So long as the camera is in good working order the best advice I can give you is...., if something does not work as you expect it to, DO NOT FORCE IT!!!
Try and establish why it doesnt work instead, i.e the back will not come off/go on if the darkslide is not in, the lens will not mount/dismount unless the body is cocked and you will not be able to mount a lens if it is not cocked.
(Note that the lens will only usually not be cocked when off camera if you have dismounted it incorrectly when using extension tubes (and perhaps teleconverters etc...,))
When you get another magazine for two film stocks, always ensure the camera is cocked before removing the back. This is a good routine to get into, otherwise when switching between magazines you could double expose a piece of film and unknowlingly wreck two images!
To get optimum image quality, use mirror lock up when ever you are using a tripod.
When loading the back, as Fintan says, keep the film nice and tight and align the arrow correctly. Also ensure you run the film under the lip which limits the film pressure plate movement.
Finally, you may find you need a short extension tube with the 150mm for tight portraits.
Have fun with your new toy!
Last edited by Julian Hart; 10-03-2004 at 02:14 PM. Click to view previous post history.