Hasselblad a16 back darkslide question!

[kyubophoto]

Hello,

Are there two different types of darkslides for the a16 film back? I lost mine recently :bang: and while searching up replacements, they are all sold with the two bumps by the handle (which I assume are for locking in). However, the one I had was completely flat, and it was indeed an original Hasselblad darkslide.

Will it matter if I use the one with the bumps? My camera is a 1993 503cx and same back if that information helps at all.

Thanks in advance!

 

[veraikon]

I looked on each of my darkslides (one A16 EI, one A12 RE, one I bought on a flea-market as spare part) .
Each has these two bumps (I thing A-mags need it for locking).
May be your darkslide without bump was one from the pre A-mag era ? (also bought as spare part?)

 

[kyubophoto]

I looked on each of my darkslides (one A16 EI, one A12 RE, one I bought on a flea-market as spare part) .
Each has these two bumps (I thing A-mags need it for locking).
May be your darkslide without bump was one from the pre A-mag era ? (also bought as spare part?)

Thank you for your reply. I am mainly concerned about my back might not be designed to be used with the 'bump'ed darkslide. Reason being is that I have tried to put in a bumped darkslide and it would push the black strip between where the body and the back meets to accommodate for the lack of space. I have posted a picture of the gap below. Would you mind letting me know as you put the darkslide in, does it push the black bar?

 

[Rangefinderfreak]

You have destroyed the seal. maybe it was mounted wrong in the first place. It is a foam strip with clear plastic wrapped around it. They don`t cost much and can be bought at all hassy service guys, or Ebay. Just open the 9 screws in the plate and replace it... Not "rocket science"

http://www.hasselbladhistorical.eu/ht/htseal.aspx

 

[veraikon]

no imho it will work. The "black stip" is something deeper in the mag -

 

[Rangefinderfreak]

no imho it will work. The "black stip" is something deeper in the mag -

Really ?? I have changed that maybe twenty times during my hassy career...

http://www.flickr.com/photos/40146285@N08/

 

[kyubophoto]

Hi guys, would you mind explaining to me about this black seal? How is it destroyed? Would you guys mind posting a photo of your seal? Id love to do a cross analysis of what its supposed to look like. Thank you.

//edit

Sorry rangefinderfreak, i am not familiar of the parts of a hasselblad so i wasnt sure of what you posted. Is the small black strip between the back and the body the seal that you are talking about? The one you posted on your flickr? If so, how does it get destroyed and what is it supposed to look like? And going back to my original concern about the darkslides, should a "bumped" darkslide fit without any problems? Thank you.

 

[Jamie123]

Hi guys, would you mind explaining to me about this black seal? How is it destroyed? Would you guys mind posting a photo of your seal? Id love to do a cross analysis of what its supposed to look like. Thank you.

//edit

Sorry rangefinderfreak, i am not familiar of the parts of a hasselblad so i wasnt sure of what you posted. Is the small black strip between the back and the body the seal that you are talking about? The one you posted on your flickr? If so, how does it get destroyed and what is it supposed to look like? And going back to my original concern about the darkslides, should a "bumped" darkslide fit without any problems? Thank you.

Check out the link he provided in his first post. Plenty of pictures there. The seal is, as rangefinderfreak noted, a piece of foam that's wrapped in a piece of plastic. Sometimes, due to wear or age, it can happen that the fold protrudes too far into the gap and so when you put in the darkslide you sort of cut into it and tear it.
As rangefinderfreak already said, changing it is not a big deal. The seals are cheap and easy to replace. In fact, I would advise replacing them every few years even if they still seem fine.

 

[Nokton48]

Rangefinderfreak is right. It's very easy to change the light seal in a Blad magazine, you can do it yourself in ten minutes. All you need is a new seal and a jeweler's screwdriver. They should be changed every few years, as they tend to break apart inside the film back after a while. Not difficult and the new seals are not expensive.

Here is a Youtube on how to do it yourself (no sound I guess).

http://www.youtube.com/watch?v=otbq0rWs__g

And I buy my Hassy light seals from this Guy on Ebay:

http://www.ebay.com/itm/HASSELBLAD-...152?pt=LH_DefaultDomain_0&hash=item43bd90a548

 

[veraikon]

Hi guys, would you mind explaining to me about this black seal? How is it destroyed? Would you guys mind posting a photo of .

There is a pictured guide how to replace the seal (if broken*): http://www.stefanheymann.de/501cm/magazindichtungen.htm Normaly the bumpers won´t break the seal. *just test it

 

[Nokton48]

Normaly the bumpers won´t break the seal. *just test it

That's a good point, they don't always break.

I test mine, by taking the Backs and a Body out on my back deck, on a bright sunny day. Half an hour in the sun, with the slide slot in the sun, and darkslide inserted, and then pulled, for another half hour. That's a good acid test for a Hasselblad filmback light-leak.

 

[kyubophoto]

Thank you for the wonderful info, i learned something new about seal replacement. However, i dont have a light leak problem on my back. My original concern was that the bumps on the darkslides push that strip of black right between the back and the body in the first image that i have posted. It just feels like it wasn't meant for a bumped darkslide. Now i was wondering if that is a normal effect on all hasselblads or if i should be searching for a non bumped darkslide.

 

[Rangefinderfreak]

The bumped darkslide is the factory original. it is of stainless steel, slides in without much effort. the copies are sometimes standard steel, also of different thickness. The wear on the seal is because there can be all kinds of contamination/greasy film on the darkslide that just gets stuck on the plastic on the seal. By occasionally opening the cassette and cleaning the plastic on the seal you make sure your seal will stay fresh and do it´s work.
If you just have one cassette and never change it, you might not have to experience the wear. I have four 120 cassettes and two 70mm cassettes. The way I work is that I bracket films ( brands and development) on each subject and might change backs maybe six times in a roll. That is LOTS of wear on the seal...

 

[veraikon]

ok when you get a light leak, change the seal it´s really not difficult (or let change it, typical price in Europe about 60€). Try now to get an original dark slide (I believe @ Hasselblad they are out of order) . Use it carefully and never store the mag with inserted darkslide (if you have no film in the mag).