Lens differences...

[Olof B]

The pin is going into a hole on the C-lenses.
And if the hole is not there, the lens locking mechanism is not going to lock the lens into position.

At the attached picture is three generations of 150mm.
To to the right a C, to the leftt a CF and in the rear a CFi.

 

[ToeInTheWater]

Olof, a gold star for you with my thanks!

Yes, that is exactly the camera I have. Your comment pointed me to a conceptual connection concerning the lens-lock button (which I would probably have made eventually - but you saved me a lot of time while waiting for the dastardly old sub-conscious). The connection is this: on my 500C with C lenses, the lens-lock button must be fully depressed to un-mount the lens as would be expected. But for CF lenses, it must be fully depressed to both mount the lens and to un-mount it. When I mount the CF lens while simultaneously fully pressing the lens-lock button, the CF lens slides in and locks like it should. Excellent!!!

But see my reply to Victorh, because that d*mn pin is interlocked to the shutter linkage!

 

[ToeInTheWater]

Lenses can only be fitted to a V series body when they are cocked.

Thank-you. I do always test the crank before changing anything on my 500C and for lens mounting I also check that the slot & anti-slot on the rotating thingies on lens & body are aligned to each other in the direction of mount-rotation. Old habits from way back.

The pin Olof B mentioned has no influence on the fitting of a lens.

Strictly speaking you are correct. It is clear to me now that the pin has no function in aligning or securing the lens as the orifice for it in the C lens is far too large to be effectual that way.

However, that pin very much has in influence on whether the lens can be used. It seems that the pin latches the shutter trip linkage somehow. If the pin remains depressed, the mirror and shutter release(s) are locked.

I think I will need to take the body to a tech and have the pin removed. I can't see a downside to that, can you?

Thank-you all for responding.

 

[ToeInTheWater]

I think I will need to take the body to a tech and have the pin removed. I can't see a downside to that, can you?

I just thought of the downside.

The C lenses can be mounted without pressing the bayonet release/unlock button. Because of this and because I did not know any better, I have always just mounted my C lenses (they are the only ones I had) one handedly. The pin interlock described above, ensured that the shutter-release was not inadvertently actuated during the mount.

With the CF lens, the fact that you need to depress the bayonet release/unlock button while mounting the lens also ensures that the shutter-release is not inadvertently actuated during the mount. But given that the C lens does not necessarily require that the bayonet release/unlock button be pressed during the mount, and if I remove the pin from the action line, then it will be possible to accidentally trip the shutter-release while mounting a C lens (given that the pin would now be absent) if I continue to do it one-handed.

The only protection against that would be to habitually use two hands when mounting any lens. One to depress the bayonet unlock/release button and one for the lens. Perhaps if I just get in the habit of doing that all the time regardless of which lens is being mounted then it will be OK to remove the pin.

Perhaps Polypal and others should revise the guide books to say something like:

"The C, CF, CFE, CFi, etc. lenses will mount on all V-System bodies. However, some of the earliest 500C bodies may require a minor one-time modification to allow for actually using (as opposed to just mounting) any CF or later lens. The feature requiring modification was dropped from the 500C after only a few years and was not incorporated in later models. The modification if required, should be performed by a technician with appropriate Hasselblad experience."

 

[blowupster]

"The C, CF, CFE, CFi, etc. lenses will mount on all V-System bodies. However, some of the earliest 500C bodies may require a minor one-time modification to allow for actually using (as opposed to just mounting) any CF or later lens. The feature requiring modification was dropped from the 500C after only a few years and was not incorporated in later models. The modification if required, should be performed by a technician with appropriate Hasselblad experience."

Huh I just got a 1958 500C and all my lenses works perfectly on it...as my cfv.
What was the modification ?

BTW I do not remember what are the 2 smal holes (only for the early 500C) on the left if you are in front of the body ?

 

[ToeInTheWater]

I spent some time on ebay and looked at a bunch of 500C s. A few 500 c s had the hole but not the pin (the pin had been removed or more likely had never been installed in the first place. Most did not even have the hole. My 500 c has the hole and the pin. Olof posted a picture of a 500c with the configuration in an earlier post in this thread in response to my initial query (thanks Olof)!

The mod would be to remove the pin. I'll perhaps post a pic of it later.

- W -

 

[blowupster]

You say that you have a 500C body?

How old is your (camera) body?
In the first (3?) years there was a pin at 3 o'clock, looking at the lens mount from the front. see attached picture.
And the C-lenses have a hole that corresponds to this pin that the CF and later lenses doesn't have.

If this isn't the case, then I don't know. As all lenses should fit every body.

And as nice info to know:
The two holes on the body (one above the trigger) are for a removable motor, that never came into production.

Any pictures or infos about proto of this motor ?

 

[Olof B]

No, sorry.
But I'm seeking.

And when and if I find something you'll be noticed.

 

[Fliger747]

I just mount the CF lenses like the C lenses on my 500 CM. Is this an incorrect procedure?

T

 

[wbulte]

I just mount the CF lenses like the C lenses on my 500 CM. Is this an incorrect procedure?

T

No