciate your help and will probably get the manual and see what I can do. I was merely asking if anyone had knowledge of this problem - which you did. However you stated that the way you did the repair was probably different from the way a real "tech" would do it. We'll see what happens and I'll stay in touch with you. John</p>

<p>Dear Henry and Douglas Fairbank, Again I probably described my problem bad, and a better question would be: When looking thru the camera from the rear(without the lens and film back), I can see the rotating shaft that appears to go from the actual shutter button ( on the front left) to the rewind screw on the camera that engages with the screw on the back of the lens to rewind the lens shutter and aperature. I dont think this is where the mirror lever latch is and am asking is the mirror lever latch that may need adjusting actually at the rear of the camera where the mirror is actually mounted and rotates up from? If so then I need to remove the interior body of the camera from the outer shell... correct? Thanks for your help, John B</p>

<p>Dear Henry Finley and Douglas Fairbank, I am very grateful for you guys responding to my questions about my Hasselblad 500 CM with the mirror problem ( ie the mirror raises before the final crank of the rewind crank). This is my 1st time blogging so I am very happy to see you took the time to respond.<br> Like my last comment stated: the mirror works normally when the lens and back are off: it stays down until the crank is fully wound and it raises when the shutter button is pushed. The time it raises is when the lens is mounted. Having tried and watched the action many times, I also thought there must be a latch not engaging. I think it is directly in the middle of the lens mount hole, and under the screw that engages with the lens to crank the lens shutter. I have seen Hasselblad Repair Manuals on EBAY for about $20 and I think I could fix the mirror if I have something (ie the repair manual) to refer to for the minute screws, etc. Do you think this is a good way to go, and once again I cannot see any other reason that the mirror would function correctly without the lens and body mounted? Thanks again, John B</p>

<p>Henry thanks for your help. I have another question you may be able to answer. <br> When I take the lens and film back off the body - and crank the rewind completely, the mirror<br> drops to the down position and doesn't raise up prematurely. It functions until the shutter button<br> is pushed in the normal manner. Furthermore I can crank off shot after shot and the mirrror<br> works as it is expected to (ie not raising up early). Shouldn't the mirror raise early regardless<br> of the lens and back being on or off? Let me know what you think, Thanks, John B</p>

<p>Maybe I described the problem poorly. The problem is now: when doing the rewinding to set<br> the shutter and mirror - the shutter cocks, and the mirror is in the down position and ready until<br> the first red dot on the Rewind crankcase. But when you wind the crank the final fraction of it's<br> total distance (ie the last small crank from the 1st red dot to the final fully cranked position,<br> (which is the second dot), the mirror raises up without activating it with the shutter. <br> So the mirror actually goes up before it should. It seems to work fine without the lens<br> mounted. Hope someone has some advice for me. Thanks John</p>

<p>I have an old Hasselblad 500 CM camera that I have not used for a number of years and was going to sell<br> to someone. I tested it out using the shutter speeds matched with the various Fstops. When my buyer<br> tried the camera the mirror began to stick in the up position on about every 10th shot. <br> I have since tried the camera, and as long as I am cranking the rewind cylinder crank gently the mirror<br> works OK. The more I have tried the shutter by shooting off shots the more frequently the mirror has <br> stuck in the up position. If I rewind the the camera gently to the 1st red dot on the rewind crankcase all<br> is OK. But it is in the final small cranking between the 1st and 2nd (final position) red dot on the crankcase,<br> that the problem occurs. Do you have any advice as to what is occuring?</p>