Chrome Fuji G690 lenses - release button interlocks?

[Dante_Stella]

I always understood that the original Fuji G690 (not the BL) lacked an interlock between the dark slide and the lens release button.

But what seems to be the case with one chrome 65mm lens I have is that it doesn't lock using the lens release button. I took a look at the locking ring bayonet mating surface - everything is assembled correctly (compared to other lenses I have here) - but it simply lacks the cutout in the bayonet that would engage the locking pin on the camera body. The effect is that you just have to tighten the mounting ring by hand - hard.

So if this is typical of chrome lenses (if it's not, I'll have a local shop machine the notch into the locking ring... this lens is in no way collector grade), why did the original G690 (chrome trim on VF) have a lens release button at all? Or do some early ones lack it?

Thanks
Dante

 

[Dante_Stella]

I can now answer this question. The G690 (the one with the chrome surround on the viewfinder/rangefinder) has no lens lock at all. I was finally able to see the right picture on Ebay.

Dante

 

[sevo]

I can now answer this question. The G690 (the one with the chrome surround on the viewfinder/rangefinder) has no lens lock at all.

It obviously is not unusual in the genre of breech lock medium format cameras - the Mamiya Press/RB/RZ mounts are missing a lens lock as well.

 

[Dante_Stella]

I have now confirmed this on several other lenses; chrome ones aren't designed to have a cutout in the lock ring for a locking pin.