Hello i need some advice ,using a Hasselblad 500 C/M?

on the lens (SYNCHRO COMPUR) what do the green numbers on the lens represent, and also theres an opision to choseV,X and M,and theres also a button to close the shutter even more ,how and when is this function used


Many thanks
Hello i need some advice ,using a Hasselblad 500 C/M?
M and X refer to different flash synchronization settings. When using old fashioned flash bulbs, the bulb needs a small delay to reach full intensity. Thus, on the M setting, the camera fires the flash a fraction of a second before the shutter opens. M stands for Medium peak bulb, which was the most common type of flash bulb(there are also fast and slow peak bulbs).





The X setting is used with normal electronic strobes, which reach their full intensity immediately. The shutter opens at the same time the flash is fired. The X stands for Xenon, which is the gas used to fill the flash tubes.





V is the self timer setting.





In normal use, leave it set to X. If the switch is set to M when using an electronic strobe, the flash will fire and go off before the shutter even opens, so it will effectively be a non-flash photo.





I'm not familiar enough with Hasselblad to answer your third question.





I would caution you, though, that Hasselblads are extremely easy to completely screw up with improper operation. Read and understand the manual before attempting to use them. If you still have a question about a feature, ask a local camera shop or even a pro who uses a Hasselblad before screwing around with it. Otherwise, you could end up with a lockup, or even worse a repair bill of a couple hundred dollars.
Hello i need some advice ,using a Hasselblad 500 C/M?
I think your third Q refers to the lever to close the aperture on the lens down so you can see the depth of field before you take the final picture.